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000
FXUS66 KOTX 032216
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
215 PM PST TUE MAR 3 2015

.SYNOPSIS...
A weather system will exit the region today, diminishing the
threat of snow showers and gusty winds. Much colder air will move
in behind this system, with temperatures well below average for
the middle of the week. A dry period, with moderating temperature
will follow for the end of the week.


&&

.DISCUSSION...

Tonight through Thursday: Dry and mostly clear conditions dominate
the weather and, after one more cold night, temperatures begin to
warm. Through Wednesday night a ridge of high pressure flops into
the region, littered with some weak mid-level disturbances. Those
disturbances will bring the occasional middle to high clouds but
otherwise dry conditions. The ridge is dampened slightly by
Thursday as a shortwave pushes into British Columbia and a broader
area of high clouds pushes in. Much of the snow that fell Monday
has melted off, but the lack of cloud cover and lighter winds
should still allow for some rather chilly lows Wednesday morning.
Values are expected to be some 10-15 degrees below normal.
Regional temperatures then begin to moderate under the ridge
Wednesday into Thursday, with highs slightly above normal again by
Thursday. There is some potential for patchy fog in some of the
sheltered mountain valleys, especially up toward Stevens and Pend
Oreille and perhaps Boundary county over the next few nights, with
moisture from melting snow allowing for some potential saturation
under bottoming out temperatures. Confidence is low, so it was
left out of the forecast but it will be monitored. /J. Cote`

Thursday night through Tuesday: A ridge of high pressure will
dominate over the region. Some mid to high level clouds are
expected to top over the ridge at times and we may even see a
small chance for a shower over the northern mountains. Otherwise,
the region will remain dry and temperatures will experience a
warming trend. Temperatures are expected to be 10-15 degrees
above normal by early next week. This would translate into our
first 60 degree day of the year for many locations. Models
indicate that the ridge will begin to break down after Tuesday of
next week. This is expected to be the best chance for precip in
the foreseeable future. /SVH

&&

.AVIATION...
00Z TAFS: A ridge of high pressure will build in, with a drier
northerly flow. Minor upper impulses riding in that flow will
produce only a few middle and high clouds over the next 24 hours:
a VFR regime. The lower levels remain dry and winds are expected
to remain at generally at 10kts or less. /J. Cote`


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        18  43  22  48  28  53 /   0   0   0   0   0   0
Coeur d`Alene  15  44  22  49  26  53 /   0   0   0   0   0   0
Pullman        17  44  23  51  32  53 /   0   0   0   0   0   0
Lewiston       21  48  26  54  34  58 /   0   0   0   0   0   0
Colville       14  45  19  50  25  55 /   0   0   0   0  10   0
Sandpoint      15  41  20  45  25  49 /   0   0   0   0   0  10
Kellogg        15  40  22  46  28  49 /   0   0   0   0   0  10
Moses Lake     18  49  23  53  32  58 /   0   0   0   0   0   0
Wenatchee      24  50  28  54  34  60 /   0   0   0   0   0   0
Omak           16  48  21  52  28  58 /   0   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 032216
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
215 PM PST TUE MAR 3 2015

.SYNOPSIS...
A weather system will exit the region today, diminishing the
threat of snow showers and gusty winds. Much colder air will move
in behind this system, with temperatures well below average for
the middle of the week. A dry period, with moderating temperature
will follow for the end of the week.


&&

.DISCUSSION...

Tonight through Thursday: Dry and mostly clear conditions dominate
the weather and, after one more cold night, temperatures begin to
warm. Through Wednesday night a ridge of high pressure flops into
the region, littered with some weak mid-level disturbances. Those
disturbances will bring the occasional middle to high clouds but
otherwise dry conditions. The ridge is dampened slightly by
Thursday as a shortwave pushes into British Columbia and a broader
area of high clouds pushes in. Much of the snow that fell Monday
has melted off, but the lack of cloud cover and lighter winds
should still allow for some rather chilly lows Wednesday morning.
Values are expected to be some 10-15 degrees below normal.
Regional temperatures then begin to moderate under the ridge
Wednesday into Thursday, with highs slightly above normal again by
Thursday. There is some potential for patchy fog in some of the
sheltered mountain valleys, especially up toward Stevens and Pend
Oreille and perhaps Boundary county over the next few nights, with
moisture from melting snow allowing for some potential saturation
under bottoming out temperatures. Confidence is low, so it was
left out of the forecast but it will be monitored. /J. Cote`

Thursday night through Tuesday: A ridge of high pressure will
dominate over the region. Some mid to high level clouds are
expected to top over the ridge at times and we may even see a
small chance for a shower over the northern mountains. Otherwise,
the region will remain dry and temperatures will experience a
warming trend. Temperatures are expected to be 10-15 degrees
above normal by early next week. This would translate into our
first 60 degree day of the year for many locations. Models
indicate that the ridge will begin to break down after Tuesday of
next week. This is expected to be the best chance for precip in
the foreseeable future. /SVH

&&

.AVIATION...
00Z TAFS: A ridge of high pressure will build in, with a drier
northerly flow. Minor upper impulses riding in that flow will
produce only a few middle and high clouds over the next 24 hours:
a VFR regime. The lower levels remain dry and winds are expected
to remain at generally at 10kts or less. /J. Cote`


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        18  43  22  48  28  53 /   0   0   0   0   0   0
Coeur d`Alene  15  44  22  49  26  53 /   0   0   0   0   0   0
Pullman        17  44  23  51  32  53 /   0   0   0   0   0   0
Lewiston       21  48  26  54  34  58 /   0   0   0   0   0   0
Colville       14  45  19  50  25  55 /   0   0   0   0  10   0
Sandpoint      15  41  20  45  25  49 /   0   0   0   0   0  10
Kellogg        15  40  22  46  28  49 /   0   0   0   0   0  10
Moses Lake     18  49  23  53  32  58 /   0   0   0   0   0   0
Wenatchee      24  50  28  54  34  60 /   0   0   0   0   0   0
Omak           16  48  21  52  28  58 /   0   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$






000
FXUS66 KOTX 031811
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
1011 AM PST TUE MAR 3 2015

.SYNOPSIS...
A weather system will exit the region today, diminishing the
threat of snow showers and gusty winds. Much colder air will move
in behind this system, with temperatures well below average for
the middle of the week. A dry period, with moderating temperature
will follow for the end of the week.



&&

.DISCUSSION...

Morning update: quieter weather today with the region in a drier
northerly flow. A few clouds linger about the northeast WA and
north ID mountains, closer to the Canadian border, and a few are
found about the Camas Prairie and nearby. Otherwise the day is
mostly clear.

Minor changes to adjust cloud cover, to show it migrating eastward
across the northern Panhandle. I also removed the threat of
isolated snow showers across the northeast mountains or, more
correctly, just changed it to a mention of flurries near the
higher terrain. Nothing big at all.

Temperatures look okay for now, but will have to continue to
monitor to see if it warms a bit more than forecast. Either way, I
don`t think that is adjustments are needed, it would be no more
than two or three degrees. /J. Cote`


&&

.AVIATION...
18Z TAFS: A drier northerly flow, with minor upper impulses riding
in it over a building ridge, will produce only a few middle and
high clouds over the next 24 hours: a VFR regime. The lower
levels remain dry and winds are expected to remain at generally at
10kts or less. /J. Cote`


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        37  17  43  23  48  28 /   0   0   0   0   0   0
Coeur d`Alene  37  15  44  22  49  26 /   0   0   0   0   0   0
Pullman        37  18  44  26  51  32 /   0   0   0   0   0   0
Lewiston       40  20  48  27  54  34 /  10   0   0   0   0   0
Colville       41  16  45  22  50  25 /   0   0   0   0   0  10
Sandpoint      34  13  41  21  45  25 /   0   0   0   0   0   0
Kellogg        32  14  40  23  46  28 /   0   0   0   0   0   0
Moses Lake     44  21  49  26  53  32 /   0   0   0   0   0   0
Wenatchee      45  24  50  31  54  34 /   0   0   0   0   0   0
Omak           45  20  48  25  52  28 /   0   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 031811
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
1011 AM PST TUE MAR 3 2015

.SYNOPSIS...
A weather system will exit the region today, diminishing the
threat of snow showers and gusty winds. Much colder air will move
in behind this system, with temperatures well below average for
the middle of the week. A dry period, with moderating temperature
will follow for the end of the week.



&&

.DISCUSSION...

Morning update: quieter weather today with the region in a drier
northerly flow. A few clouds linger about the northeast WA and
north ID mountains, closer to the Canadian border, and a few are
found about the Camas Prairie and nearby. Otherwise the day is
mostly clear.

Minor changes to adjust cloud cover, to show it migrating eastward
across the northern Panhandle. I also removed the threat of
isolated snow showers across the northeast mountains or, more
correctly, just changed it to a mention of flurries near the
higher terrain. Nothing big at all.

Temperatures look okay for now, but will have to continue to
monitor to see if it warms a bit more than forecast. Either way, I
don`t think that is adjustments are needed, it would be no more
than two or three degrees. /J. Cote`


&&

.AVIATION...
18Z TAFS: A drier northerly flow, with minor upper impulses riding
in it over a building ridge, will produce only a few middle and
high clouds over the next 24 hours: a VFR regime. The lower
levels remain dry and winds are expected to remain at generally at
10kts or less. /J. Cote`


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        37  17  43  23  48  28 /   0   0   0   0   0   0
Coeur d`Alene  37  15  44  22  49  26 /   0   0   0   0   0   0
Pullman        37  18  44  26  51  32 /   0   0   0   0   0   0
Lewiston       40  20  48  27  54  34 /  10   0   0   0   0   0
Colville       41  16  45  22  50  25 /   0   0   0   0   0  10
Sandpoint      34  13  41  21  45  25 /   0   0   0   0   0   0
Kellogg        32  14  40  23  46  28 /   0   0   0   0   0   0
Moses Lake     44  21  49  26  53  32 /   0   0   0   0   0   0
Wenatchee      45  24  50  31  54  34 /   0   0   0   0   0   0
Omak           45  20  48  25  52  28 /   0   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$






000
FXUS66 KOTX 031139
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
339 AM PST TUE MAR 3 2015

.SYNOPSIS...
A weather system will exit the region today, diminishing the
threat of snow showers and gusty winds. Much colder air will move
in behind this system, with temperatures well below average for
the middle of the week. A dry period, with moderating temperature
will follow for the end of the week.


&&

.DISCUSSION...
for this morning...High pressure is building in the eastern
Pacific while a low pressure system digs into Idaho and Montana.
This puts the inland northwest in a dry northerly flow. Some
remnants of the vigorous short wave from last evening as well as
up-sloping flow will keep some low end chance for snow showers
across the Blue mountains and the Camas Prairie early this
morning. Another weak wave is also dropping through BC this
morning. This wave is almost non-existent on models but can be
seen on water vapor imagery. Not much in the way of moisture with
this feature, but enough to hold onto some low end pops for the
northeast mountains early this morning. The northerly surface
pressure gradient is slowly decreasing. There are still some gusty
winds spilling out of the Okanogan valley into the Waterville
Plateau and the basin, but these are expected to subside through
the morning hours.

For this afternoon through Wednesday night...The ridge of high
pressure will ease into the Pacific Northwest tonight and
Wednesday...then flatten late Wednesday and Wednesday night as
another Pacific short wave over tops the ridge. Dry conditions are
expected from this afternoon through Wednesday night. 850
temperatures will bottom out this morning and this afternoon, then
rebound tonight and Wednesday. Temperatures will be 8-12 degrees
below normal through Wednesday morning, before rebounding
Wednesday afternoon to near normal. Expect morning lows ranging
from the lower teens to lower 20s both mornings. Highs will be in
the mid 30s to mid 40s today, then mid 40s to lower 50s on
Wednesday. Winds will be variable and under 10 mph. Tobin

Thursday through Friday night...It looks like the 00Z run of the
ECMWF blinked. Up until this point the EC had been holding firm
onto the trough solution that would bring some precipitation to
the region while the GFS was consistently keeping most precip to
our northeast. Now the EC has trended toward the drier GFS
solution. For now we will keep some low end PoPs in the Idaho
panhandle since the GFS shows a shortwave impulse clipping the
northern panhandle Friday night. Snow levels will be around
3500-4500 ft so the passes could see some light accumulations. The
remainder of the forecast area should remain dry for the end of
the work week. Cold northerly flow will transition to a more
northwest trajectory so temperatures will start to trend closer to
seasonal normals. By Friday night, some of the southern valleys
could remain above freezing overnight.

Saturday through Monday...The ridge of high pressure will remain
over the region, fostering dry conditions with temperatures on a
warming trend. We may see some springlike temperatures for the
weekend. Some moisture will ride along the ridge so there is a low
possibility of some showers but the more likely scenario will be
an increase in mid and high clouds for the end of the weekend and
into the start of next week. /Kelch

&&

.AVIATION...
12Z TAFS: A few snow showers may hang around the Camas Prairie
through 14z...but these should be on the decrease. High pressure
will strengthen off the coast and put the region in a cool but
stable and dry north-northwest flow. Expect mainly sunny days and
cool clear night with VFR conditions at all TAF sites. Winds will
be northerly and under 10kts. Tobin


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        37  17  43  23  48  28 /   0   0   0   0   0   0
Coeur d`Alene  37  15  44  22  49  26 /   0   0   0   0   0   0
Pullman        37  18  44  26  51  32 /   0   0   0   0   0   0
Lewiston       40  20  48  27  54  34 /  10   0   0   0   0   0
Colville       41  16  45  22  50  25 /   0   0   0   0   0  10
Sandpoint      34  13  41  21  45  25 /   0   0   0   0   0   0
Kellogg        32  14  40  23  46  28 /   0   0   0   0   0   0
Moses Lake     44  21  49  26  53  32 /   0   0   0   0   0   0
Wenatchee      45  24  50  31  54  34 /   0   0   0   0   0   0
Omak           45  20  48  25  52  28 /   0   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 031139
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
339 AM PST TUE MAR 3 2015

.SYNOPSIS...
A weather system will exit the region today, diminishing the
threat of snow showers and gusty winds. Much colder air will move
in behind this system, with temperatures well below average for
the middle of the week. A dry period, with moderating temperature
will follow for the end of the week.


&&

.DISCUSSION...
for this morning...High pressure is building in the eastern
Pacific while a low pressure system digs into Idaho and Montana.
This puts the inland northwest in a dry northerly flow. Some
remnants of the vigorous short wave from last evening as well as
up-sloping flow will keep some low end chance for snow showers
across the Blue mountains and the Camas Prairie early this
morning. Another weak wave is also dropping through BC this
morning. This wave is almost non-existent on models but can be
seen on water vapor imagery. Not much in the way of moisture with
this feature, but enough to hold onto some low end pops for the
northeast mountains early this morning. The northerly surface
pressure gradient is slowly decreasing. There are still some gusty
winds spilling out of the Okanogan valley into the Waterville
Plateau and the basin, but these are expected to subside through
the morning hours.

For this afternoon through Wednesday night...The ridge of high
pressure will ease into the Pacific Northwest tonight and
Wednesday...then flatten late Wednesday and Wednesday night as
another Pacific short wave over tops the ridge. Dry conditions are
expected from this afternoon through Wednesday night. 850
temperatures will bottom out this morning and this afternoon, then
rebound tonight and Wednesday. Temperatures will be 8-12 degrees
below normal through Wednesday morning, before rebounding
Wednesday afternoon to near normal. Expect morning lows ranging
from the lower teens to lower 20s both mornings. Highs will be in
the mid 30s to mid 40s today, then mid 40s to lower 50s on
Wednesday. Winds will be variable and under 10 mph. Tobin

Thursday through Friday night...It looks like the 00Z run of the
ECMWF blinked. Up until this point the EC had been holding firm
onto the trough solution that would bring some precipitation to
the region while the GFS was consistently keeping most precip to
our northeast. Now the EC has trended toward the drier GFS
solution. For now we will keep some low end PoPs in the Idaho
panhandle since the GFS shows a shortwave impulse clipping the
northern panhandle Friday night. Snow levels will be around
3500-4500 ft so the passes could see some light accumulations. The
remainder of the forecast area should remain dry for the end of
the work week. Cold northerly flow will transition to a more
northwest trajectory so temperatures will start to trend closer to
seasonal normals. By Friday night, some of the southern valleys
could remain above freezing overnight.

Saturday through Monday...The ridge of high pressure will remain
over the region, fostering dry conditions with temperatures on a
warming trend. We may see some springlike temperatures for the
weekend. Some moisture will ride along the ridge so there is a low
possibility of some showers but the more likely scenario will be
an increase in mid and high clouds for the end of the weekend and
into the start of next week. /Kelch

&&

.AVIATION...
12Z TAFS: A few snow showers may hang around the Camas Prairie
through 14z...but these should be on the decrease. High pressure
will strengthen off the coast and put the region in a cool but
stable and dry north-northwest flow. Expect mainly sunny days and
cool clear night with VFR conditions at all TAF sites. Winds will
be northerly and under 10kts. Tobin


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        37  17  43  23  48  28 /   0   0   0   0   0   0
Coeur d`Alene  37  15  44  22  49  26 /   0   0   0   0   0   0
Pullman        37  18  44  26  51  32 /   0   0   0   0   0   0
Lewiston       40  20  48  27  54  34 /  10   0   0   0   0   0
Colville       41  16  45  22  50  25 /   0   0   0   0   0  10
Sandpoint      34  13  41  21  45  25 /   0   0   0   0   0   0
Kellogg        32  14  40  23  46  28 /   0   0   0   0   0   0
Moses Lake     44  21  49  26  53  32 /   0   0   0   0   0   0
Wenatchee      45  24  50  31  54  34 /   0   0   0   0   0   0
Omak           45  20  48  25  52  28 /   0   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$






000
FXUS66 KOTX 031139
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
339 AM PST TUE MAR 3 2015

.SYNOPSIS...
A weather system will exit the region today, diminishing the
threat of snow showers and gusty winds. Much colder air will move
in behind this system, with temperatures well below average for
the middle of the week. A dry period, with moderating temperature
will follow for the end of the week.


&&

.DISCUSSION...
for this morning...High pressure is building in the eastern
Pacific while a low pressure system digs into Idaho and Montana.
This puts the inland northwest in a dry northerly flow. Some
remnants of the vigorous short wave from last evening as well as
up-sloping flow will keep some low end chance for snow showers
across the Blue mountains and the Camas Prairie early this
morning. Another weak wave is also dropping through BC this
morning. This wave is almost non-existent on models but can be
seen on water vapor imagery. Not much in the way of moisture with
this feature, but enough to hold onto some low end pops for the
northeast mountains early this morning. The northerly surface
pressure gradient is slowly decreasing. There are still some gusty
winds spilling out of the Okanogan valley into the Waterville
Plateau and the basin, but these are expected to subside through
the morning hours.

For this afternoon through Wednesday night...The ridge of high
pressure will ease into the Pacific Northwest tonight and
Wednesday...then flatten late Wednesday and Wednesday night as
another Pacific short wave over tops the ridge. Dry conditions are
expected from this afternoon through Wednesday night. 850
temperatures will bottom out this morning and this afternoon, then
rebound tonight and Wednesday. Temperatures will be 8-12 degrees
below normal through Wednesday morning, before rebounding
Wednesday afternoon to near normal. Expect morning lows ranging
from the lower teens to lower 20s both mornings. Highs will be in
the mid 30s to mid 40s today, then mid 40s to lower 50s on
Wednesday. Winds will be variable and under 10 mph. Tobin

Thursday through Friday night...It looks like the 00Z run of the
ECMWF blinked. Up until this point the EC had been holding firm
onto the trough solution that would bring some precipitation to
the region while the GFS was consistently keeping most precip to
our northeast. Now the EC has trended toward the drier GFS
solution. For now we will keep some low end PoPs in the Idaho
panhandle since the GFS shows a shortwave impulse clipping the
northern panhandle Friday night. Snow levels will be around
3500-4500 ft so the passes could see some light accumulations. The
remainder of the forecast area should remain dry for the end of
the work week. Cold northerly flow will transition to a more
northwest trajectory so temperatures will start to trend closer to
seasonal normals. By Friday night, some of the southern valleys
could remain above freezing overnight.

Saturday through Monday...The ridge of high pressure will remain
over the region, fostering dry conditions with temperatures on a
warming trend. We may see some springlike temperatures for the
weekend. Some moisture will ride along the ridge so there is a low
possibility of some showers but the more likely scenario will be
an increase in mid and high clouds for the end of the weekend and
into the start of next week. /Kelch

&&

.AVIATION...
12Z TAFS: A few snow showers may hang around the Camas Prairie
through 14z...but these should be on the decrease. High pressure
will strengthen off the coast and put the region in a cool but
stable and dry north-northwest flow. Expect mainly sunny days and
cool clear night with VFR conditions at all TAF sites. Winds will
be northerly and under 10kts. Tobin


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        37  17  43  23  48  28 /   0   0   0   0   0   0
Coeur d`Alene  37  15  44  22  49  26 /   0   0   0   0   0   0
Pullman        37  18  44  26  51  32 /   0   0   0   0   0   0
Lewiston       40  20  48  27  54  34 /  10   0   0   0   0   0
Colville       41  16  45  22  50  25 /   0   0   0   0   0  10
Sandpoint      34  13  41  21  45  25 /   0   0   0   0   0   0
Kellogg        32  14  40  23  46  28 /   0   0   0   0   0   0
Moses Lake     44  21  49  26  53  32 /   0   0   0   0   0   0
Wenatchee      45  24  50  31  54  34 /   0   0   0   0   0   0
Omak           45  20  48  25  52  28 /   0   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 031139
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
339 AM PST TUE MAR 3 2015

.SYNOPSIS...
A weather system will exit the region today, diminishing the
threat of snow showers and gusty winds. Much colder air will move
in behind this system, with temperatures well below average for
the middle of the week. A dry period, with moderating temperature
will follow for the end of the week.


&&

.DISCUSSION...
for this morning...High pressure is building in the eastern
Pacific while a low pressure system digs into Idaho and Montana.
This puts the inland northwest in a dry northerly flow. Some
remnants of the vigorous short wave from last evening as well as
up-sloping flow will keep some low end chance for snow showers
across the Blue mountains and the Camas Prairie early this
morning. Another weak wave is also dropping through BC this
morning. This wave is almost non-existent on models but can be
seen on water vapor imagery. Not much in the way of moisture with
this feature, but enough to hold onto some low end pops for the
northeast mountains early this morning. The northerly surface
pressure gradient is slowly decreasing. There are still some gusty
winds spilling out of the Okanogan valley into the Waterville
Plateau and the basin, but these are expected to subside through
the morning hours.

For this afternoon through Wednesday night...The ridge of high
pressure will ease into the Pacific Northwest tonight and
Wednesday...then flatten late Wednesday and Wednesday night as
another Pacific short wave over tops the ridge. Dry conditions are
expected from this afternoon through Wednesday night. 850
temperatures will bottom out this morning and this afternoon, then
rebound tonight and Wednesday. Temperatures will be 8-12 degrees
below normal through Wednesday morning, before rebounding
Wednesday afternoon to near normal. Expect morning lows ranging
from the lower teens to lower 20s both mornings. Highs will be in
the mid 30s to mid 40s today, then mid 40s to lower 50s on
Wednesday. Winds will be variable and under 10 mph. Tobin

Thursday through Friday night...It looks like the 00Z run of the
ECMWF blinked. Up until this point the EC had been holding firm
onto the trough solution that would bring some precipitation to
the region while the GFS was consistently keeping most precip to
our northeast. Now the EC has trended toward the drier GFS
solution. For now we will keep some low end PoPs in the Idaho
panhandle since the GFS shows a shortwave impulse clipping the
northern panhandle Friday night. Snow levels will be around
3500-4500 ft so the passes could see some light accumulations. The
remainder of the forecast area should remain dry for the end of
the work week. Cold northerly flow will transition to a more
northwest trajectory so temperatures will start to trend closer to
seasonal normals. By Friday night, some of the southern valleys
could remain above freezing overnight.

Saturday through Monday...The ridge of high pressure will remain
over the region, fostering dry conditions with temperatures on a
warming trend. We may see some springlike temperatures for the
weekend. Some moisture will ride along the ridge so there is a low
possibility of some showers but the more likely scenario will be
an increase in mid and high clouds for the end of the weekend and
into the start of next week. /Kelch

&&

.AVIATION...
12Z TAFS: A few snow showers may hang around the Camas Prairie
through 14z...but these should be on the decrease. High pressure
will strengthen off the coast and put the region in a cool but
stable and dry north-northwest flow. Expect mainly sunny days and
cool clear night with VFR conditions at all TAF sites. Winds will
be northerly and under 10kts. Tobin


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        37  17  43  23  48  28 /   0   0   0   0   0   0
Coeur d`Alene  37  15  44  22  49  26 /   0   0   0   0   0   0
Pullman        37  18  44  26  51  32 /   0   0   0   0   0   0
Lewiston       40  20  48  27  54  34 /  10   0   0   0   0   0
Colville       41  16  45  22  50  25 /   0   0   0   0   0  10
Sandpoint      34  13  41  21  45  25 /   0   0   0   0   0   0
Kellogg        32  14  40  23  46  28 /   0   0   0   0   0   0
Moses Lake     44  21  49  26  53  32 /   0   0   0   0   0   0
Wenatchee      45  24  50  31  54  34 /   0   0   0   0   0   0
Omak           45  20  48  25  52  28 /   0   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$






000
FXUS66 KOTX 031026
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
226 AM PST TUE MAR 3 2015

.SYNOPSIS...
A weather system will exit the region today, diminishing the
threat of snow showers and gusty winds. Much colder air will move
in behind this system, with temperatures well below average for
the middle of the week. A dry period, with moderating temperature
will follow for the end of the week.


&&

.DISCUSSION...
for this morning...High pressure is building in the eastern
Pacific while a low pressure system digs into Idaho and Montana.
This puts the inland northwest in a dry northerly flow. Some
remnants of the vigorous short wave from last evening as well as
up-sloping flow will keep some low end chance for snow showers
across the Blue mountains and the Camas Prairie early this
morning. Another weak wave is also dropping through BC this
morning. This wave is almost non-exsistent on models but can be
seen on water vapor imagery. Not much in the way of moisture with
this feature, but enough to hold onto some low end pops for the
northeast mountains early this morning. The northerly surface
pressure gradient is slowly decreasing. There are still some gusty
winds spilling out of the Okanogan valley into the Waterville
Plateau and the basin, but these are expected to subside through
the morning hours.

For this afternoon through Wednesday night...The ridge of high
pressure will ease into the Pacific Northwest tonight and
Wednesday...then flatten late Wednesday and Wednesday night as
another Pacific short wave over tops the ridge. Dry conditions are
expected from this afternoon through Wednesday night. 850
temperatures will bottom out this morning and this afternoon, then
rebound tonight and Wednesday. Temperatures will be 8-12 degrees
below normal through Wednesday morning, before rebounding
Wednesday afternoon to near normal. Expect morning lows ranging
from the lower teens to lower 20s both mornings. Highs will be in
the mid 30s to mid 40s today, then mid 40s to lower 50s on
Wednesday. Winds will be variable and under 10 mph. Tobin

Thursday through Friday night...It looks like the 00Z run of the
ECMWF blinked. Up until this point the EC had been holding firm
onto the trough solution that would bring some precipitation to
the region while the GFS was consistently keeping most precip to
our northeast. Now the EC has trended toward the drier GFS
solution. For now we will keep some low end PoPs in the Idaho
panhandle since the GFS shows a shortwave impulse clipping the
northern panhandle Friday night. Snow levels will be around
3500-4500 ft so the passes could see some light accumulations. The
remainder of the forecast area should remain dry for the end of
the work week. Cold northerly flow will transition to a more
northwest trajectory so temperatures will start to trend closer to
seasonal normals. By Friday night, some of the southern valleys
could remain above freezing overnight.

Saturday through Monday...The ridge of high pressure will remain
over the region, fostering dry conditions with temperatures on a
warming trend. We may see some springlike temperatures for the
weekend. Some moisture will ride along the ridge so there is a low
possibility of some showers but the more likely scenario will be
an increase in mid and high clouds for the end of the weekend and
into the start of next week. /Kelch

&&

.AVIATION...
06Z TAFS: Snow showers bringing spotty IFR ceilings and
visibilities on the decrease this evening and should end and/or
move out of the area tonight. Other issue of note is the brisk and
gusty northerly winds moving into the area behind the disturbance
that brought the snow showers. All will move out of the area
tonight and wind should decrease tomorrow with the expectation that
VFR conditions will prevail tomorrow. /Pelatti


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        37  17  43  23  48  28 /   0   0   0   0   0   0
Coeur d`Alene  37  15  44  22  49  26 /   0   0   0   0   0   0
Pullman        37  18  44  26  51  32 /   0   0   0   0   0   0
Lewiston       40  20  48  27  54  34 /  10   0   0   0   0   0
Colville       41  16  45  22  50  25 /   0   0   0   0   0  10
Sandpoint      34  13  41  21  45  25 /   0   0   0   0   0   0
Kellogg        32  14  40  23  46  28 /   0   0   0   0   0   0
Moses Lake     44  21  49  26  53  32 /   0   0   0   0   0   0
Wenatchee      45  24  50  31  54  34 /   0   0   0   0   0   0
Omak           45  20  48  25  52  28 /   0   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 031026
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
226 AM PST TUE MAR 3 2015

.SYNOPSIS...
A weather system will exit the region today, diminishing the
threat of snow showers and gusty winds. Much colder air will move
in behind this system, with temperatures well below average for
the middle of the week. A dry period, with moderating temperature
will follow for the end of the week.


&&

.DISCUSSION...
for this morning...High pressure is building in the eastern
Pacific while a low pressure system digs into Idaho and Montana.
This puts the inland northwest in a dry northerly flow. Some
remnants of the vigorous short wave from last evening as well as
up-sloping flow will keep some low end chance for snow showers
across the Blue mountains and the Camas Prairie early this
morning. Another weak wave is also dropping through BC this
morning. This wave is almost non-exsistent on models but can be
seen on water vapor imagery. Not much in the way of moisture with
this feature, but enough to hold onto some low end pops for the
northeast mountains early this morning. The northerly surface
pressure gradient is slowly decreasing. There are still some gusty
winds spilling out of the Okanogan valley into the Waterville
Plateau and the basin, but these are expected to subside through
the morning hours.

For this afternoon through Wednesday night...The ridge of high
pressure will ease into the Pacific Northwest tonight and
Wednesday...then flatten late Wednesday and Wednesday night as
another Pacific short wave over tops the ridge. Dry conditions are
expected from this afternoon through Wednesday night. 850
temperatures will bottom out this morning and this afternoon, then
rebound tonight and Wednesday. Temperatures will be 8-12 degrees
below normal through Wednesday morning, before rebounding
Wednesday afternoon to near normal. Expect morning lows ranging
from the lower teens to lower 20s both mornings. Highs will be in
the mid 30s to mid 40s today, then mid 40s to lower 50s on
Wednesday. Winds will be variable and under 10 mph. Tobin

Thursday through Friday night...It looks like the 00Z run of the
ECMWF blinked. Up until this point the EC had been holding firm
onto the trough solution that would bring some precipitation to
the region while the GFS was consistently keeping most precip to
our northeast. Now the EC has trended toward the drier GFS
solution. For now we will keep some low end PoPs in the Idaho
panhandle since the GFS shows a shortwave impulse clipping the
northern panhandle Friday night. Snow levels will be around
3500-4500 ft so the passes could see some light accumulations. The
remainder of the forecast area should remain dry for the end of
the work week. Cold northerly flow will transition to a more
northwest trajectory so temperatures will start to trend closer to
seasonal normals. By Friday night, some of the southern valleys
could remain above freezing overnight.

Saturday through Monday...The ridge of high pressure will remain
over the region, fostering dry conditions with temperatures on a
warming trend. We may see some springlike temperatures for the
weekend. Some moisture will ride along the ridge so there is a low
possibility of some showers but the more likely scenario will be
an increase in mid and high clouds for the end of the weekend and
into the start of next week. /Kelch

&&

.AVIATION...
06Z TAFS: Snow showers bringing spotty IFR ceilings and
visibilities on the decrease this evening and should end and/or
move out of the area tonight. Other issue of note is the brisk and
gusty northerly winds moving into the area behind the disturbance
that brought the snow showers. All will move out of the area
tonight and wind should decrease tomorrow with the expectation that
VFR conditions will prevail tomorrow. /Pelatti


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        37  17  43  23  48  28 /   0   0   0   0   0   0
Coeur d`Alene  37  15  44  22  49  26 /   0   0   0   0   0   0
Pullman        37  18  44  26  51  32 /   0   0   0   0   0   0
Lewiston       40  20  48  27  54  34 /  10   0   0   0   0   0
Colville       41  16  45  22  50  25 /   0   0   0   0   0  10
Sandpoint      34  13  41  21  45  25 /   0   0   0   0   0   0
Kellogg        32  14  40  23  46  28 /   0   0   0   0   0   0
Moses Lake     44  21  49  26  53  32 /   0   0   0   0   0   0
Wenatchee      45  24  50  31  54  34 /   0   0   0   0   0   0
Omak           45  20  48  25  52  28 /   0   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 031026
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
226 AM PST TUE MAR 3 2015

.SYNOPSIS...
A weather system will exit the region today, diminishing the
threat of snow showers and gusty winds. Much colder air will move
in behind this system, with temperatures well below average for
the middle of the week. A dry period, with moderating temperature
will follow for the end of the week.


&&

.DISCUSSION...
for this morning...High pressure is building in the eastern
Pacific while a low pressure system digs into Idaho and Montana.
This puts the inland northwest in a dry northerly flow. Some
remnants of the vigorous short wave from last evening as well as
up-sloping flow will keep some low end chance for snow showers
across the Blue mountains and the Camas Prairie early this
morning. Another weak wave is also dropping through BC this
morning. This wave is almost non-exsistent on models but can be
seen on water vapor imagery. Not much in the way of moisture with
this feature, but enough to hold onto some low end pops for the
northeast mountains early this morning. The northerly surface
pressure gradient is slowly decreasing. There are still some gusty
winds spilling out of the Okanogan valley into the Waterville
Plateau and the basin, but these are expected to subside through
the morning hours.

For this afternoon through Wednesday night...The ridge of high
pressure will ease into the Pacific Northwest tonight and
Wednesday...then flatten late Wednesday and Wednesday night as
another Pacific short wave over tops the ridge. Dry conditions are
expected from this afternoon through Wednesday night. 850
temperatures will bottom out this morning and this afternoon, then
rebound tonight and Wednesday. Temperatures will be 8-12 degrees
below normal through Wednesday morning, before rebounding
Wednesday afternoon to near normal. Expect morning lows ranging
from the lower teens to lower 20s both mornings. Highs will be in
the mid 30s to mid 40s today, then mid 40s to lower 50s on
Wednesday. Winds will be variable and under 10 mph. Tobin

Thursday through Friday night...It looks like the 00Z run of the
ECMWF blinked. Up until this point the EC had been holding firm
onto the trough solution that would bring some precipitation to
the region while the GFS was consistently keeping most precip to
our northeast. Now the EC has trended toward the drier GFS
solution. For now we will keep some low end PoPs in the Idaho
panhandle since the GFS shows a shortwave impulse clipping the
northern panhandle Friday night. Snow levels will be around
3500-4500 ft so the passes could see some light accumulations. The
remainder of the forecast area should remain dry for the end of
the work week. Cold northerly flow will transition to a more
northwest trajectory so temperatures will start to trend closer to
seasonal normals. By Friday night, some of the southern valleys
could remain above freezing overnight.

Saturday through Monday...The ridge of high pressure will remain
over the region, fostering dry conditions with temperatures on a
warming trend. We may see some springlike temperatures for the
weekend. Some moisture will ride along the ridge so there is a low
possibility of some showers but the more likely scenario will be
an increase in mid and high clouds for the end of the weekend and
into the start of next week. /Kelch

&&

.AVIATION...
06Z TAFS: Snow showers bringing spotty IFR ceilings and
visibilities on the decrease this evening and should end and/or
move out of the area tonight. Other issue of note is the brisk and
gusty northerly winds moving into the area behind the disturbance
that brought the snow showers. All will move out of the area
tonight and wind should decrease tomorrow with the expectation that
VFR conditions will prevail tomorrow. /Pelatti


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        37  17  43  23  48  28 /   0   0   0   0   0   0
Coeur d`Alene  37  15  44  22  49  26 /   0   0   0   0   0   0
Pullman        37  18  44  26  51  32 /   0   0   0   0   0   0
Lewiston       40  20  48  27  54  34 /  10   0   0   0   0   0
Colville       41  16  45  22  50  25 /   0   0   0   0   0  10
Sandpoint      34  13  41  21  45  25 /   0   0   0   0   0   0
Kellogg        32  14  40  23  46  28 /   0   0   0   0   0   0
Moses Lake     44  21  49  26  53  32 /   0   0   0   0   0   0
Wenatchee      45  24  50  31  54  34 /   0   0   0   0   0   0
Omak           45  20  48  25  52  28 /   0   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$






000
FXUS66 KOTX 030539
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
938 PM PST MON MAR 2 2015

.SYNOPSIS...
A weather system will pass through this evening, with potential
for scattered snow showers along with breezy conditions across
much of the region. The snow shower threat and winds abate
overnight into Tuesday.  Much colder air moves in behind this
system, with temperatures well below average for the middle of the
week. A dry period, with moderating temperature will follow for
the end of the week.



&&

.DISCUSSION...
Snow showers are on the decrease both in intensity and coverage
per recent radar. Some of the locations that received snow from
the most intense snow showers or multiple snow showers were able
to produce localized accumulations as much as 3-4 inches, with
many locations in between showers that received little to no snow.
Brisk and gusty northerly wind remain in the wake of the
disturbance passage and will blow overnight but subside through
the day tomorrow. More grid adjustments may be necessary but text
based forecasts seem to be handling the current trend and may be
updated once the snow showers are over. /Pelatti

&&

.AVIATION...
06Z TAFS: Snow showers bringing spotty IFR ceilings and
visibilities on the decrease this evening and should end and/or
move out of the area tonight. Other issue of note is the brisk and
gusty northerly winds moving into the area behind the disturbance
that brought the snow showers. All will move out of the area
tonight and wind should decrease tomorrow with the expecation that
VFR conditions will prevail tomorrow. /Pelatti

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        18  37  17  43  23  48 /  10   0   0   0   0   0
Coeur d`Alene  16  37  14  43  21  49 /  10   0   0   0   0   0
Pullman        18  37  17  43  26  51 /  10   0   0   0   0   0
Lewiston       26  40  20  47  27  54 /  10  10   0   0   0   0
Colville       21  41  16  45  22  50 /  20   0   0   0   0   0
Sandpoint      17  34  12  41  21  44 /  10   0   0   0   0   0
Kellogg        17  32  13  40  22  45 /  20   0   0   0   0   0
Moses Lake     22  44  20  48  26  53 /   0   0   0   0   0   0
Wenatchee      27  45  20  50  29  54 /   0   0   0   0   0   0
Omak           22  45  19  47  24  52 /   0   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 030539
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
938 PM PST MON MAR 2 2015

.SYNOPSIS...
A weather system will pass through this evening, with potential
for scattered snow showers along with breezy conditions across
much of the region. The snow shower threat and winds abate
overnight into Tuesday.  Much colder air moves in behind this
system, with temperatures well below average for the middle of the
week. A dry period, with moderating temperature will follow for
the end of the week.



&&

.DISCUSSION...
Snow showers are on the decrease both in intensity and coverage
per recent radar. Some of the locations that received snow from
the most intense snow showers or multiple snow showers were able
to produce localized accumulations as much as 3-4 inches, with
many locations in between showers that received little to no snow.
Brisk and gusty northerly wind remain in the wake of the
disturbance passage and will blow overnight but subside through
the day tomorrow. More grid adjustments may be necessary but text
based forecasts seem to be handling the current trend and may be
updated once the snow showers are over. /Pelatti

&&

.AVIATION...
06Z TAFS: Snow showers bringing spotty IFR ceilings and
visibilities on the decrease this evening and should end and/or
move out of the area tonight. Other issue of note is the brisk and
gusty northerly winds moving into the area behind the disturbance
that brought the snow showers. All will move out of the area
tonight and wind should decrease tomorrow with the expecation that
VFR conditions will prevail tomorrow. /Pelatti

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        18  37  17  43  23  48 /  10   0   0   0   0   0
Coeur d`Alene  16  37  14  43  21  49 /  10   0   0   0   0   0
Pullman        18  37  17  43  26  51 /  10   0   0   0   0   0
Lewiston       26  40  20  47  27  54 /  10  10   0   0   0   0
Colville       21  41  16  45  22  50 /  20   0   0   0   0   0
Sandpoint      17  34  12  41  21  44 /  10   0   0   0   0   0
Kellogg        17  32  13  40  22  45 /  20   0   0   0   0   0
Moses Lake     22  44  20  48  26  53 /   0   0   0   0   0   0
Wenatchee      27  45  20  50  29  54 /   0   0   0   0   0   0
Omak           22  45  19  47  24  52 /   0   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$






000
FXUS66 KOTX 030539
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
938 PM PST MON MAR 2 2015

.SYNOPSIS...
A weather system will pass through this evening, with potential
for scattered snow showers along with breezy conditions across
much of the region. The snow shower threat and winds abate
overnight into Tuesday.  Much colder air moves in behind this
system, with temperatures well below average for the middle of the
week. A dry period, with moderating temperature will follow for
the end of the week.



&&

.DISCUSSION...
Snow showers are on the decrease both in intensity and coverage
per recent radar. Some of the locations that received snow from
the most intense snow showers or multiple snow showers were able
to produce localized accumulations as much as 3-4 inches, with
many locations in between showers that received little to no snow.
Brisk and gusty northerly wind remain in the wake of the
disturbance passage and will blow overnight but subside through
the day tomorrow. More grid adjustments may be necessary but text
based forecasts seem to be handling the current trend and may be
updated once the snow showers are over. /Pelatti

&&

.AVIATION...
06Z TAFS: Snow showers bringing spotty IFR ceilings and
visibilities on the decrease this evening and should end and/or
move out of the area tonight. Other issue of note is the brisk and
gusty northerly winds moving into the area behind the disturbance
that brought the snow showers. All will move out of the area
tonight and wind should decrease tomorrow with the expecation that
VFR conditions will prevail tomorrow. /Pelatti

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        18  37  17  43  23  48 /  10   0   0   0   0   0
Coeur d`Alene  16  37  14  43  21  49 /  10   0   0   0   0   0
Pullman        18  37  17  43  26  51 /  10   0   0   0   0   0
Lewiston       26  40  20  47  27  54 /  10  10   0   0   0   0
Colville       21  41  16  45  22  50 /  20   0   0   0   0   0
Sandpoint      17  34  12  41  21  44 /  10   0   0   0   0   0
Kellogg        17  32  13  40  22  45 /  20   0   0   0   0   0
Moses Lake     22  44  20  48  26  53 /   0   0   0   0   0   0
Wenatchee      27  45  20  50  29  54 /   0   0   0   0   0   0
Omak           22  45  19  47  24  52 /   0   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 030539
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
938 PM PST MON MAR 2 2015

.SYNOPSIS...
A weather system will pass through this evening, with potential
for scattered snow showers along with breezy conditions across
much of the region. The snow shower threat and winds abate
overnight into Tuesday.  Much colder air moves in behind this
system, with temperatures well below average for the middle of the
week. A dry period, with moderating temperature will follow for
the end of the week.



&&

.DISCUSSION...
Snow showers are on the decrease both in intensity and coverage
per recent radar. Some of the locations that received snow from
the most intense snow showers or multiple snow showers were able
to produce localized accumulations as much as 3-4 inches, with
many locations in between showers that received little to no snow.
Brisk and gusty northerly wind remain in the wake of the
disturbance passage and will blow overnight but subside through
the day tomorrow. More grid adjustments may be necessary but text
based forecasts seem to be handling the current trend and may be
updated once the snow showers are over. /Pelatti

&&

.AVIATION...
06Z TAFS: Snow showers bringing spotty IFR ceilings and
visibilities on the decrease this evening and should end and/or
move out of the area tonight. Other issue of note is the brisk and
gusty northerly winds moving into the area behind the disturbance
that brought the snow showers. All will move out of the area
tonight and wind should decrease tomorrow with the expecation that
VFR conditions will prevail tomorrow. /Pelatti

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        18  37  17  43  23  48 /  10   0   0   0   0   0
Coeur d`Alene  16  37  14  43  21  49 /  10   0   0   0   0   0
Pullman        18  37  17  43  26  51 /  10   0   0   0   0   0
Lewiston       26  40  20  47  27  54 /  10  10   0   0   0   0
Colville       21  41  16  45  22  50 /  20   0   0   0   0   0
Sandpoint      17  34  12  41  21  44 /  10   0   0   0   0   0
Kellogg        17  32  13  40  22  45 /  20   0   0   0   0   0
Moses Lake     22  44  20  48  26  53 /   0   0   0   0   0   0
Wenatchee      27  45  20  50  29  54 /   0   0   0   0   0   0
Omak           22  45  19  47  24  52 /   0   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$






000
FXUS66 KOTX 030302
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
702 PM PST MON MAR 2 2015

.SYNOPSIS...
A weather system will pass through this evening, with potential
for scattered snow showers along with breezy conditions across
much of the region. The snow shower threat and winds abate
overnight into Tuesday.  Much colder air moves in behind this
system, with temperatures well below average for the middle of the
week. A dry period, with moderating temperature will follow for
the end of the week.


&&

.DISCUSSION...
Updates to zones and grids to better address the localized snow
accumulations associated with the convective showers moving south
at about 25 mph through Eastern Washington and parts of North
Idaho right now. They are all associated with peak heating of the
evening and a shortwave dropping down through the area which is
quite visible as a small localized area of rotation on the water
vapor channel. Some webcams and spotters have noted they have
received up to two inches of snow under the more heavier snow
showers and/or have been hit with more than one snow shower this
evening. Zones have better wording to address this and note that
the trend is for all the convective snow showers to decrease
overnight. Potential additional impacts brought about by this snow
would be refreezing of any lingering snowmelt on roadways tonight
which could result in slick conditions later on tonight and into
Tuesday morning.  /Pelatti


&&

.AVIATION...
00Z TAFS: A shortwave will drop south across the east WA/north ID
between 00-06Z, with scattered snow showers. With unstable lapses
accompanying these some of these could be locally heavy, producing
brief reductions to MVFR conditions, especially around
GEG/SFF/COE. They will be more isolated toward PUW/LWS. The threat
will wane after 03-04Z over most locations, but could some
potential may linger through 08Z. EAT/MWH will mainly dry, with
only the off chance of a flurry. Otherwise look for VFR conditions
here. Expect breezy conditions around 15 to 25kts, with gusts to
30 around MWH. Other breezy conditions are expected at EAT, as
well as GEG to COE with the incoming shortwave. However speeds
will be a bit less, at 10 to 20kts. Speeds in general will abate
after 08-11Z. /J. Cote`



&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        18  37  17  43  23  48 /  50   0   0   0   0   0
Coeur d`Alene  16  37  14  43  21  49 /  50   0   0   0   0   0
Pullman        18  37  17  43  26  51 /  50   0   0   0   0   0
Lewiston       26  40  20  47  27  54 /  30  10   0   0   0   0
Colville       21  41  16  45  22  50 /  50   0   0   0   0   0
Sandpoint      17  34  12  41  21  44 /  50   0   0   0   0   0
Kellogg        17  32  13  40  22  45 /  70   0   0   0   0   0
Moses Lake     22  44  20  48  26  53 /  10   0   0   0   0   0
Wenatchee      27  45  20  50  29  54 /   0   0   0   0   0   0
Omak           22  45  19  47  24  52 /   0   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 022343
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
343 PM PST MON MAR 2 2015

.SYNOPSIS...
A weather system will pass through this evening, with potential
for scattered snow showers along with breezy conditions across
much of the region. The snow shower threat and winds abate
overnight into Tuesday.  Much colder air moves in behind this
system, with temperatures well below average for the middle of the
week. A dry period, with moderating temperature will follow for
the end of the week.

&&

.DISCUSSION...

Tonight and Tuesday: The snow shower threat will dissipate
across the Inland NW tonight on a breezy north wind, leading to a
drier and colder Tuesday. This evening a mid-level shortwave is
tracking across the eastern third of WA and north ID; it is
projected to sag toward central and southern ID late this evening
into the overnight. As that shortwave tracks by us it is
accompanied by a pool of colder 500mb temperatures, in the -30 to
-35 C range. This leads to some unstable lapse rates and so the
accompanying potential for convective showers. Furthermore, a
deformation axis/surface trough lingers across the eastern third
of WA through the night, though it does lose some of its
resolution overnight.

All of this means a threat of scattered to locally numerous snow
showers through, especially early this evening, between 00-04Z (4
to 8 PM), before the drier northerly flow take hold and the
precipitation threat begins to wind down. The deformation
axis/trough itself should help to focus those showers and right
now that been somewhat consistently across northeast mountain and
Spokane/C`dA area.

The convective nature of the system makes pinning down the
precise snow accumulations difficult in the valleys. Values could
range from nothing or a trace to as much as 1 inch or so under the
heaviest bands. The road and air temperatures, however, should
keep the snow from sticking to the roads and other surfaces
initially. However later this evening and overnight any
precipitation that falls would have every opportunity to freeze on
surface. How much of an impact that would have later this evening
and for the Tuesday morning commute is less certain, because areas
that would see little to no accumulation may have no problems but
if you happen to be that spot that gets more precipitation you be
more prone to slick spots. As for the mountains, snow amounts
could be in the 1 to 3 inch range, when all is said and done for
the entire system, with isolated higher amounts.

Late this evening and overnight, the main shower threat is
expected to shift toward the Central Panhandle and Camas Prairie,
and possibly the Blues. A secondary threat will linger within the
northeastern mountains, with a weak secondary wave dropping by and
the weakening deformation axis in the region. Tuesday looks mainly
dry and partly cloudy to clear.

Winds will be an issue this evening with the shortwave pushing in
coupling with a tightening pressure gradients. The strongest winds
are expected through the Okanogan Valley, where some channeling is
expected. However speeds will also be up across the remainder of
eastern WA and the north ID valleys. On average we are looking for
10 to 20 mph, with gusts to 30 mph. However in the Okanogan
Valley speeds of 15 to 30 mph with gusts to 40 mph are possible.
Going into the overnight and Tuesday the gradients begin to
slacken and the atmosphere decouples, so overall speeds should
begin to abate.

Temperatures tonight are expected to drop below normal thanks to
the push of colder, drier air from the north. Values could be some
10 or so degrees below average. This carries into Tuesday
afternoon with highs expected to remain below normal by 5 to 10
degrees. /J. Cote`

Tuesday night through Monday: A ridge of high pressure will be the
dominate weather feature through the period delivering mostly dry
conditions and a gradual warming trend. The only exception is
within the Friday time-frame. Models suggest the ridge will
flatten enough allowing a weak disturbance to skirt the
International Border before dropping southeast down the MT/ID
border. The ECMWF is an outlier at this time indicating the
potential for a tenth or so of liquid while the GFS/Canadian/Ensemble
Means only bring through trace amounts of liquid. Needless to say,
confidence is low regarding this feature and precipitation chances
but this looks to be the only chance for precipitation through
Monday. Temperatures will start off cool with 850mb temperatures
on the order of -5C but warm near 3-8C by the weekend. This will
equate to warming temperatures each day with temperatures expected
to warm well above normal by the weekend.

There are signs in the extended models that a large scale pattern
change will be possible which features the reversal of the Eastern
US trough and Western Ridge. There are some timing differences but
looks to occur around mid to late next week. Climate Prediction
Center looks to favor this change as well with the 8-14 day
outlook predicting the potential for warmer and wetter conditions
on the West Coast... conducive of the incoming trof and
mild/wetter southwest flow. /sb



&&

.AVIATION...
00Z TAFS: A shortwave will drop south across the east WA/north ID
between 00-06Z, with scattered snow showers. With unstable lapses
accompanying these some of these could be locally heavy, producing
brief reductions to MVFR conditions, especially around
GEG/SFF/COE. They will be more isolated toward PUW/LWS. The threat
will wane after 03-04Z over most locations, but could some
potential may linger through 08Z. EAT/MWH will mainly dry, with
only the off chance of a flurry. Otherwise look for VFR conditions
here. Expect breezy conditions around 15 to 25kts, with gusts to
30 around MWH. Other breezy conditions are expected at EAT, as
well as GEG to COE with the incoming shortwave. However speeds
will be a bit less, at 10 to 20kts. Speeds in general will abate
after 08-11Z. /J. Cote`


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        18  37  17  43  23  48 /  50   0   0   0   0   0
Coeur d`Alene  16  37  14  43  21  49 /  50   0   0   0   0   0
Pullman        18  37  17  43  26  51 /  30   0   0   0   0   0
Lewiston       26  40  20  47  27  54 /  20  10   0   0   0   0
Colville       21  41  16  45  22  50 /  50   0   0   0   0   0
Sandpoint      17  34  12  41  21  44 /  50   0   0   0   0   0
Kellogg        17  32  13  40  22  45 /  70   0   0   0   0   0
Moses Lake     22  44  20  48  26  53 /  10   0   0   0   0   0
Wenatchee      27  45  20  50  29  54 /   0   0   0   0   0   0
Omak           22  45  19  47  24  52 /   0   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 022343
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
343 PM PST MON MAR 2 2015

.SYNOPSIS...
A weather system will pass through this evening, with potential
for scattered snow showers along with breezy conditions across
much of the region. The snow shower threat and winds abate
overnight into Tuesday.  Much colder air moves in behind this
system, with temperatures well below average for the middle of the
week. A dry period, with moderating temperature will follow for
the end of the week.

&&

.DISCUSSION...

Tonight and Tuesday: The snow shower threat will dissipate
across the Inland NW tonight on a breezy north wind, leading to a
drier and colder Tuesday. This evening a mid-level shortwave is
tracking across the eastern third of WA and north ID; it is
projected to sag toward central and southern ID late this evening
into the overnight. As that shortwave tracks by us it is
accompanied by a pool of colder 500mb temperatures, in the -30 to
-35 C range. This leads to some unstable lapse rates and so the
accompanying potential for convective showers. Furthermore, a
deformation axis/surface trough lingers across the eastern third
of WA through the night, though it does lose some of its
resolution overnight.

All of this means a threat of scattered to locally numerous snow
showers through, especially early this evening, between 00-04Z (4
to 8 PM), before the drier northerly flow take hold and the
precipitation threat begins to wind down. The deformation
axis/trough itself should help to focus those showers and right
now that been somewhat consistently across northeast mountain and
Spokane/C`dA area.

The convective nature of the system makes pinning down the
precise snow accumulations difficult in the valleys. Values could
range from nothing or a trace to as much as 1 inch or so under the
heaviest bands. The road and air temperatures, however, should
keep the snow from sticking to the roads and other surfaces
initially. However later this evening and overnight any
precipitation that falls would have every opportunity to freeze on
surface. How much of an impact that would have later this evening
and for the Tuesday morning commute is less certain, because areas
that would see little to no accumulation may have no problems but
if you happen to be that spot that gets more precipitation you be
more prone to slick spots. As for the mountains, snow amounts
could be in the 1 to 3 inch range, when all is said and done for
the entire system, with isolated higher amounts.

Late this evening and overnight, the main shower threat is
expected to shift toward the Central Panhandle and Camas Prairie,
and possibly the Blues. A secondary threat will linger within the
northeastern mountains, with a weak secondary wave dropping by and
the weakening deformation axis in the region. Tuesday looks mainly
dry and partly cloudy to clear.

Winds will be an issue this evening with the shortwave pushing in
coupling with a tightening pressure gradients. The strongest winds
are expected through the Okanogan Valley, where some channeling is
expected. However speeds will also be up across the remainder of
eastern WA and the north ID valleys. On average we are looking for
10 to 20 mph, with gusts to 30 mph. However in the Okanogan
Valley speeds of 15 to 30 mph with gusts to 40 mph are possible.
Going into the overnight and Tuesday the gradients begin to
slacken and the atmosphere decouples, so overall speeds should
begin to abate.

Temperatures tonight are expected to drop below normal thanks to
the push of colder, drier air from the north. Values could be some
10 or so degrees below average. This carries into Tuesday
afternoon with highs expected to remain below normal by 5 to 10
degrees. /J. Cote`

Tuesday night through Monday: A ridge of high pressure will be the
dominate weather feature through the period delivering mostly dry
conditions and a gradual warming trend. The only exception is
within the Friday time-frame. Models suggest the ridge will
flatten enough allowing a weak disturbance to skirt the
International Border before dropping southeast down the MT/ID
border. The ECMWF is an outlier at this time indicating the
potential for a tenth or so of liquid while the GFS/Canadian/Ensemble
Means only bring through trace amounts of liquid. Needless to say,
confidence is low regarding this feature and precipitation chances
but this looks to be the only chance for precipitation through
Monday. Temperatures will start off cool with 850mb temperatures
on the order of -5C but warm near 3-8C by the weekend. This will
equate to warming temperatures each day with temperatures expected
to warm well above normal by the weekend.

There are signs in the extended models that a large scale pattern
change will be possible which features the reversal of the Eastern
US trough and Western Ridge. There are some timing differences but
looks to occur around mid to late next week. Climate Prediction
Center looks to favor this change as well with the 8-14 day
outlook predicting the potential for warmer and wetter conditions
on the West Coast... conducive of the incoming trof and
mild/wetter southwest flow. /sb



&&

.AVIATION...
00Z TAFS: A shortwave will drop south across the east WA/north ID
between 00-06Z, with scattered snow showers. With unstable lapses
accompanying these some of these could be locally heavy, producing
brief reductions to MVFR conditions, especially around
GEG/SFF/COE. They will be more isolated toward PUW/LWS. The threat
will wane after 03-04Z over most locations, but could some
potential may linger through 08Z. EAT/MWH will mainly dry, with
only the off chance of a flurry. Otherwise look for VFR conditions
here. Expect breezy conditions around 15 to 25kts, with gusts to
30 around MWH. Other breezy conditions are expected at EAT, as
well as GEG to COE with the incoming shortwave. However speeds
will be a bit less, at 10 to 20kts. Speeds in general will abate
after 08-11Z. /J. Cote`


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        18  37  17  43  23  48 /  50   0   0   0   0   0
Coeur d`Alene  16  37  14  43  21  49 /  50   0   0   0   0   0
Pullman        18  37  17  43  26  51 /  30   0   0   0   0   0
Lewiston       26  40  20  47  27  54 /  20  10   0   0   0   0
Colville       21  41  16  45  22  50 /  50   0   0   0   0   0
Sandpoint      17  34  12  41  21  44 /  50   0   0   0   0   0
Kellogg        17  32  13  40  22  45 /  70   0   0   0   0   0
Moses Lake     22  44  20  48  26  53 /  10   0   0   0   0   0
Wenatchee      27  45  20  50  29  54 /   0   0   0   0   0   0
Omak           22  45  19  47  24  52 /   0   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 022343
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
343 PM PST MON MAR 2 2015

.SYNOPSIS...
A weather system will pass through this evening, with potential
for scattered snow showers along with breezy conditions across
much of the region. The snow shower threat and winds abate
overnight into Tuesday.  Much colder air moves in behind this
system, with temperatures well below average for the middle of the
week. A dry period, with moderating temperature will follow for
the end of the week.

&&

.DISCUSSION...

Tonight and Tuesday: The snow shower threat will dissipate
across the Inland NW tonight on a breezy north wind, leading to a
drier and colder Tuesday. This evening a mid-level shortwave is
tracking across the eastern third of WA and north ID; it is
projected to sag toward central and southern ID late this evening
into the overnight. As that shortwave tracks by us it is
accompanied by a pool of colder 500mb temperatures, in the -30 to
-35 C range. This leads to some unstable lapse rates and so the
accompanying potential for convective showers. Furthermore, a
deformation axis/surface trough lingers across the eastern third
of WA through the night, though it does lose some of its
resolution overnight.

All of this means a threat of scattered to locally numerous snow
showers through, especially early this evening, between 00-04Z (4
to 8 PM), before the drier northerly flow take hold and the
precipitation threat begins to wind down. The deformation
axis/trough itself should help to focus those showers and right
now that been somewhat consistently across northeast mountain and
Spokane/C`dA area.

The convective nature of the system makes pinning down the
precise snow accumulations difficult in the valleys. Values could
range from nothing or a trace to as much as 1 inch or so under the
heaviest bands. The road and air temperatures, however, should
keep the snow from sticking to the roads and other surfaces
initially. However later this evening and overnight any
precipitation that falls would have every opportunity to freeze on
surface. How much of an impact that would have later this evening
and for the Tuesday morning commute is less certain, because areas
that would see little to no accumulation may have no problems but
if you happen to be that spot that gets more precipitation you be
more prone to slick spots. As for the mountains, snow amounts
could be in the 1 to 3 inch range, when all is said and done for
the entire system, with isolated higher amounts.

Late this evening and overnight, the main shower threat is
expected to shift toward the Central Panhandle and Camas Prairie,
and possibly the Blues. A secondary threat will linger within the
northeastern mountains, with a weak secondary wave dropping by and
the weakening deformation axis in the region. Tuesday looks mainly
dry and partly cloudy to clear.

Winds will be an issue this evening with the shortwave pushing in
coupling with a tightening pressure gradients. The strongest winds
are expected through the Okanogan Valley, where some channeling is
expected. However speeds will also be up across the remainder of
eastern WA and the north ID valleys. On average we are looking for
10 to 20 mph, with gusts to 30 mph. However in the Okanogan
Valley speeds of 15 to 30 mph with gusts to 40 mph are possible.
Going into the overnight and Tuesday the gradients begin to
slacken and the atmosphere decouples, so overall speeds should
begin to abate.

Temperatures tonight are expected to drop below normal thanks to
the push of colder, drier air from the north. Values could be some
10 or so degrees below average. This carries into Tuesday
afternoon with highs expected to remain below normal by 5 to 10
degrees. /J. Cote`

Tuesday night through Monday: A ridge of high pressure will be the
dominate weather feature through the period delivering mostly dry
conditions and a gradual warming trend. The only exception is
within the Friday time-frame. Models suggest the ridge will
flatten enough allowing a weak disturbance to skirt the
International Border before dropping southeast down the MT/ID
border. The ECMWF is an outlier at this time indicating the
potential for a tenth or so of liquid while the GFS/Canadian/Ensemble
Means only bring through trace amounts of liquid. Needless to say,
confidence is low regarding this feature and precipitation chances
but this looks to be the only chance for precipitation through
Monday. Temperatures will start off cool with 850mb temperatures
on the order of -5C but warm near 3-8C by the weekend. This will
equate to warming temperatures each day with temperatures expected
to warm well above normal by the weekend.

There are signs in the extended models that a large scale pattern
change will be possible which features the reversal of the Eastern
US trough and Western Ridge. There are some timing differences but
looks to occur around mid to late next week. Climate Prediction
Center looks to favor this change as well with the 8-14 day
outlook predicting the potential for warmer and wetter conditions
on the West Coast... conducive of the incoming trof and
mild/wetter southwest flow. /sb



&&

.AVIATION...
00Z TAFS: A shortwave will drop south across the east WA/north ID
between 00-06Z, with scattered snow showers. With unstable lapses
accompanying these some of these could be locally heavy, producing
brief reductions to MVFR conditions, especially around
GEG/SFF/COE. They will be more isolated toward PUW/LWS. The threat
will wane after 03-04Z over most locations, but could some
potential may linger through 08Z. EAT/MWH will mainly dry, with
only the off chance of a flurry. Otherwise look for VFR conditions
here. Expect breezy conditions around 15 to 25kts, with gusts to
30 around MWH. Other breezy conditions are expected at EAT, as
well as GEG to COE with the incoming shortwave. However speeds
will be a bit less, at 10 to 20kts. Speeds in general will abate
after 08-11Z. /J. Cote`


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        18  37  17  43  23  48 /  50   0   0   0   0   0
Coeur d`Alene  16  37  14  43  21  49 /  50   0   0   0   0   0
Pullman        18  37  17  43  26  51 /  30   0   0   0   0   0
Lewiston       26  40  20  47  27  54 /  20  10   0   0   0   0
Colville       21  41  16  45  22  50 /  50   0   0   0   0   0
Sandpoint      17  34  12  41  21  44 /  50   0   0   0   0   0
Kellogg        17  32  13  40  22  45 /  70   0   0   0   0   0
Moses Lake     22  44  20  48  26  53 /  10   0   0   0   0   0
Wenatchee      27  45  20  50  29  54 /   0   0   0   0   0   0
Omak           22  45  19  47  24  52 /   0   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$






000
FXUS66 KOTX 022343
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
343 PM PST MON MAR 2 2015

.SYNOPSIS...
A weather system will pass through this evening, with potential
for scattered snow showers along with breezy conditions across
much of the region. The snow shower threat and winds abate
overnight into Tuesday.  Much colder air moves in behind this
system, with temperatures well below average for the middle of the
week. A dry period, with moderating temperature will follow for
the end of the week.

&&

.DISCUSSION...

Tonight and Tuesday: The snow shower threat will dissipate
across the Inland NW tonight on a breezy north wind, leading to a
drier and colder Tuesday. This evening a mid-level shortwave is
tracking across the eastern third of WA and north ID; it is
projected to sag toward central and southern ID late this evening
into the overnight. As that shortwave tracks by us it is
accompanied by a pool of colder 500mb temperatures, in the -30 to
-35 C range. This leads to some unstable lapse rates and so the
accompanying potential for convective showers. Furthermore, a
deformation axis/surface trough lingers across the eastern third
of WA through the night, though it does lose some of its
resolution overnight.

All of this means a threat of scattered to locally numerous snow
showers through, especially early this evening, between 00-04Z (4
to 8 PM), before the drier northerly flow take hold and the
precipitation threat begins to wind down. The deformation
axis/trough itself should help to focus those showers and right
now that been somewhat consistently across northeast mountain and
Spokane/C`dA area.

The convective nature of the system makes pinning down the
precise snow accumulations difficult in the valleys. Values could
range from nothing or a trace to as much as 1 inch or so under the
heaviest bands. The road and air temperatures, however, should
keep the snow from sticking to the roads and other surfaces
initially. However later this evening and overnight any
precipitation that falls would have every opportunity to freeze on
surface. How much of an impact that would have later this evening
and for the Tuesday morning commute is less certain, because areas
that would see little to no accumulation may have no problems but
if you happen to be that spot that gets more precipitation you be
more prone to slick spots. As for the mountains, snow amounts
could be in the 1 to 3 inch range, when all is said and done for
the entire system, with isolated higher amounts.

Late this evening and overnight, the main shower threat is
expected to shift toward the Central Panhandle and Camas Prairie,
and possibly the Blues. A secondary threat will linger within the
northeastern mountains, with a weak secondary wave dropping by and
the weakening deformation axis in the region. Tuesday looks mainly
dry and partly cloudy to clear.

Winds will be an issue this evening with the shortwave pushing in
coupling with a tightening pressure gradients. The strongest winds
are expected through the Okanogan Valley, where some channeling is
expected. However speeds will also be up across the remainder of
eastern WA and the north ID valleys. On average we are looking for
10 to 20 mph, with gusts to 30 mph. However in the Okanogan
Valley speeds of 15 to 30 mph with gusts to 40 mph are possible.
Going into the overnight and Tuesday the gradients begin to
slacken and the atmosphere decouples, so overall speeds should
begin to abate.

Temperatures tonight are expected to drop below normal thanks to
the push of colder, drier air from the north. Values could be some
10 or so degrees below average. This carries into Tuesday
afternoon with highs expected to remain below normal by 5 to 10
degrees. /J. Cote`

Tuesday night through Monday: A ridge of high pressure will be the
dominate weather feature through the period delivering mostly dry
conditions and a gradual warming trend. The only exception is
within the Friday time-frame. Models suggest the ridge will
flatten enough allowing a weak disturbance to skirt the
International Border before dropping southeast down the MT/ID
border. The ECMWF is an outlier at this time indicating the
potential for a tenth or so of liquid while the GFS/Canadian/Ensemble
Means only bring through trace amounts of liquid. Needless to say,
confidence is low regarding this feature and precipitation chances
but this looks to be the only chance for precipitation through
Monday. Temperatures will start off cool with 850mb temperatures
on the order of -5C but warm near 3-8C by the weekend. This will
equate to warming temperatures each day with temperatures expected
to warm well above normal by the weekend.

There are signs in the extended models that a large scale pattern
change will be possible which features the reversal of the Eastern
US trough and Western Ridge. There are some timing differences but
looks to occur around mid to late next week. Climate Prediction
Center looks to favor this change as well with the 8-14 day
outlook predicting the potential for warmer and wetter conditions
on the West Coast... conducive of the incoming trof and
mild/wetter southwest flow. /sb



&&

.AVIATION...
00Z TAFS: A shortwave will drop south across the east WA/north ID
between 00-06Z, with scattered snow showers. With unstable lapses
accompanying these some of these could be locally heavy, producing
brief reductions to MVFR conditions, especially around
GEG/SFF/COE. They will be more isolated toward PUW/LWS. The threat
will wane after 03-04Z over most locations, but could some
potential may linger through 08Z. EAT/MWH will mainly dry, with
only the off chance of a flurry. Otherwise look for VFR conditions
here. Expect breezy conditions around 15 to 25kts, with gusts to
30 around MWH. Other breezy conditions are expected at EAT, as
well as GEG to COE with the incoming shortwave. However speeds
will be a bit less, at 10 to 20kts. Speeds in general will abate
after 08-11Z. /J. Cote`


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        18  37  17  43  23  48 /  50   0   0   0   0   0
Coeur d`Alene  16  37  14  43  21  49 /  50   0   0   0   0   0
Pullman        18  37  17  43  26  51 /  30   0   0   0   0   0
Lewiston       26  40  20  47  27  54 /  20  10   0   0   0   0
Colville       21  41  16  45  22  50 /  50   0   0   0   0   0
Sandpoint      17  34  12  41  21  44 /  50   0   0   0   0   0
Kellogg        17  32  13  40  22  45 /  70   0   0   0   0   0
Moses Lake     22  44  20  48  26  53 /  10   0   0   0   0   0
Wenatchee      27  45  20  50  29  54 /   0   0   0   0   0   0
Omak           22  45  19  47  24  52 /   0   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$






000
FXUS66 KOTX 022343
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
343 PM PST MON MAR 2 2015

.SYNOPSIS...
A weather system will pass through this evening, with potential
for scattered snow showers along with breezy conditions across
much of the region. The snow shower threat and winds abate
overnight into Tuesday.  Much colder air moves in behind this
system, with temperatures well below average for the middle of the
week. A dry period, with moderating temperature will follow for
the end of the week.

&&

.DISCUSSION...

Tonight and Tuesday: The snow shower threat will dissipate
across the Inland NW tonight on a breezy north wind, leading to a
drier and colder Tuesday. This evening a mid-level shortwave is
tracking across the eastern third of WA and north ID; it is
projected to sag toward central and southern ID late this evening
into the overnight. As that shortwave tracks by us it is
accompanied by a pool of colder 500mb temperatures, in the -30 to
-35 C range. This leads to some unstable lapse rates and so the
accompanying potential for convective showers. Furthermore, a
deformation axis/surface trough lingers across the eastern third
of WA through the night, though it does lose some of its
resolution overnight.

All of this means a threat of scattered to locally numerous snow
showers through, especially early this evening, between 00-04Z (4
to 8 PM), before the drier northerly flow take hold and the
precipitation threat begins to wind down. The deformation
axis/trough itself should help to focus those showers and right
now that been somewhat consistently across northeast mountain and
Spokane/C`dA area.

The convective nature of the system makes pinning down the
precise snow accumulations difficult in the valleys. Values could
range from nothing or a trace to as much as 1 inch or so under the
heaviest bands. The road and air temperatures, however, should
keep the snow from sticking to the roads and other surfaces
initially. However later this evening and overnight any
precipitation that falls would have every opportunity to freeze on
surface. How much of an impact that would have later this evening
and for the Tuesday morning commute is less certain, because areas
that would see little to no accumulation may have no problems but
if you happen to be that spot that gets more precipitation you be
more prone to slick spots. As for the mountains, snow amounts
could be in the 1 to 3 inch range, when all is said and done for
the entire system, with isolated higher amounts.

Late this evening and overnight, the main shower threat is
expected to shift toward the Central Panhandle and Camas Prairie,
and possibly the Blues. A secondary threat will linger within the
northeastern mountains, with a weak secondary wave dropping by and
the weakening deformation axis in the region. Tuesday looks mainly
dry and partly cloudy to clear.

Winds will be an issue this evening with the shortwave pushing in
coupling with a tightening pressure gradients. The strongest winds
are expected through the Okanogan Valley, where some channeling is
expected. However speeds will also be up across the remainder of
eastern WA and the north ID valleys. On average we are looking for
10 to 20 mph, with gusts to 30 mph. However in the Okanogan
Valley speeds of 15 to 30 mph with gusts to 40 mph are possible.
Going into the overnight and Tuesday the gradients begin to
slacken and the atmosphere decouples, so overall speeds should
begin to abate.

Temperatures tonight are expected to drop below normal thanks to
the push of colder, drier air from the north. Values could be some
10 or so degrees below average. This carries into Tuesday
afternoon with highs expected to remain below normal by 5 to 10
degrees. /J. Cote`

Tuesday night through Monday: A ridge of high pressure will be the
dominate weather feature through the period delivering mostly dry
conditions and a gradual warming trend. The only exception is
within the Friday time-frame. Models suggest the ridge will
flatten enough allowing a weak disturbance to skirt the
International Border before dropping southeast down the MT/ID
border. The ECMWF is an outlier at this time indicating the
potential for a tenth or so of liquid while the GFS/Canadian/Ensemble
Means only bring through trace amounts of liquid. Needless to say,
confidence is low regarding this feature and precipitation chances
but this looks to be the only chance for precipitation through
Monday. Temperatures will start off cool with 850mb temperatures
on the order of -5C but warm near 3-8C by the weekend. This will
equate to warming temperatures each day with temperatures expected
to warm well above normal by the weekend.

There are signs in the extended models that a large scale pattern
change will be possible which features the reversal of the Eastern
US trough and Western Ridge. There are some timing differences but
looks to occur around mid to late next week. Climate Prediction
Center looks to favor this change as well with the 8-14 day
outlook predicting the potential for warmer and wetter conditions
on the West Coast... conducive of the incoming trof and
mild/wetter southwest flow. /sb



&&

.AVIATION...
00Z TAFS: A shortwave will drop south across the east WA/north ID
between 00-06Z, with scattered snow showers. With unstable lapses
accompanying these some of these could be locally heavy, producing
brief reductions to MVFR conditions, especially around
GEG/SFF/COE. They will be more isolated toward PUW/LWS. The threat
will wane after 03-04Z over most locations, but could some
potential may linger through 08Z. EAT/MWH will mainly dry, with
only the off chance of a flurry. Otherwise look for VFR conditions
here. Expect breezy conditions around 15 to 25kts, with gusts to
30 around MWH. Other breezy conditions are expected at EAT, as
well as GEG to COE with the incoming shortwave. However speeds
will be a bit less, at 10 to 20kts. Speeds in general will abate
after 08-11Z. /J. Cote`


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        18  37  17  43  23  48 /  50   0   0   0   0   0
Coeur d`Alene  16  37  14  43  21  49 /  50   0   0   0   0   0
Pullman        18  37  17  43  26  51 /  30   0   0   0   0   0
Lewiston       26  40  20  47  27  54 /  20  10   0   0   0   0
Colville       21  41  16  45  22  50 /  50   0   0   0   0   0
Sandpoint      17  34  12  41  21  44 /  50   0   0   0   0   0
Kellogg        17  32  13  40  22  45 /  70   0   0   0   0   0
Moses Lake     22  44  20  48  26  53 /  10   0   0   0   0   0
Wenatchee      27  45  20  50  29  54 /   0   0   0   0   0   0
Omak           22  45  19  47  24  52 /   0   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 022343
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
343 PM PST MON MAR 2 2015

.SYNOPSIS...
A weather system will pass through this evening, with potential
for scattered snow showers along with breezy conditions across
much of the region. The snow shower threat and winds abate
overnight into Tuesday.  Much colder air moves in behind this
system, with temperatures well below average for the middle of the
week. A dry period, with moderating temperature will follow for
the end of the week.

&&

.DISCUSSION...

Tonight and Tuesday: The snow shower threat will dissipate
across the Inland NW tonight on a breezy north wind, leading to a
drier and colder Tuesday. This evening a mid-level shortwave is
tracking across the eastern third of WA and north ID; it is
projected to sag toward central and southern ID late this evening
into the overnight. As that shortwave tracks by us it is
accompanied by a pool of colder 500mb temperatures, in the -30 to
-35 C range. This leads to some unstable lapse rates and so the
accompanying potential for convective showers. Furthermore, a
deformation axis/surface trough lingers across the eastern third
of WA through the night, though it does lose some of its
resolution overnight.

All of this means a threat of scattered to locally numerous snow
showers through, especially early this evening, between 00-04Z (4
to 8 PM), before the drier northerly flow take hold and the
precipitation threat begins to wind down. The deformation
axis/trough itself should help to focus those showers and right
now that been somewhat consistently across northeast mountain and
Spokane/C`dA area.

The convective nature of the system makes pinning down the
precise snow accumulations difficult in the valleys. Values could
range from nothing or a trace to as much as 1 inch or so under the
heaviest bands. The road and air temperatures, however, should
keep the snow from sticking to the roads and other surfaces
initially. However later this evening and overnight any
precipitation that falls would have every opportunity to freeze on
surface. How much of an impact that would have later this evening
and for the Tuesday morning commute is less certain, because areas
that would see little to no accumulation may have no problems but
if you happen to be that spot that gets more precipitation you be
more prone to slick spots. As for the mountains, snow amounts
could be in the 1 to 3 inch range, when all is said and done for
the entire system, with isolated higher amounts.

Late this evening and overnight, the main shower threat is
expected to shift toward the Central Panhandle and Camas Prairie,
and possibly the Blues. A secondary threat will linger within the
northeastern mountains, with a weak secondary wave dropping by and
the weakening deformation axis in the region. Tuesday looks mainly
dry and partly cloudy to clear.

Winds will be an issue this evening with the shortwave pushing in
coupling with a tightening pressure gradients. The strongest winds
are expected through the Okanogan Valley, where some channeling is
expected. However speeds will also be up across the remainder of
eastern WA and the north ID valleys. On average we are looking for
10 to 20 mph, with gusts to 30 mph. However in the Okanogan
Valley speeds of 15 to 30 mph with gusts to 40 mph are possible.
Going into the overnight and Tuesday the gradients begin to
slacken and the atmosphere decouples, so overall speeds should
begin to abate.

Temperatures tonight are expected to drop below normal thanks to
the push of colder, drier air from the north. Values could be some
10 or so degrees below average. This carries into Tuesday
afternoon with highs expected to remain below normal by 5 to 10
degrees. /J. Cote`

Tuesday night through Monday: A ridge of high pressure will be the
dominate weather feature through the period delivering mostly dry
conditions and a gradual warming trend. The only exception is
within the Friday time-frame. Models suggest the ridge will
flatten enough allowing a weak disturbance to skirt the
International Border before dropping southeast down the MT/ID
border. The ECMWF is an outlier at this time indicating the
potential for a tenth or so of liquid while the GFS/Canadian/Ensemble
Means only bring through trace amounts of liquid. Needless to say,
confidence is low regarding this feature and precipitation chances
but this looks to be the only chance for precipitation through
Monday. Temperatures will start off cool with 850mb temperatures
on the order of -5C but warm near 3-8C by the weekend. This will
equate to warming temperatures each day with temperatures expected
to warm well above normal by the weekend.

There are signs in the extended models that a large scale pattern
change will be possible which features the reversal of the Eastern
US trough and Western Ridge. There are some timing differences but
looks to occur around mid to late next week. Climate Prediction
Center looks to favor this change as well with the 8-14 day
outlook predicting the potential for warmer and wetter conditions
on the West Coast... conducive of the incoming trof and
mild/wetter southwest flow. /sb



&&

.AVIATION...
00Z TAFS: A shortwave will drop south across the east WA/north ID
between 00-06Z, with scattered snow showers. With unstable lapses
accompanying these some of these could be locally heavy, producing
brief reductions to MVFR conditions, especially around
GEG/SFF/COE. They will be more isolated toward PUW/LWS. The threat
will wane after 03-04Z over most locations, but could some
potential may linger through 08Z. EAT/MWH will mainly dry, with
only the off chance of a flurry. Otherwise look for VFR conditions
here. Expect breezy conditions around 15 to 25kts, with gusts to
30 around MWH. Other breezy conditions are expected at EAT, as
well as GEG to COE with the incoming shortwave. However speeds
will be a bit less, at 10 to 20kts. Speeds in general will abate
after 08-11Z. /J. Cote`


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        18  37  17  43  23  48 /  50   0   0   0   0   0
Coeur d`Alene  16  37  14  43  21  49 /  50   0   0   0   0   0
Pullman        18  37  17  43  26  51 /  30   0   0   0   0   0
Lewiston       26  40  20  47  27  54 /  20  10   0   0   0   0
Colville       21  41  16  45  22  50 /  50   0   0   0   0   0
Sandpoint      17  34  12  41  21  44 /  50   0   0   0   0   0
Kellogg        17  32  13  40  22  45 /  70   0   0   0   0   0
Moses Lake     22  44  20  48  26  53 /  10   0   0   0   0   0
Wenatchee      27  45  20  50  29  54 /   0   0   0   0   0   0
Omak           22  45  19  47  24  52 /   0   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 022237
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
237 PM PST MON MAR 2 2015

.SYNOPSIS...
A weather system will pass through this evening, with potential
for scattered snow showers along with breezy conditions across
much of the region. The snow shower threat and winds abate
overnight into Tuesday.  Much colder air moves in behind this
system, with temperatures well below average for the middle of the
week. A dry period, with moderating temperature will follow for
the end of the week.

&&

.DISCUSSION...

Tonight and Tuesday: The snow shower threat will dissipate
across the Inland NW tonight on a breezy north wind, leading to a
drier and colder Tuesday. This evening a mid-level shortwave is
tracking across the eastern third of WA and north ID; it is
projected to sag toward central and southern ID late this evening
into the overnight. As that shortwave tracks by us it is
accompanied by a pool of colder 500mb temperatures, in the -30 to
-35 C range. This leads to some unstable lapse rates and so the
accompanying potential for convective showers. Furthermore, a
deformation axis/surface trough lingers across the eastern third
of WA through the night, though it does lose some of its
resolution overnight.

All of this means a threat of scattered to locally numerous snow
showers through, especially early this evening, between 00-04Z (4
to 8 PM), before the drier northerly flow take hold and the
precipitation threat begins to wind down. The deformation
axis/trough itself should help to focus those showers and right
now that been somewhat consistently across northeast mountain and
Spokane/C`dA area.

The convective nature of the system makes pinning down the
precise snow accumulations difficult in the valleys. Values could
range from nothing or a trace to as much as 1 inch or so under the
heaviest bands. The road and air temperatures, however, should
keep the snow from sticking to the roads and other surfaces
initially. However later this evening and overnight any
precipitation that falls would have every opportunity to freeze on
surface. How much of an impact that would have later this evening
and for the Tuesday morning commute is less certain, because areas
that would see little to no accumulation may have no problems but
if you happen to be that spot that gets more precipitation you be
more prone to slick spots. As for the mountains, snow amounts
could be in the 1 to 3 inch range, when all is said and done for
the entire system, with isolated higher amounts.

Late this evening and overnight, the main shower threat is
expected to shift toward the Central Panhandle and Camas Prairie,
and possibly the Blues. A secondary threat will linger within the
northeastern mountains, with a weak secondary wave dropping by and
the weakening deformation axis in the region. Tuesday looks mainly
dry and partly cloudy to clear.

Winds will be an issue this evening with the shortwave pushing in
coupling with a tightening pressure gradients. The strongest winds
are expected through the Okanogan Valley, where some channeling is
expected. However speeds will also be up across the remainder of
eastern WA and the north ID valleys. On average we are looking for
10 to 20 mph, with gusts to 30 mph. However in the Okanogan
Valley speeds of 15 to 30 mph with gusts to 40 mph are possible.
Going into the overnight and Tuesday the gradients begin to
slacken and the atmosphere decouples, so overall speeds should
begin to abate.

Temperatures tonight are expected to drop below normal thanks to
the push of colder, drier air from the north. Values could be some
10 or so degrees below average. This carries into Tuesday
afternoon with highs expected to remain below normal by 5 to 10
degrees. /J. Cote`

Tuesday night through Monday: A ridge of high pressure will be the
dominate weather feature through the period delivering mostly dry
conditions and a gradual warming trend. The only exception is
within the Friday time-frame. Models suggest the ridge will
flatten enough allowing a weak disturbance to skirt the
International Border before dropping southeast down the MT/ID
border. The ECMWF is an outlier at this time indicating the
potential for a tenth or so of liquid while the GFS/Canadian/Ensemble
Means only bring through trace amounts of liquid. Needless to say,
confidence is low regarding this feature and precipitation chances
but this looks to be the only chance for precipitation through
Monday. Temperatures will start off cool with 850mb temperatures
on the order of -5C but warm near 3-8C by the weekend. This will
equate to warming temperatures each day with temperatures expected
to warm well above normal by the weekend.

There are signs in the extended models that a large scale pattern
change will be possible which features the reversal of the Eastern
US trough and Western Ridge. There are some timing differences but
looks to occur around mid to late next week. Climate Prediction
Center looks to favor this change as well with the 8-14 day
outlook predicting the potential for warmer and wetter conditions
on the West Coast... conducive of the incoming trof and
mild/wetter southwest flow. /sb



&&

.AVIATION...
18Z TAFS: Incoming shortwave will increase snow showers this
afternoon, around the GEG to COE to PUW/LWS area. Some locally
heavier bands of snow are possible in the convective pattern and
incoming vort max. Primarily VFR conditions are expected, but
local MVFR conditions are possible in the heavier bands. The
snow shower threat and clouds will dissipate after 03 to 07Z.
Western TAF sites are expected to see little other than flurries.
Winds will be on the increase through the afternoon and values
remain breezy through the evening, before abating overnight.
/J. Cote`



&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        18  37  17  43  23  48 /  50   0   0   0   0   0
Coeur d`Alene  16  37  14  43  21  49 /  50   0   0   0   0   0
Pullman        18  37  17  43  26  51 /  30   0   0   0   0   0
Lewiston       26  40  20  47  27  54 /  20  10   0   0   0   0
Colville       21  41  16  45  22  50 /  50   0   0   0   0   0
Sandpoint      17  34  12  41  21  44 /  50   0   0   0   0   0
Kellogg        17  32  13  40  22  45 /  70   0   0   0   0   0
Moses Lake     22  44  20  48  26  53 /  10   0   0   0   0   0
Wenatchee      27  45  20  50  29  54 /   0   0   0   0   0   0
Omak           22  45  19  47  24  52 /   0   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 022237
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
237 PM PST MON MAR 2 2015

.SYNOPSIS...
A weather system will pass through this evening, with potential
for scattered snow showers along with breezy conditions across
much of the region. The snow shower threat and winds abate
overnight into Tuesday.  Much colder air moves in behind this
system, with temperatures well below average for the middle of the
week. A dry period, with moderating temperature will follow for
the end of the week.

&&

.DISCUSSION...

Tonight and Tuesday: The snow shower threat will dissipate
across the Inland NW tonight on a breezy north wind, leading to a
drier and colder Tuesday. This evening a mid-level shortwave is
tracking across the eastern third of WA and north ID; it is
projected to sag toward central and southern ID late this evening
into the overnight. As that shortwave tracks by us it is
accompanied by a pool of colder 500mb temperatures, in the -30 to
-35 C range. This leads to some unstable lapse rates and so the
accompanying potential for convective showers. Furthermore, a
deformation axis/surface trough lingers across the eastern third
of WA through the night, though it does lose some of its
resolution overnight.

All of this means a threat of scattered to locally numerous snow
showers through, especially early this evening, between 00-04Z (4
to 8 PM), before the drier northerly flow take hold and the
precipitation threat begins to wind down. The deformation
axis/trough itself should help to focus those showers and right
now that been somewhat consistently across northeast mountain and
Spokane/C`dA area.

The convective nature of the system makes pinning down the
precise snow accumulations difficult in the valleys. Values could
range from nothing or a trace to as much as 1 inch or so under the
heaviest bands. The road and air temperatures, however, should
keep the snow from sticking to the roads and other surfaces
initially. However later this evening and overnight any
precipitation that falls would have every opportunity to freeze on
surface. How much of an impact that would have later this evening
and for the Tuesday morning commute is less certain, because areas
that would see little to no accumulation may have no problems but
if you happen to be that spot that gets more precipitation you be
more prone to slick spots. As for the mountains, snow amounts
could be in the 1 to 3 inch range, when all is said and done for
the entire system, with isolated higher amounts.

Late this evening and overnight, the main shower threat is
expected to shift toward the Central Panhandle and Camas Prairie,
and possibly the Blues. A secondary threat will linger within the
northeastern mountains, with a weak secondary wave dropping by and
the weakening deformation axis in the region. Tuesday looks mainly
dry and partly cloudy to clear.

Winds will be an issue this evening with the shortwave pushing in
coupling with a tightening pressure gradients. The strongest winds
are expected through the Okanogan Valley, where some channeling is
expected. However speeds will also be up across the remainder of
eastern WA and the north ID valleys. On average we are looking for
10 to 20 mph, with gusts to 30 mph. However in the Okanogan
Valley speeds of 15 to 30 mph with gusts to 40 mph are possible.
Going into the overnight and Tuesday the gradients begin to
slacken and the atmosphere decouples, so overall speeds should
begin to abate.

Temperatures tonight are expected to drop below normal thanks to
the push of colder, drier air from the north. Values could be some
10 or so degrees below average. This carries into Tuesday
afternoon with highs expected to remain below normal by 5 to 10
degrees. /J. Cote`

Tuesday night through Monday: A ridge of high pressure will be the
dominate weather feature through the period delivering mostly dry
conditions and a gradual warming trend. The only exception is
within the Friday time-frame. Models suggest the ridge will
flatten enough allowing a weak disturbance to skirt the
International Border before dropping southeast down the MT/ID
border. The ECMWF is an outlier at this time indicating the
potential for a tenth or so of liquid while the GFS/Canadian/Ensemble
Means only bring through trace amounts of liquid. Needless to say,
confidence is low regarding this feature and precipitation chances
but this looks to be the only chance for precipitation through
Monday. Temperatures will start off cool with 850mb temperatures
on the order of -5C but warm near 3-8C by the weekend. This will
equate to warming temperatures each day with temperatures expected
to warm well above normal by the weekend.

There are signs in the extended models that a large scale pattern
change will be possible which features the reversal of the Eastern
US trough and Western Ridge. There are some timing differences but
looks to occur around mid to late next week. Climate Prediction
Center looks to favor this change as well with the 8-14 day
outlook predicting the potential for warmer and wetter conditions
on the West Coast... conducive of the incoming trof and
mild/wetter southwest flow. /sb



&&

.AVIATION...
18Z TAFS: Incoming shortwave will increase snow showers this
afternoon, around the GEG to COE to PUW/LWS area. Some locally
heavier bands of snow are possible in the convective pattern and
incoming vort max. Primarily VFR conditions are expected, but
local MVFR conditions are possible in the heavier bands. The
snow shower threat and clouds will dissipate after 03 to 07Z.
Western TAF sites are expected to see little other than flurries.
Winds will be on the increase through the afternoon and values
remain breezy through the evening, before abating overnight.
/J. Cote`



&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        18  37  17  43  23  48 /  50   0   0   0   0   0
Coeur d`Alene  16  37  14  43  21  49 /  50   0   0   0   0   0
Pullman        18  37  17  43  26  51 /  30   0   0   0   0   0
Lewiston       26  40  20  47  27  54 /  20  10   0   0   0   0
Colville       21  41  16  45  22  50 /  50   0   0   0   0   0
Sandpoint      17  34  12  41  21  44 /  50   0   0   0   0   0
Kellogg        17  32  13  40  22  45 /  70   0   0   0   0   0
Moses Lake     22  44  20  48  26  53 /  10   0   0   0   0   0
Wenatchee      27  45  20  50  29  54 /   0   0   0   0   0   0
Omak           22  45  19  47  24  52 /   0   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$






000
FXUS66 KOTX 022237
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
237 PM PST MON MAR 2 2015

.SYNOPSIS...
A weather system will pass through this evening, with potential
for scattered snow showers along with breezy conditions across
much of the region. The snow shower threat and winds abate
overnight into Tuesday.  Much colder air moves in behind this
system, with temperatures well below average for the middle of the
week. A dry period, with moderating temperature will follow for
the end of the week.

&&

.DISCUSSION...

Tonight and Tuesday: The snow shower threat will dissipate
across the Inland NW tonight on a breezy north wind, leading to a
drier and colder Tuesday. This evening a mid-level shortwave is
tracking across the eastern third of WA and north ID; it is
projected to sag toward central and southern ID late this evening
into the overnight. As that shortwave tracks by us it is
accompanied by a pool of colder 500mb temperatures, in the -30 to
-35 C range. This leads to some unstable lapse rates and so the
accompanying potential for convective showers. Furthermore, a
deformation axis/surface trough lingers across the eastern third
of WA through the night, though it does lose some of its
resolution overnight.

All of this means a threat of scattered to locally numerous snow
showers through, especially early this evening, between 00-04Z (4
to 8 PM), before the drier northerly flow take hold and the
precipitation threat begins to wind down. The deformation
axis/trough itself should help to focus those showers and right
now that been somewhat consistently across northeast mountain and
Spokane/C`dA area.

The convective nature of the system makes pinning down the
precise snow accumulations difficult in the valleys. Values could
range from nothing or a trace to as much as 1 inch or so under the
heaviest bands. The road and air temperatures, however, should
keep the snow from sticking to the roads and other surfaces
initially. However later this evening and overnight any
precipitation that falls would have every opportunity to freeze on
surface. How much of an impact that would have later this evening
and for the Tuesday morning commute is less certain, because areas
that would see little to no accumulation may have no problems but
if you happen to be that spot that gets more precipitation you be
more prone to slick spots. As for the mountains, snow amounts
could be in the 1 to 3 inch range, when all is said and done for
the entire system, with isolated higher amounts.

Late this evening and overnight, the main shower threat is
expected to shift toward the Central Panhandle and Camas Prairie,
and possibly the Blues. A secondary threat will linger within the
northeastern mountains, with a weak secondary wave dropping by and
the weakening deformation axis in the region. Tuesday looks mainly
dry and partly cloudy to clear.

Winds will be an issue this evening with the shortwave pushing in
coupling with a tightening pressure gradients. The strongest winds
are expected through the Okanogan Valley, where some channeling is
expected. However speeds will also be up across the remainder of
eastern WA and the north ID valleys. On average we are looking for
10 to 20 mph, with gusts to 30 mph. However in the Okanogan
Valley speeds of 15 to 30 mph with gusts to 40 mph are possible.
Going into the overnight and Tuesday the gradients begin to
slacken and the atmosphere decouples, so overall speeds should
begin to abate.

Temperatures tonight are expected to drop below normal thanks to
the push of colder, drier air from the north. Values could be some
10 or so degrees below average. This carries into Tuesday
afternoon with highs expected to remain below normal by 5 to 10
degrees. /J. Cote`

Tuesday night through Monday: A ridge of high pressure will be the
dominate weather feature through the period delivering mostly dry
conditions and a gradual warming trend. The only exception is
within the Friday time-frame. Models suggest the ridge will
flatten enough allowing a weak disturbance to skirt the
International Border before dropping southeast down the MT/ID
border. The ECMWF is an outlier at this time indicating the
potential for a tenth or so of liquid while the GFS/Canadian/Ensemble
Means only bring through trace amounts of liquid. Needless to say,
confidence is low regarding this feature and precipitation chances
but this looks to be the only chance for precipitation through
Monday. Temperatures will start off cool with 850mb temperatures
on the order of -5C but warm near 3-8C by the weekend. This will
equate to warming temperatures each day with temperatures expected
to warm well above normal by the weekend.

There are signs in the extended models that a large scale pattern
change will be possible which features the reversal of the Eastern
US trough and Western Ridge. There are some timing differences but
looks to occur around mid to late next week. Climate Prediction
Center looks to favor this change as well with the 8-14 day
outlook predicting the potential for warmer and wetter conditions
on the West Coast... conducive of the incoming trof and
mild/wetter southwest flow. /sb



&&

.AVIATION...
18Z TAFS: Incoming shortwave will increase snow showers this
afternoon, around the GEG to COE to PUW/LWS area. Some locally
heavier bands of snow are possible in the convective pattern and
incoming vort max. Primarily VFR conditions are expected, but
local MVFR conditions are possible in the heavier bands. The
snow shower threat and clouds will dissipate after 03 to 07Z.
Western TAF sites are expected to see little other than flurries.
Winds will be on the increase through the afternoon and values
remain breezy through the evening, before abating overnight.
/J. Cote`



&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        18  37  17  43  23  48 /  50   0   0   0   0   0
Coeur d`Alene  16  37  14  43  21  49 /  50   0   0   0   0   0
Pullman        18  37  17  43  26  51 /  30   0   0   0   0   0
Lewiston       26  40  20  47  27  54 /  20  10   0   0   0   0
Colville       21  41  16  45  22  50 /  50   0   0   0   0   0
Sandpoint      17  34  12  41  21  44 /  50   0   0   0   0   0
Kellogg        17  32  13  40  22  45 /  70   0   0   0   0   0
Moses Lake     22  44  20  48  26  53 /  10   0   0   0   0   0
Wenatchee      27  45  20  50  29  54 /   0   0   0   0   0   0
Omak           22  45  19  47  24  52 /   0   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 022237
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
237 PM PST MON MAR 2 2015

.SYNOPSIS...
A weather system will pass through this evening, with potential
for scattered snow showers along with breezy conditions across
much of the region. The snow shower threat and winds abate
overnight into Tuesday.  Much colder air moves in behind this
system, with temperatures well below average for the middle of the
week. A dry period, with moderating temperature will follow for
the end of the week.

&&

.DISCUSSION...

Tonight and Tuesday: The snow shower threat will dissipate
across the Inland NW tonight on a breezy north wind, leading to a
drier and colder Tuesday. This evening a mid-level shortwave is
tracking across the eastern third of WA and north ID; it is
projected to sag toward central and southern ID late this evening
into the overnight. As that shortwave tracks by us it is
accompanied by a pool of colder 500mb temperatures, in the -30 to
-35 C range. This leads to some unstable lapse rates and so the
accompanying potential for convective showers. Furthermore, a
deformation axis/surface trough lingers across the eastern third
of WA through the night, though it does lose some of its
resolution overnight.

All of this means a threat of scattered to locally numerous snow
showers through, especially early this evening, between 00-04Z (4
to 8 PM), before the drier northerly flow take hold and the
precipitation threat begins to wind down. The deformation
axis/trough itself should help to focus those showers and right
now that been somewhat consistently across northeast mountain and
Spokane/C`dA area.

The convective nature of the system makes pinning down the
precise snow accumulations difficult in the valleys. Values could
range from nothing or a trace to as much as 1 inch or so under the
heaviest bands. The road and air temperatures, however, should
keep the snow from sticking to the roads and other surfaces
initially. However later this evening and overnight any
precipitation that falls would have every opportunity to freeze on
surface. How much of an impact that would have later this evening
and for the Tuesday morning commute is less certain, because areas
that would see little to no accumulation may have no problems but
if you happen to be that spot that gets more precipitation you be
more prone to slick spots. As for the mountains, snow amounts
could be in the 1 to 3 inch range, when all is said and done for
the entire system, with isolated higher amounts.

Late this evening and overnight, the main shower threat is
expected to shift toward the Central Panhandle and Camas Prairie,
and possibly the Blues. A secondary threat will linger within the
northeastern mountains, with a weak secondary wave dropping by and
the weakening deformation axis in the region. Tuesday looks mainly
dry and partly cloudy to clear.

Winds will be an issue this evening with the shortwave pushing in
coupling with a tightening pressure gradients. The strongest winds
are expected through the Okanogan Valley, where some channeling is
expected. However speeds will also be up across the remainder of
eastern WA and the north ID valleys. On average we are looking for
10 to 20 mph, with gusts to 30 mph. However in the Okanogan
Valley speeds of 15 to 30 mph with gusts to 40 mph are possible.
Going into the overnight and Tuesday the gradients begin to
slacken and the atmosphere decouples, so overall speeds should
begin to abate.

Temperatures tonight are expected to drop below normal thanks to
the push of colder, drier air from the north. Values could be some
10 or so degrees below average. This carries into Tuesday
afternoon with highs expected to remain below normal by 5 to 10
degrees. /J. Cote`

Tuesday night through Monday: A ridge of high pressure will be the
dominate weather feature through the period delivering mostly dry
conditions and a gradual warming trend. The only exception is
within the Friday time-frame. Models suggest the ridge will
flatten enough allowing a weak disturbance to skirt the
International Border before dropping southeast down the MT/ID
border. The ECMWF is an outlier at this time indicating the
potential for a tenth or so of liquid while the GFS/Canadian/Ensemble
Means only bring through trace amounts of liquid. Needless to say,
confidence is low regarding this feature and precipitation chances
but this looks to be the only chance for precipitation through
Monday. Temperatures will start off cool with 850mb temperatures
on the order of -5C but warm near 3-8C by the weekend. This will
equate to warming temperatures each day with temperatures expected
to warm well above normal by the weekend.

There are signs in the extended models that a large scale pattern
change will be possible which features the reversal of the Eastern
US trough and Western Ridge. There are some timing differences but
looks to occur around mid to late next week. Climate Prediction
Center looks to favor this change as well with the 8-14 day
outlook predicting the potential for warmer and wetter conditions
on the West Coast... conducive of the incoming trof and
mild/wetter southwest flow. /sb



&&

.AVIATION...
18Z TAFS: Incoming shortwave will increase snow showers this
afternoon, around the GEG to COE to PUW/LWS area. Some locally
heavier bands of snow are possible in the convective pattern and
incoming vort max. Primarily VFR conditions are expected, but
local MVFR conditions are possible in the heavier bands. The
snow shower threat and clouds will dissipate after 03 to 07Z.
Western TAF sites are expected to see little other than flurries.
Winds will be on the increase through the afternoon and values
remain breezy through the evening, before abating overnight.
/J. Cote`



&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        18  37  17  43  23  48 /  50   0   0   0   0   0
Coeur d`Alene  16  37  14  43  21  49 /  50   0   0   0   0   0
Pullman        18  37  17  43  26  51 /  30   0   0   0   0   0
Lewiston       26  40  20  47  27  54 /  20  10   0   0   0   0
Colville       21  41  16  45  22  50 /  50   0   0   0   0   0
Sandpoint      17  34  12  41  21  44 /  50   0   0   0   0   0
Kellogg        17  32  13  40  22  45 /  70   0   0   0   0   0
Moses Lake     22  44  20  48  26  53 /  10   0   0   0   0   0
Wenatchee      27  45  20  50  29  54 /   0   0   0   0   0   0
Omak           22  45  19  47  24  52 /   0   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 022237
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
237 PM PST MON MAR 2 2015

.SYNOPSIS...
A weather system will pass through this evening, with potential
for scattered snow showers along with breezy conditions across
much of the region. The snow shower threat and winds abate
overnight into Tuesday.  Much colder air moves in behind this
system, with temperatures well below average for the middle of the
week. A dry period, with moderating temperature will follow for
the end of the week.

&&

.DISCUSSION...

Tonight and Tuesday: The snow shower threat will dissipate
across the Inland NW tonight on a breezy north wind, leading to a
drier and colder Tuesday. This evening a mid-level shortwave is
tracking across the eastern third of WA and north ID; it is
projected to sag toward central and southern ID late this evening
into the overnight. As that shortwave tracks by us it is
accompanied by a pool of colder 500mb temperatures, in the -30 to
-35 C range. This leads to some unstable lapse rates and so the
accompanying potential for convective showers. Furthermore, a
deformation axis/surface trough lingers across the eastern third
of WA through the night, though it does lose some of its
resolution overnight.

All of this means a threat of scattered to locally numerous snow
showers through, especially early this evening, between 00-04Z (4
to 8 PM), before the drier northerly flow take hold and the
precipitation threat begins to wind down. The deformation
axis/trough itself should help to focus those showers and right
now that been somewhat consistently across northeast mountain and
Spokane/C`dA area.

The convective nature of the system makes pinning down the
precise snow accumulations difficult in the valleys. Values could
range from nothing or a trace to as much as 1 inch or so under the
heaviest bands. The road and air temperatures, however, should
keep the snow from sticking to the roads and other surfaces
initially. However later this evening and overnight any
precipitation that falls would have every opportunity to freeze on
surface. How much of an impact that would have later this evening
and for the Tuesday morning commute is less certain, because areas
that would see little to no accumulation may have no problems but
if you happen to be that spot that gets more precipitation you be
more prone to slick spots. As for the mountains, snow amounts
could be in the 1 to 3 inch range, when all is said and done for
the entire system, with isolated higher amounts.

Late this evening and overnight, the main shower threat is
expected to shift toward the Central Panhandle and Camas Prairie,
and possibly the Blues. A secondary threat will linger within the
northeastern mountains, with a weak secondary wave dropping by and
the weakening deformation axis in the region. Tuesday looks mainly
dry and partly cloudy to clear.

Winds will be an issue this evening with the shortwave pushing in
coupling with a tightening pressure gradients. The strongest winds
are expected through the Okanogan Valley, where some channeling is
expected. However speeds will also be up across the remainder of
eastern WA and the north ID valleys. On average we are looking for
10 to 20 mph, with gusts to 30 mph. However in the Okanogan
Valley speeds of 15 to 30 mph with gusts to 40 mph are possible.
Going into the overnight and Tuesday the gradients begin to
slacken and the atmosphere decouples, so overall speeds should
begin to abate.

Temperatures tonight are expected to drop below normal thanks to
the push of colder, drier air from the north. Values could be some
10 or so degrees below average. This carries into Tuesday
afternoon with highs expected to remain below normal by 5 to 10
degrees. /J. Cote`

Tuesday night through Monday: A ridge of high pressure will be the
dominate weather feature through the period delivering mostly dry
conditions and a gradual warming trend. The only exception is
within the Friday time-frame. Models suggest the ridge will
flatten enough allowing a weak disturbance to skirt the
International Border before dropping southeast down the MT/ID
border. The ECMWF is an outlier at this time indicating the
potential for a tenth or so of liquid while the GFS/Canadian/Ensemble
Means only bring through trace amounts of liquid. Needless to say,
confidence is low regarding this feature and precipitation chances
but this looks to be the only chance for precipitation through
Monday. Temperatures will start off cool with 850mb temperatures
on the order of -5C but warm near 3-8C by the weekend. This will
equate to warming temperatures each day with temperatures expected
to warm well above normal by the weekend.

There are signs in the extended models that a large scale pattern
change will be possible which features the reversal of the Eastern
US trough and Western Ridge. There are some timing differences but
looks to occur around mid to late next week. Climate Prediction
Center looks to favor this change as well with the 8-14 day
outlook predicting the potential for warmer and wetter conditions
on the West Coast... conducive of the incoming trof and
mild/wetter southwest flow. /sb



&&

.AVIATION...
18Z TAFS: Incoming shortwave will increase snow showers this
afternoon, around the GEG to COE to PUW/LWS area. Some locally
heavier bands of snow are possible in the convective pattern and
incoming vort max. Primarily VFR conditions are expected, but
local MVFR conditions are possible in the heavier bands. The
snow shower threat and clouds will dissipate after 03 to 07Z.
Western TAF sites are expected to see little other than flurries.
Winds will be on the increase through the afternoon and values
remain breezy through the evening, before abating overnight.
/J. Cote`



&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        18  37  17  43  23  48 /  50   0   0   0   0   0
Coeur d`Alene  16  37  14  43  21  49 /  50   0   0   0   0   0
Pullman        18  37  17  43  26  51 /  30   0   0   0   0   0
Lewiston       26  40  20  47  27  54 /  20  10   0   0   0   0
Colville       21  41  16  45  22  50 /  50   0   0   0   0   0
Sandpoint      17  34  12  41  21  44 /  50   0   0   0   0   0
Kellogg        17  32  13  40  22  45 /  70   0   0   0   0   0
Moses Lake     22  44  20  48  26  53 /  10   0   0   0   0   0
Wenatchee      27  45  20  50  29  54 /   0   0   0   0   0   0
Omak           22  45  19  47  24  52 /   0   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$






000
FXUS66 KOTX 021940
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
1140 AM PST MON MAR 2 2015

.SYNOPSIS...
A weak weather system will pass through the region today with the
potential for light snow mainly for the Idaho Panhandle, along
with breezy conditions across much of the region this afternoon and
tonight. Much colder air moves in behind this system, with
temperatures well below average for the middle of the week. A dry
period, with moderating temperature will follow for the end of the
week.


&&

.DISCUSSION...
Morning update: we continue to track a shortwave dropping south
across western Canada, working into northeast WA and north ID.
This feature will result in a couple things: snow showers and
breezy conditions.

Thus far much of Cascades, south and eastern WA and north ID are
mostly cloudy to cloudy. Some light flurries are falling from
these clouds. I except some isolated snow showers are falling in
this as well, especially over the higher terrain. However I am not
seeing much in the way of measurable precipitation or any sign of
it on area webcams. However things should change going into this
afternoon.

Most of the short-range models take the incoming shortwave and
some unstable lapse rates associated to blossom scattered to
locally numerous snow showers through the afternoon, especially
starting somewhere toward the 1 to 3 pm. I`m tracking the edge of
that shortwave on WV Satellite, coming toward southeast BC
near Blue River. Models track it south-southeast into northeast
WA/north ID later this afternoon, along with steepening lapse
rates. This should be the impetus for the increasing showers. And
given the atmospheric thermal profile, this should fall mostly as
snow.

In these kind of convective situations it is very, very difficult
to pin-down snow accumulations, especially away from the mountains.
On average amounts could range from a trace to two-tenths of an
inch in the valleys, but the heavier convective or more persistent
bands could produce local amounts to an inch or so. Then the
other question is how effectively that would accumulate, again
outside of the mountains, given things like ground temperature and
air temperature which are expected to be above freezing. So watch
for some heavier bands and perhaps some accumulation, but better
confidence for snow actually sticking more effectively would be in
the mountains above about 2500-3500 feet. About 2 to 4 inches is
possible there.

Lastly winds will be on the rise. They are already increasing
down the Okanogan Valley and are expected to increase elsewhere
later this afternoon and evening. However winds may wait to
increase away from the Okanogan Valley until that shortwave gets
into the region, which could be around 3 to 7 pm.

I made updates to tweak PoPs for the day and evening, then dry
things out over much of the region overnight, save for perhaps
around the northern mountains and central Panhandle to Camas
Prairie.

Temperatures are tricky, but I did lower them some across the east
and raise them or leave them the same toward the lee of the
Cascades.  /J. Cote`


&&

.AVIATION...
18Z TAFS: Incoming shortwave will increase snow showers this
afternoon, around the GEG to COE to PUW/LWS area. Some locally
heavier bands of snow are possible in the convective pattern and
incoming vort max. Primarily VFR conditions are expected, but
local MVFR conditions are possible in the heavier bands. The
snow shower threat and clouds will dissipate after 03 to 07Z.
Western TAF sites are expected to see little other than flurries.
Winds will be on the increase through the afternoon and values
remain breezy through the evening, before abating overnight.
/J. Cote`


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        41  19  34  17  42  23 /  40  30  10   0   0   0
Coeur d`Alene  39  17  35  14  43  20 /  60  50  10   0   0   0
Pullman        43  21  35  17  43  25 /  40  30  10   0   0   0
Lewiston       46  26  39  20  47  26 /  20  20  10   0   0   0
Colville       43  22  39  16  45  21 /  50  40  10   0   0   0
Sandpoint      37  16  33  12  40  20 /  60  40  10   0   0   0
Kellogg        37  17  31  13  40  21 /  80  70  10   0   0   0
Moses Lake     50  24  43  20  47  25 /   0   0   0   0   0   0
Wenatchee      51  27  44  20  49  27 /  10   0   0   0   0   0
Omak           49  22  44  19  48  23 /   0   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$






000
FXUS66 KOTX 021940
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
1140 AM PST MON MAR 2 2015

.SYNOPSIS...
A weak weather system will pass through the region today with the
potential for light snow mainly for the Idaho Panhandle, along
with breezy conditions across much of the region this afternoon and
tonight. Much colder air moves in behind this system, with
temperatures well below average for the middle of the week. A dry
period, with moderating temperature will follow for the end of the
week.


&&

.DISCUSSION...
Morning update: we continue to track a shortwave dropping south
across western Canada, working into northeast WA and north ID.
This feature will result in a couple things: snow showers and
breezy conditions.

Thus far much of Cascades, south and eastern WA and north ID are
mostly cloudy to cloudy. Some light flurries are falling from
these clouds. I except some isolated snow showers are falling in
this as well, especially over the higher terrain. However I am not
seeing much in the way of measurable precipitation or any sign of
it on area webcams. However things should change going into this
afternoon.

Most of the short-range models take the incoming shortwave and
some unstable lapse rates associated to blossom scattered to
locally numerous snow showers through the afternoon, especially
starting somewhere toward the 1 to 3 pm. I`m tracking the edge of
that shortwave on WV Satellite, coming toward southeast BC
near Blue River. Models track it south-southeast into northeast
WA/north ID later this afternoon, along with steepening lapse
rates. This should be the impetus for the increasing showers. And
given the atmospheric thermal profile, this should fall mostly as
snow.

In these kind of convective situations it is very, very difficult
to pin-down snow accumulations, especially away from the mountains.
On average amounts could range from a trace to two-tenths of an
inch in the valleys, but the heavier convective or more persistent
bands could produce local amounts to an inch or so. Then the
other question is how effectively that would accumulate, again
outside of the mountains, given things like ground temperature and
air temperature which are expected to be above freezing. So watch
for some heavier bands and perhaps some accumulation, but better
confidence for snow actually sticking more effectively would be in
the mountains above about 2500-3500 feet. About 2 to 4 inches is
possible there.

Lastly winds will be on the rise. They are already increasing
down the Okanogan Valley and are expected to increase elsewhere
later this afternoon and evening. However winds may wait to
increase away from the Okanogan Valley until that shortwave gets
into the region, which could be around 3 to 7 pm.

I made updates to tweak PoPs for the day and evening, then dry
things out over much of the region overnight, save for perhaps
around the northern mountains and central Panhandle to Camas
Prairie.

Temperatures are tricky, but I did lower them some across the east
and raise them or leave them the same toward the lee of the
Cascades.  /J. Cote`


&&

.AVIATION...
18Z TAFS: Incoming shortwave will increase snow showers this
afternoon, around the GEG to COE to PUW/LWS area. Some locally
heavier bands of snow are possible in the convective pattern and
incoming vort max. Primarily VFR conditions are expected, but
local MVFR conditions are possible in the heavier bands. The
snow shower threat and clouds will dissipate after 03 to 07Z.
Western TAF sites are expected to see little other than flurries.
Winds will be on the increase through the afternoon and values
remain breezy through the evening, before abating overnight.
/J. Cote`


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        41  19  34  17  42  23 /  40  30  10   0   0   0
Coeur d`Alene  39  17  35  14  43  20 /  60  50  10   0   0   0
Pullman        43  21  35  17  43  25 /  40  30  10   0   0   0
Lewiston       46  26  39  20  47  26 /  20  20  10   0   0   0
Colville       43  22  39  16  45  21 /  50  40  10   0   0   0
Sandpoint      37  16  33  12  40  20 /  60  40  10   0   0   0
Kellogg        37  17  31  13  40  21 /  80  70  10   0   0   0
Moses Lake     50  24  43  20  47  25 /   0   0   0   0   0   0
Wenatchee      51  27  44  20  49  27 /  10   0   0   0   0   0
Omak           49  22  44  19  48  23 /   0   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 021202
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
402 AM PST MON MAR 2 2015

.SYNOPSIS...
A weak weather system will pass through the region today with the
potential for light snow mainly for the Idaho Panhandle, along
with breezy conditions across much of the region this afternoon and
tonight. Much colder air moves in behind this system, with
temperatures well below average for the middle of the week. A dry
period, with moderating temperature will follow for the end of the
week.


&&

.DISCUSSION...
For Today and this evening...Satellite imagery is matching up
with model guidance showing a vigorous upper level low dropping
south along the Oregon coast this morning. Some wrap around
moisture should make it east of the Cascades this morning to
support some light snow near the north Cascade crest. Snow
accumulations will be very light.

Satellite imagery is also showing the second advertised low
dropping south through Alberta and will give our eastern zones a
glancing blow from late this morning through this evening. Snow
showers should be confined to east of a line from about Colville
to Walla Walla...with the focus over the Panhandle mountains.
Plenty of dynamical lift to work with, but this disturbance is
lacking in any deep moisture. As such while pops are fairly high
through the afternoon and early evening, precipitation amounts are
on the lighter side. Precipitation will be as snow down to the
valley floor. Amounts will vary from a trace to a couple of
hundredths for the lower elevations around Colville...Deer
Park...Spokane metro and Pullman. Around an inch for the northeast
mountains of Washington. The north and central Panhandle mountains
may see anywhere from 2-6 inches.

The northerly flow will result in much cooler air moving into
the region down north-south valleys. The cold air advection
combined with a tightening of the surface pressure gradient, and
30-35kt 850mb winds will increase the winds down the Okanogan
valley and spilling into the Waterville Plateau and the Columbia
basin. The Purcell trench is somewhat protected form this flow but
should still see increase north-northeast winds later this
afternoon and early this evening. Winds will increase by mid day
with sustained winds of 20-30 mph with gusts 30-35 mph through the
afternoon, before decreasing an hour or two after sunset. For the
Purcell trench and spilling into the Spokane-Coeur D`Alene
corridor and into the Palouse north-northeast winds around 20 mph
with gusts 25-30 mph will be possible. This will result in a very
brisk/raw afternoon for the forecast area.

Tonight through Tuesday night...The upper level low will push east
and high pressure will build out around 130-135w. This will put
the forecast area in a dry northwest to northerly flow. Dry air
will push into the region for a drying trend. Some mid level
clouds will linger over the Panhandle mountains, otherwise mostly
sunny conditions. Temperatures will cool considerably. Once the
winds die down this evening and with clearing skies there should
be ample radiational cooling. Minimum temperatures will drop into
the low teens to low 20s both Tuesday and Wednesday morning...with
a few single digits possible for some of our frost-pockets. Max
temperatures will struggle to rise only into the mid 30s to lower
40s. Which is will be 8-10 degrees below normal. Tobin

Wednesday through Thursday night...A weak impulse will track
across the region Wednesday but will likely result in just some
mid to high clouds. Northerly flow will keep temperatures below
seasonal normals for one more day before starting a slow climb to
more seasonal levels as the ridge axis moves toward the coast.
Cold northerly flow will be replaced by a northwest trajectory
that will bring more of a marine influence to the air mass. This
will allow temperatures to start the warming trend with an
increase of about 5 to 7 degrees expected Thursday and again
Thursday night.

Friday through Sunday...medium range models continue to be at odds
concerning a shortwave trough affecting the area Friday into
Friday night. The latest ECMWF guidance continues to bring this
feature southeast across much of the forecast area while the GFS
remains firm in keeping it well to our northeast. No changes made
to this portion of the forecast until models settle on a solution.
For now, low end PoPs will remain over the higher terrain.
temperatures will moderate as the synoptic flow shifts from
northerly to more westerly. /Kelch

&&

.AVIATION...
12Z TAFS: A weather disturbance will drop south through the
northeast portion of the forecast area this afternoon and result
in a good chance for -SHSN over the north and central Idaho
Panhandle. Showers will be possible as far west as KGEG-KCOE
corridor and at KPUW. The best chance by far will be at KCOE. Cigs
will drop to bkn050-060 after 20z but remain VFR through the
forecast period. KCOE may see brief MVFR cigs/vsby with any
heavier -SHSN. Further to the south and east the remainder of the
TAF sites will remain VFR. Winds will increase at KMWH/KEAT after
20z with sustained northerly winds 18-20kts and gusts 26-30kts
through 06z. KGEG-KCOE may see gusts as high 15-20kts out of the
northeast between 21z-03z. Tobin

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        42  19  34  17  42  23 /  30  10  10   0   0   0
Coeur d`Alene  42  17  35  14  43  20 /  50  20  10   0   0   0
Pullman        42  21  35  17  43  25 /  40  20  10   0   0   0
Lewiston       46  26  39  20  47  26 /  20  20  10   0   0   0
Colville       45  22  39  16  45  21 /  50  10  10   0   0   0
Sandpoint      39  16  33  12  40  20 /  60  30  10   0   0   0
Kellogg        38  17  31  13  40  21 /  80  60  10   0   0   0
Moses Lake     50  24  43  20  47  25 /  10   0   0   0   0   0
Wenatchee      51  27  44  20  49  27 /  10   0   0   0   0   0
Omak           47  22  44  19  48  23 /  10   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$






000
FXUS66 KOTX 021202
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
402 AM PST MON MAR 2 2015

.SYNOPSIS...
A weak weather system will pass through the region today with the
potential for light snow mainly for the Idaho Panhandle, along
with breezy conditions across much of the region this afternoon and
tonight. Much colder air moves in behind this system, with
temperatures well below average for the middle of the week. A dry
period, with moderating temperature will follow for the end of the
week.


&&

.DISCUSSION...
For Today and this evening...Satellite imagery is matching up
with model guidance showing a vigorous upper level low dropping
south along the Oregon coast this morning. Some wrap around
moisture should make it east of the Cascades this morning to
support some light snow near the north Cascade crest. Snow
accumulations will be very light.

Satellite imagery is also showing the second advertised low
dropping south through Alberta and will give our eastern zones a
glancing blow from late this morning through this evening. Snow
showers should be confined to east of a line from about Colville
to Walla Walla...with the focus over the Panhandle mountains.
Plenty of dynamical lift to work with, but this disturbance is
lacking in any deep moisture. As such while pops are fairly high
through the afternoon and early evening, precipitation amounts are
on the lighter side. Precipitation will be as snow down to the
valley floor. Amounts will vary from a trace to a couple of
hundredths for the lower elevations around Colville...Deer
Park...Spokane metro and Pullman. Around an inch for the northeast
mountains of Washington. The north and central Panhandle mountains
may see anywhere from 2-6 inches.

The northerly flow will result in much cooler air moving into
the region down north-south valleys. The cold air advection
combined with a tightening of the surface pressure gradient, and
30-35kt 850mb winds will increase the winds down the Okanogan
valley and spilling into the Waterville Plateau and the Columbia
basin. The Purcell trench is somewhat protected form this flow but
should still see increase north-northeast winds later this
afternoon and early this evening. Winds will increase by mid day
with sustained winds of 20-30 mph with gusts 30-35 mph through the
afternoon, before decreasing an hour or two after sunset. For the
Purcell trench and spilling into the Spokane-Coeur D`Alene
corridor and into the Palouse north-northeast winds around 20 mph
with gusts 25-30 mph will be possible. This will result in a very
brisk/raw afternoon for the forecast area.

Tonight through Tuesday night...The upper level low will push east
and high pressure will build out around 130-135w. This will put
the forecast area in a dry northwest to northerly flow. Dry air
will push into the region for a drying trend. Some mid level
clouds will linger over the Panhandle mountains, otherwise mostly
sunny conditions. Temperatures will cool considerably. Once the
winds die down this evening and with clearing skies there should
be ample radiational cooling. Minimum temperatures will drop into
the low teens to low 20s both Tuesday and Wednesday morning...with
a few single digits possible for some of our frost-pockets. Max
temperatures will struggle to rise only into the mid 30s to lower
40s. Which is will be 8-10 degrees below normal. Tobin

Wednesday through Thursday night...A weak impulse will track
across the region Wednesday but will likely result in just some
mid to high clouds. Northerly flow will keep temperatures below
seasonal normals for one more day before starting a slow climb to
more seasonal levels as the ridge axis moves toward the coast.
Cold northerly flow will be replaced by a northwest trajectory
that will bring more of a marine influence to the air mass. This
will allow temperatures to start the warming trend with an
increase of about 5 to 7 degrees expected Thursday and again
Thursday night.

Friday through Sunday...medium range models continue to be at odds
concerning a shortwave trough affecting the area Friday into
Friday night. The latest ECMWF guidance continues to bring this
feature southeast across much of the forecast area while the GFS
remains firm in keeping it well to our northeast. No changes made
to this portion of the forecast until models settle on a solution.
For now, low end PoPs will remain over the higher terrain.
temperatures will moderate as the synoptic flow shifts from
northerly to more westerly. /Kelch

&&

.AVIATION...
12Z TAFS: A weather disturbance will drop south through the
northeast portion of the forecast area this afternoon and result
in a good chance for -SHSN over the north and central Idaho
Panhandle. Showers will be possible as far west as KGEG-KCOE
corridor and at KPUW. The best chance by far will be at KCOE. Cigs
will drop to bkn050-060 after 20z but remain VFR through the
forecast period. KCOE may see brief MVFR cigs/vsby with any
heavier -SHSN. Further to the south and east the remainder of the
TAF sites will remain VFR. Winds will increase at KMWH/KEAT after
20z with sustained northerly winds 18-20kts and gusts 26-30kts
through 06z. KGEG-KCOE may see gusts as high 15-20kts out of the
northeast between 21z-03z. Tobin

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        42  19  34  17  42  23 /  30  10  10   0   0   0
Coeur d`Alene  42  17  35  14  43  20 /  50  20  10   0   0   0
Pullman        42  21  35  17  43  25 /  40  20  10   0   0   0
Lewiston       46  26  39  20  47  26 /  20  20  10   0   0   0
Colville       45  22  39  16  45  21 /  50  10  10   0   0   0
Sandpoint      39  16  33  12  40  20 /  60  30  10   0   0   0
Kellogg        38  17  31  13  40  21 /  80  60  10   0   0   0
Moses Lake     50  24  43  20  47  25 /  10   0   0   0   0   0
Wenatchee      51  27  44  20  49  27 /  10   0   0   0   0   0
Omak           47  22  44  19  48  23 /  10   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 021202
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
402 AM PST MON MAR 2 2015

.SYNOPSIS...
A weak weather system will pass through the region today with the
potential for light snow mainly for the Idaho Panhandle, along
with breezy conditions across much of the region this afternoon and
tonight. Much colder air moves in behind this system, with
temperatures well below average for the middle of the week. A dry
period, with moderating temperature will follow for the end of the
week.


&&

.DISCUSSION...
For Today and this evening...Satellite imagery is matching up
with model guidance showing a vigorous upper level low dropping
south along the Oregon coast this morning. Some wrap around
moisture should make it east of the Cascades this morning to
support some light snow near the north Cascade crest. Snow
accumulations will be very light.

Satellite imagery is also showing the second advertised low
dropping south through Alberta and will give our eastern zones a
glancing blow from late this morning through this evening. Snow
showers should be confined to east of a line from about Colville
to Walla Walla...with the focus over the Panhandle mountains.
Plenty of dynamical lift to work with, but this disturbance is
lacking in any deep moisture. As such while pops are fairly high
through the afternoon and early evening, precipitation amounts are
on the lighter side. Precipitation will be as snow down to the
valley floor. Amounts will vary from a trace to a couple of
hundredths for the lower elevations around Colville...Deer
Park...Spokane metro and Pullman. Around an inch for the northeast
mountains of Washington. The north and central Panhandle mountains
may see anywhere from 2-6 inches.

The northerly flow will result in much cooler air moving into
the region down north-south valleys. The cold air advection
combined with a tightening of the surface pressure gradient, and
30-35kt 850mb winds will increase the winds down the Okanogan
valley and spilling into the Waterville Plateau and the Columbia
basin. The Purcell trench is somewhat protected form this flow but
should still see increase north-northeast winds later this
afternoon and early this evening. Winds will increase by mid day
with sustained winds of 20-30 mph with gusts 30-35 mph through the
afternoon, before decreasing an hour or two after sunset. For the
Purcell trench and spilling into the Spokane-Coeur D`Alene
corridor and into the Palouse north-northeast winds around 20 mph
with gusts 25-30 mph will be possible. This will result in a very
brisk/raw afternoon for the forecast area.

Tonight through Tuesday night...The upper level low will push east
and high pressure will build out around 130-135w. This will put
the forecast area in a dry northwest to northerly flow. Dry air
will push into the region for a drying trend. Some mid level
clouds will linger over the Panhandle mountains, otherwise mostly
sunny conditions. Temperatures will cool considerably. Once the
winds die down this evening and with clearing skies there should
be ample radiational cooling. Minimum temperatures will drop into
the low teens to low 20s both Tuesday and Wednesday morning...with
a few single digits possible for some of our frost-pockets. Max
temperatures will struggle to rise only into the mid 30s to lower
40s. Which is will be 8-10 degrees below normal. Tobin

Wednesday through Thursday night...A weak impulse will track
across the region Wednesday but will likely result in just some
mid to high clouds. Northerly flow will keep temperatures below
seasonal normals for one more day before starting a slow climb to
more seasonal levels as the ridge axis moves toward the coast.
Cold northerly flow will be replaced by a northwest trajectory
that will bring more of a marine influence to the air mass. This
will allow temperatures to start the warming trend with an
increase of about 5 to 7 degrees expected Thursday and again
Thursday night.

Friday through Sunday...medium range models continue to be at odds
concerning a shortwave trough affecting the area Friday into
Friday night. The latest ECMWF guidance continues to bring this
feature southeast across much of the forecast area while the GFS
remains firm in keeping it well to our northeast. No changes made
to this portion of the forecast until models settle on a solution.
For now, low end PoPs will remain over the higher terrain.
temperatures will moderate as the synoptic flow shifts from
northerly to more westerly. /Kelch

&&

.AVIATION...
12Z TAFS: A weather disturbance will drop south through the
northeast portion of the forecast area this afternoon and result
in a good chance for -SHSN over the north and central Idaho
Panhandle. Showers will be possible as far west as KGEG-KCOE
corridor and at KPUW. The best chance by far will be at KCOE. Cigs
will drop to bkn050-060 after 20z but remain VFR through the
forecast period. KCOE may see brief MVFR cigs/vsby with any
heavier -SHSN. Further to the south and east the remainder of the
TAF sites will remain VFR. Winds will increase at KMWH/KEAT after
20z with sustained northerly winds 18-20kts and gusts 26-30kts
through 06z. KGEG-KCOE may see gusts as high 15-20kts out of the
northeast between 21z-03z. Tobin

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        42  19  34  17  42  23 /  30  10  10   0   0   0
Coeur d`Alene  42  17  35  14  43  20 /  50  20  10   0   0   0
Pullman        42  21  35  17  43  25 /  40  20  10   0   0   0
Lewiston       46  26  39  20  47  26 /  20  20  10   0   0   0
Colville       45  22  39  16  45  21 /  50  10  10   0   0   0
Sandpoint      39  16  33  12  40  20 /  60  30  10   0   0   0
Kellogg        38  17  31  13  40  21 /  80  60  10   0   0   0
Moses Lake     50  24  43  20  47  25 /  10   0   0   0   0   0
Wenatchee      51  27  44  20  49  27 /  10   0   0   0   0   0
Omak           47  22  44  19  48  23 /  10   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$






000
FXUS66 KOTX 021202
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
402 AM PST MON MAR 2 2015

.SYNOPSIS...
A weak weather system will pass through the region today with the
potential for light snow mainly for the Idaho Panhandle, along
with breezy conditions across much of the region this afternoon and
tonight. Much colder air moves in behind this system, with
temperatures well below average for the middle of the week. A dry
period, with moderating temperature will follow for the end of the
week.


&&

.DISCUSSION...
For Today and this evening...Satellite imagery is matching up
with model guidance showing a vigorous upper level low dropping
south along the Oregon coast this morning. Some wrap around
moisture should make it east of the Cascades this morning to
support some light snow near the north Cascade crest. Snow
accumulations will be very light.

Satellite imagery is also showing the second advertised low
dropping south through Alberta and will give our eastern zones a
glancing blow from late this morning through this evening. Snow
showers should be confined to east of a line from about Colville
to Walla Walla...with the focus over the Panhandle mountains.
Plenty of dynamical lift to work with, but this disturbance is
lacking in any deep moisture. As such while pops are fairly high
through the afternoon and early evening, precipitation amounts are
on the lighter side. Precipitation will be as snow down to the
valley floor. Amounts will vary from a trace to a couple of
hundredths for the lower elevations around Colville...Deer
Park...Spokane metro and Pullman. Around an inch for the northeast
mountains of Washington. The north and central Panhandle mountains
may see anywhere from 2-6 inches.

The northerly flow will result in much cooler air moving into
the region down north-south valleys. The cold air advection
combined with a tightening of the surface pressure gradient, and
30-35kt 850mb winds will increase the winds down the Okanogan
valley and spilling into the Waterville Plateau and the Columbia
basin. The Purcell trench is somewhat protected form this flow but
should still see increase north-northeast winds later this
afternoon and early this evening. Winds will increase by mid day
with sustained winds of 20-30 mph with gusts 30-35 mph through the
afternoon, before decreasing an hour or two after sunset. For the
Purcell trench and spilling into the Spokane-Coeur D`Alene
corridor and into the Palouse north-northeast winds around 20 mph
with gusts 25-30 mph will be possible. This will result in a very
brisk/raw afternoon for the forecast area.

Tonight through Tuesday night...The upper level low will push east
and high pressure will build out around 130-135w. This will put
the forecast area in a dry northwest to northerly flow. Dry air
will push into the region for a drying trend. Some mid level
clouds will linger over the Panhandle mountains, otherwise mostly
sunny conditions. Temperatures will cool considerably. Once the
winds die down this evening and with clearing skies there should
be ample radiational cooling. Minimum temperatures will drop into
the low teens to low 20s both Tuesday and Wednesday morning...with
a few single digits possible for some of our frost-pockets. Max
temperatures will struggle to rise only into the mid 30s to lower
40s. Which is will be 8-10 degrees below normal. Tobin

Wednesday through Thursday night...A weak impulse will track
across the region Wednesday but will likely result in just some
mid to high clouds. Northerly flow will keep temperatures below
seasonal normals for one more day before starting a slow climb to
more seasonal levels as the ridge axis moves toward the coast.
Cold northerly flow will be replaced by a northwest trajectory
that will bring more of a marine influence to the air mass. This
will allow temperatures to start the warming trend with an
increase of about 5 to 7 degrees expected Thursday and again
Thursday night.

Friday through Sunday...medium range models continue to be at odds
concerning a shortwave trough affecting the area Friday into
Friday night. The latest ECMWF guidance continues to bring this
feature southeast across much of the forecast area while the GFS
remains firm in keeping it well to our northeast. No changes made
to this portion of the forecast until models settle on a solution.
For now, low end PoPs will remain over the higher terrain.
temperatures will moderate as the synoptic flow shifts from
northerly to more westerly. /Kelch

&&

.AVIATION...
12Z TAFS: A weather disturbance will drop south through the
northeast portion of the forecast area this afternoon and result
in a good chance for -SHSN over the north and central Idaho
Panhandle. Showers will be possible as far west as KGEG-KCOE
corridor and at KPUW. The best chance by far will be at KCOE. Cigs
will drop to bkn050-060 after 20z but remain VFR through the
forecast period. KCOE may see brief MVFR cigs/vsby with any
heavier -SHSN. Further to the south and east the remainder of the
TAF sites will remain VFR. Winds will increase at KMWH/KEAT after
20z with sustained northerly winds 18-20kts and gusts 26-30kts
through 06z. KGEG-KCOE may see gusts as high 15-20kts out of the
northeast between 21z-03z. Tobin

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        42  19  34  17  42  23 /  30  10  10   0   0   0
Coeur d`Alene  42  17  35  14  43  20 /  50  20  10   0   0   0
Pullman        42  21  35  17  43  25 /  40  20  10   0   0   0
Lewiston       46  26  39  20  47  26 /  20  20  10   0   0   0
Colville       45  22  39  16  45  21 /  50  10  10   0   0   0
Sandpoint      39  16  33  12  40  20 /  60  30  10   0   0   0
Kellogg        38  17  31  13  40  21 /  80  60  10   0   0   0
Moses Lake     50  24  43  20  47  25 /  10   0   0   0   0   0
Wenatchee      51  27  44  20  49  27 /  10   0   0   0   0   0
Omak           47  22  44  19  48  23 /  10   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 021035
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
235 AM PST MON MAR 2 2015

.SYNOPSIS...
A weak weather system will pass through the region today with the
potential for light snow mainly for the Idaho Panhandle, along
with breezy conditions across much of the region this afternoon and
tonight. Much colder air moves in behind this system, with
temperatures well below average for the middle of the week. A dry
period, with moderating temperature will follow for the end of the
week.


&&

.DISCUSSION...
For Today and this evening...Satellite imagery is matching up
with model guidance showing a vigorous upper level low dropping
south along the Oregon coast this morning. Some wrap around
moisture should make it east of the Cascades this morning to
support some light snow near the north Cascade crest. Snow
accumulations will be very light.

Satellite imagery is also showing the second advertised low
dropping south through Alberta and will give our eastern zones a
glancing blow from late this morning through this evening. Snow
showers should be confined to east of a line from about Colville
to Walla Walla...with the focus over the Panhandle mountains.
Plenty of dynamical lift to work with, but this disturbance is
lacking in any deep moisture. As such while pops are fairly high
through the afternoon and early evening, precipitation amounts are
on the lighter side. Precipitation will be as snow down to the
valley floor. Amounts will vary from a trace to a couple of
hundredths for the lower elevations around Colville...Deer
Park...Spokane metro and Pullman. Around an inch for the northeast
mountains of Washington. The north and central Panhandle mountains
may see anywhere from 2-6 inches.

The northerly flow will result in much cooler air moving into
the region down north-south valleys. The cold air advection
combined with a tightening of the surface pressure gradient, and
30-35kt 850mb winds will increase the winds down the Okanogan
valley and spilling into the Waterville Plateau and the Columbia
basin. The Purcell trench is somewhat protected form this flow but
should still see increase north-northeast winds later this
afternoon and early this evening. Winds will increase by mid day
with sustained winds of 20-30 mph with gusts 30-35 mph through the
afternoon, before decreasing an hour or two after sunset. For the
Purcell trench and spilling into the Spokane-Coeur D`Alene
corridor and into the Palouse north-northeast winds around 20 mph
with gusts 25-30 mph will be possible. This will result in a very
brisk/raw afternoon for the forecast area.

Tonight through Tuesday night...The upper level low will push east
and high pressure will build out around 130-135w. This will put
the forecast area in a dry northwest to northerly flow. Dry air
will push into the region for a drying trend. Some mid level
clouds will linger over the Panhandle mountains, otherwise mostly
sunny conditions. Temperatures will cool considerably. Once the
winds die down this evening and with clearing skies there should
be ample radiational cooling. Minimum temperatures will drop into
the low teens to low 20s both Tuesday and Wednesday morning...with
a few single digits possible for some of our frost-pockets. Max
temperatures will struggle to rise only into the mid 30s to lower
40s. Which is will be 8-10 degrees below normal. Tobin

Wednesday through Thursday night...A weak impulse will track
across the region Wednesday but will likely result in just some
mid to high clouds. Northerly flow will keep temperatures below
seasonal normals for one more day before starting a slow climb to
more seasonal levels as the ridge axis moves toward the coast.
Cold northerly flow will be replaced by a northwest trajectory
that will bring more of a marine influence to the air mass. This
will allow temperatures to start the warming trend with an
increase of about 5 to 7 degrees expected Thursday and again
Thursday night.

Friday through Sunday...medium range models continue to be at odds
concerning a shortwave trough affecting the area Friday into
Friday night. The latest ECMWF guidance continues to bring this
feature southeast across much of the forecast area while the GFS
remains firm in keeping it well to our northeast. No changes made
to this portion of the forecast until models settle on a solution.
For now, low end PoPs will remain over the higher terrain.
temperatures will moderate as the synoptic flow shifts from
northerly to more westerly. /Kelch

&&

.AVIATION...
06Z TAFS: VFR conditions to prevail at most taf sites. High
clouds continue to invade and thicken above in association with
incoming front. Little in way of prolonged and intense
precipitation expected with it so brief MVFR ceilings and
visibilities may be associated with any snow showers which occur.
In the wake of this front the northeast wind will increase in
intensity and be quite gusty from about 5Z Tuesday into the
evening. /Pelatti


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        42  19  34  17  42  23 /  30  10  10   0   0   0
Coeur d`Alene  42  17  35  14  43  20 /  50  20  10   0   0   0
Pullman        42  21  35  17  43  25 /  40  20  10   0   0   0
Lewiston       46  26  39  20  47  26 /  20  20  10   0   0   0
Colville       45  22  39  16  45  21 /  50  10  10   0   0   0
Sandpoint      39  16  33  12  40  20 /  60  30  10   0   0   0
Kellogg        38  17  31  13  40  21 /  80  60  10   0   0   0
Moses Lake     50  24  43  20  47  25 /  10   0   0   0   0   0
Wenatchee      51  27  44  20  49  27 /  10   0   0   0   0   0
Omak           47  22  44  19  48  23 /  10   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$






000
FXUS66 KOTX 021035
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
235 AM PST MON MAR 2 2015

.SYNOPSIS...
A weak weather system will pass through the region today with the
potential for light snow mainly for the Idaho Panhandle, along
with breezy conditions across much of the region this afternoon and
tonight. Much colder air moves in behind this system, with
temperatures well below average for the middle of the week. A dry
period, with moderating temperature will follow for the end of the
week.


&&

.DISCUSSION...
For Today and this evening...Satellite imagery is matching up
with model guidance showing a vigorous upper level low dropping
south along the Oregon coast this morning. Some wrap around
moisture should make it east of the Cascades this morning to
support some light snow near the north Cascade crest. Snow
accumulations will be very light.

Satellite imagery is also showing the second advertised low
dropping south through Alberta and will give our eastern zones a
glancing blow from late this morning through this evening. Snow
showers should be confined to east of a line from about Colville
to Walla Walla...with the focus over the Panhandle mountains.
Plenty of dynamical lift to work with, but this disturbance is
lacking in any deep moisture. As such while pops are fairly high
through the afternoon and early evening, precipitation amounts are
on the lighter side. Precipitation will be as snow down to the
valley floor. Amounts will vary from a trace to a couple of
hundredths for the lower elevations around Colville...Deer
Park...Spokane metro and Pullman. Around an inch for the northeast
mountains of Washington. The north and central Panhandle mountains
may see anywhere from 2-6 inches.

The northerly flow will result in much cooler air moving into
the region down north-south valleys. The cold air advection
combined with a tightening of the surface pressure gradient, and
30-35kt 850mb winds will increase the winds down the Okanogan
valley and spilling into the Waterville Plateau and the Columbia
basin. The Purcell trench is somewhat protected form this flow but
should still see increase north-northeast winds later this
afternoon and early this evening. Winds will increase by mid day
with sustained winds of 20-30 mph with gusts 30-35 mph through the
afternoon, before decreasing an hour or two after sunset. For the
Purcell trench and spilling into the Spokane-Coeur D`Alene
corridor and into the Palouse north-northeast winds around 20 mph
with gusts 25-30 mph will be possible. This will result in a very
brisk/raw afternoon for the forecast area.

Tonight through Tuesday night...The upper level low will push east
and high pressure will build out around 130-135w. This will put
the forecast area in a dry northwest to northerly flow. Dry air
will push into the region for a drying trend. Some mid level
clouds will linger over the Panhandle mountains, otherwise mostly
sunny conditions. Temperatures will cool considerably. Once the
winds die down this evening and with clearing skies there should
be ample radiational cooling. Minimum temperatures will drop into
the low teens to low 20s both Tuesday and Wednesday morning...with
a few single digits possible for some of our frost-pockets. Max
temperatures will struggle to rise only into the mid 30s to lower
40s. Which is will be 8-10 degrees below normal. Tobin

Wednesday through Thursday night...A weak impulse will track
across the region Wednesday but will likely result in just some
mid to high clouds. Northerly flow will keep temperatures below
seasonal normals for one more day before starting a slow climb to
more seasonal levels as the ridge axis moves toward the coast.
Cold northerly flow will be replaced by a northwest trajectory
that will bring more of a marine influence to the air mass. This
will allow temperatures to start the warming trend with an
increase of about 5 to 7 degrees expected Thursday and again
Thursday night.

Friday through Sunday...medium range models continue to be at odds
concerning a shortwave trough affecting the area Friday into
Friday night. The latest ECMWF guidance continues to bring this
feature southeast across much of the forecast area while the GFS
remains firm in keeping it well to our northeast. No changes made
to this portion of the forecast until models settle on a solution.
For now, low end PoPs will remain over the higher terrain.
temperatures will moderate as the synoptic flow shifts from
northerly to more westerly. /Kelch

&&

.AVIATION...
06Z TAFS: VFR conditions to prevail at most taf sites. High
clouds continue to invade and thicken above in association with
incoming front. Little in way of prolonged and intense
precipitation expected with it so brief MVFR ceilings and
visibilities may be associated with any snow showers which occur.
In the wake of this front the northeast wind will increase in
intensity and be quite gusty from about 5Z Tuesday into the
evening. /Pelatti


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        42  19  34  17  42  23 /  30  10  10   0   0   0
Coeur d`Alene  42  17  35  14  43  20 /  50  20  10   0   0   0
Pullman        42  21  35  17  43  25 /  40  20  10   0   0   0
Lewiston       46  26  39  20  47  26 /  20  20  10   0   0   0
Colville       45  22  39  16  45  21 /  50  10  10   0   0   0
Sandpoint      39  16  33  12  40  20 /  60  30  10   0   0   0
Kellogg        38  17  31  13  40  21 /  80  60  10   0   0   0
Moses Lake     50  24  43  20  47  25 /  10   0   0   0   0   0
Wenatchee      51  27  44  20  49  27 /  10   0   0   0   0   0
Omak           47  22  44  19  48  23 /  10   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 021035
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
235 AM PST MON MAR 2 2015

.SYNOPSIS...
A weak weather system will pass through the region today with the
potential for light snow mainly for the Idaho Panhandle, along
with breezy conditions across much of the region this afternoon and
tonight. Much colder air moves in behind this system, with
temperatures well below average for the middle of the week. A dry
period, with moderating temperature will follow for the end of the
week.


&&

.DISCUSSION...
For Today and this evening...Satellite imagery is matching up
with model guidance showing a vigorous upper level low dropping
south along the Oregon coast this morning. Some wrap around
moisture should make it east of the Cascades this morning to
support some light snow near the north Cascade crest. Snow
accumulations will be very light.

Satellite imagery is also showing the second advertised low
dropping south through Alberta and will give our eastern zones a
glancing blow from late this morning through this evening. Snow
showers should be confined to east of a line from about Colville
to Walla Walla...with the focus over the Panhandle mountains.
Plenty of dynamical lift to work with, but this disturbance is
lacking in any deep moisture. As such while pops are fairly high
through the afternoon and early evening, precipitation amounts are
on the lighter side. Precipitation will be as snow down to the
valley floor. Amounts will vary from a trace to a couple of
hundredths for the lower elevations around Colville...Deer
Park...Spokane metro and Pullman. Around an inch for the northeast
mountains of Washington. The north and central Panhandle mountains
may see anywhere from 2-6 inches.

The northerly flow will result in much cooler air moving into
the region down north-south valleys. The cold air advection
combined with a tightening of the surface pressure gradient, and
30-35kt 850mb winds will increase the winds down the Okanogan
valley and spilling into the Waterville Plateau and the Columbia
basin. The Purcell trench is somewhat protected form this flow but
should still see increase north-northeast winds later this
afternoon and early this evening. Winds will increase by mid day
with sustained winds of 20-30 mph with gusts 30-35 mph through the
afternoon, before decreasing an hour or two after sunset. For the
Purcell trench and spilling into the Spokane-Coeur D`Alene
corridor and into the Palouse north-northeast winds around 20 mph
with gusts 25-30 mph will be possible. This will result in a very
brisk/raw afternoon for the forecast area.

Tonight through Tuesday night...The upper level low will push east
and high pressure will build out around 130-135w. This will put
the forecast area in a dry northwest to northerly flow. Dry air
will push into the region for a drying trend. Some mid level
clouds will linger over the Panhandle mountains, otherwise mostly
sunny conditions. Temperatures will cool considerably. Once the
winds die down this evening and with clearing skies there should
be ample radiational cooling. Minimum temperatures will drop into
the low teens to low 20s both Tuesday and Wednesday morning...with
a few single digits possible for some of our frost-pockets. Max
temperatures will struggle to rise only into the mid 30s to lower
40s. Which is will be 8-10 degrees below normal. Tobin

Wednesday through Thursday night...A weak impulse will track
across the region Wednesday but will likely result in just some
mid to high clouds. Northerly flow will keep temperatures below
seasonal normals for one more day before starting a slow climb to
more seasonal levels as the ridge axis moves toward the coast.
Cold northerly flow will be replaced by a northwest trajectory
that will bring more of a marine influence to the air mass. This
will allow temperatures to start the warming trend with an
increase of about 5 to 7 degrees expected Thursday and again
Thursday night.

Friday through Sunday...medium range models continue to be at odds
concerning a shortwave trough affecting the area Friday into
Friday night. The latest ECMWF guidance continues to bring this
feature southeast across much of the forecast area while the GFS
remains firm in keeping it well to our northeast. No changes made
to this portion of the forecast until models settle on a solution.
For now, low end PoPs will remain over the higher terrain.
temperatures will moderate as the synoptic flow shifts from
northerly to more westerly. /Kelch

&&

.AVIATION...
06Z TAFS: VFR conditions to prevail at most taf sites. High
clouds continue to invade and thicken above in association with
incoming front. Little in way of prolonged and intense
precipitation expected with it so brief MVFR ceilings and
visibilities may be associated with any snow showers which occur.
In the wake of this front the northeast wind will increase in
intensity and be quite gusty from about 5Z Tuesday into the
evening. /Pelatti


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        42  19  34  17  42  23 /  30  10  10   0   0   0
Coeur d`Alene  42  17  35  14  43  20 /  50  20  10   0   0   0
Pullman        42  21  35  17  43  25 /  40  20  10   0   0   0
Lewiston       46  26  39  20  47  26 /  20  20  10   0   0   0
Colville       45  22  39  16  45  21 /  50  10  10   0   0   0
Sandpoint      39  16  33  12  40  20 /  60  30  10   0   0   0
Kellogg        38  17  31  13  40  21 /  80  60  10   0   0   0
Moses Lake     50  24  43  20  47  25 /  10   0   0   0   0   0
Wenatchee      51  27  44  20  49  27 /  10   0   0   0   0   0
Omak           47  22  44  19  48  23 /  10   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 021035
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
235 AM PST MON MAR 2 2015

.SYNOPSIS...
A weak weather system will pass through the region today with the
potential for light snow mainly for the Idaho Panhandle, along
with breezy conditions across much of the region this afternoon and
tonight. Much colder air moves in behind this system, with
temperatures well below average for the middle of the week. A dry
period, with moderating temperature will follow for the end of the
week.


&&

.DISCUSSION...
For Today and this evening...Satellite imagery is matching up
with model guidance showing a vigorous upper level low dropping
south along the Oregon coast this morning. Some wrap around
moisture should make it east of the Cascades this morning to
support some light snow near the north Cascade crest. Snow
accumulations will be very light.

Satellite imagery is also showing the second advertised low
dropping south through Alberta and will give our eastern zones a
glancing blow from late this morning through this evening. Snow
showers should be confined to east of a line from about Colville
to Walla Walla...with the focus over the Panhandle mountains.
Plenty of dynamical lift to work with, but this disturbance is
lacking in any deep moisture. As such while pops are fairly high
through the afternoon and early evening, precipitation amounts are
on the lighter side. Precipitation will be as snow down to the
valley floor. Amounts will vary from a trace to a couple of
hundredths for the lower elevations around Colville...Deer
Park...Spokane metro and Pullman. Around an inch for the northeast
mountains of Washington. The north and central Panhandle mountains
may see anywhere from 2-6 inches.

The northerly flow will result in much cooler air moving into
the region down north-south valleys. The cold air advection
combined with a tightening of the surface pressure gradient, and
30-35kt 850mb winds will increase the winds down the Okanogan
valley and spilling into the Waterville Plateau and the Columbia
basin. The Purcell trench is somewhat protected form this flow but
should still see increase north-northeast winds later this
afternoon and early this evening. Winds will increase by mid day
with sustained winds of 20-30 mph with gusts 30-35 mph through the
afternoon, before decreasing an hour or two after sunset. For the
Purcell trench and spilling into the Spokane-Coeur D`Alene
corridor and into the Palouse north-northeast winds around 20 mph
with gusts 25-30 mph will be possible. This will result in a very
brisk/raw afternoon for the forecast area.

Tonight through Tuesday night...The upper level low will push east
and high pressure will build out around 130-135w. This will put
the forecast area in a dry northwest to northerly flow. Dry air
will push into the region for a drying trend. Some mid level
clouds will linger over the Panhandle mountains, otherwise mostly
sunny conditions. Temperatures will cool considerably. Once the
winds die down this evening and with clearing skies there should
be ample radiational cooling. Minimum temperatures will drop into
the low teens to low 20s both Tuesday and Wednesday morning...with
a few single digits possible for some of our frost-pockets. Max
temperatures will struggle to rise only into the mid 30s to lower
40s. Which is will be 8-10 degrees below normal. Tobin

Wednesday through Thursday night...A weak impulse will track
across the region Wednesday but will likely result in just some
mid to high clouds. Northerly flow will keep temperatures below
seasonal normals for one more day before starting a slow climb to
more seasonal levels as the ridge axis moves toward the coast.
Cold northerly flow will be replaced by a northwest trajectory
that will bring more of a marine influence to the air mass. This
will allow temperatures to start the warming trend with an
increase of about 5 to 7 degrees expected Thursday and again
Thursday night.

Friday through Sunday...medium range models continue to be at odds
concerning a shortwave trough affecting the area Friday into
Friday night. The latest ECMWF guidance continues to bring this
feature southeast across much of the forecast area while the GFS
remains firm in keeping it well to our northeast. No changes made
to this portion of the forecast until models settle on a solution.
For now, low end PoPs will remain over the higher terrain.
temperatures will moderate as the synoptic flow shifts from
northerly to more westerly. /Kelch

&&

.AVIATION...
06Z TAFS: VFR conditions to prevail at most taf sites. High
clouds continue to invade and thicken above in association with
incoming front. Little in way of prolonged and intense
precipitation expected with it so brief MVFR ceilings and
visibilities may be associated with any snow showers which occur.
In the wake of this front the northeast wind will increase in
intensity and be quite gusty from about 5Z Tuesday into the
evening. /Pelatti


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        42  19  34  17  42  23 /  30  10  10   0   0   0
Coeur d`Alene  42  17  35  14  43  20 /  50  20  10   0   0   0
Pullman        42  21  35  17  43  25 /  40  20  10   0   0   0
Lewiston       46  26  39  20  47  26 /  20  20  10   0   0   0
Colville       45  22  39  16  45  21 /  50  10  10   0   0   0
Sandpoint      39  16  33  12  40  20 /  60  30  10   0   0   0
Kellogg        38  17  31  13  40  21 /  80  60  10   0   0   0
Moses Lake     50  24  43  20  47  25 /  10   0   0   0   0   0
Wenatchee      51  27  44  20  49  27 /  10   0   0   0   0   0
Omak           47  22  44  19  48  23 /  10   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$






000
FXUS66 KOTX 020519
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
919 PM PST SUN MAR 1 2015

.SYNOPSIS...
A weak weather system will pass through the region tonight and
Monday with the potential for light snow mainly for the Idaho
Panhandle, along with breezy conditions across much of the region
Monday night. Much colder air moves in behind this system, with
temperatures well below average for the middle of the week. A dry
period, with moderating temperature will follow for the end of
the week.

&&

.DISCUSSION...
Adjustments to the forecast this evening included a increase in
sky cover forecast with the incoming front tonight and some
cooling of forecast lows for tonight based on the trend this
evening. Additionaly have increased some of the northeast wind and
wind gusts expected Monday evening in the wake of this passing
weather system. /Pelatti

&&

.AVIATION...
06Z TAFS: VFR conditons to prevail at most taf sites. High clouds
continue to invade and thicken above in association with incoming
front. Little in way of prolonged and intense precipitation
expected with it so brief MVFR ceilings and visibilities may be
associated with any snow showers which occur. In the wake of this
front the northeast wind will increase in intensity and be quite
gusty from about 5Z Tuesday into the evening. /Pelatti

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        29  42  20  35  17  41 /  10  30  10  10   0   0
Coeur d`Alene  27  42  18  36  14  44 /  10  50  30  10   0   0
Pullman        29  41  21  35  17  44 /   0  40  20  10   0   0
Lewiston       30  46  25  40  20  47 /   0  20  20  10   0   0
Colville       28  44  22  40  16  46 /  10  50  10  10   0   0
Sandpoint      26  39  16  33  12  40 /  10  60  50  10   0   0
Kellogg        26  38  16  31  13  40 /   0  70  70  10   0   0
Moses Lake     32  49  25  44  20  48 /  10  10   0   0   0   0
Wenatchee      32  50  25  44  21  49 /  10  10   0   0   0   0
Omak           29  45  22  45  19  49 /  10  10   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$






000
FXUS66 KOTX 020519
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
919 PM PST SUN MAR 1 2015

.SYNOPSIS...
A weak weather system will pass through the region tonight and
Monday with the potential for light snow mainly for the Idaho
Panhandle, along with breezy conditions across much of the region
Monday night. Much colder air moves in behind this system, with
temperatures well below average for the middle of the week. A dry
period, with moderating temperature will follow for the end of
the week.

&&

.DISCUSSION...
Adjustments to the forecast this evening included a increase in
sky cover forecast with the incoming front tonight and some
cooling of forecast lows for tonight based on the trend this
evening. Additionaly have increased some of the northeast wind and
wind gusts expected Monday evening in the wake of this passing
weather system. /Pelatti

&&

.AVIATION...
06Z TAFS: VFR conditons to prevail at most taf sites. High clouds
continue to invade and thicken above in association with incoming
front. Little in way of prolonged and intense precipitation
expected with it so brief MVFR ceilings and visibilities may be
associated with any snow showers which occur. In the wake of this
front the northeast wind will increase in intensity and be quite
gusty from about 5Z Tuesday into the evening. /Pelatti

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        29  42  20  35  17  41 /  10  30  10  10   0   0
Coeur d`Alene  27  42  18  36  14  44 /  10  50  30  10   0   0
Pullman        29  41  21  35  17  44 /   0  40  20  10   0   0
Lewiston       30  46  25  40  20  47 /   0  20  20  10   0   0
Colville       28  44  22  40  16  46 /  10  50  10  10   0   0
Sandpoint      26  39  16  33  12  40 /  10  60  50  10   0   0
Kellogg        26  38  16  31  13  40 /   0  70  70  10   0   0
Moses Lake     32  49  25  44  20  48 /  10  10   0   0   0   0
Wenatchee      32  50  25  44  21  49 /  10  10   0   0   0   0
Omak           29  45  22  45  19  49 /  10  10   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 020519
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
919 PM PST SUN MAR 1 2015

.SYNOPSIS...
A weak weather system will pass through the region tonight and
Monday with the potential for light snow mainly for the Idaho
Panhandle, along with breezy conditions across much of the region
Monday night. Much colder air moves in behind this system, with
temperatures well below average for the middle of the week. A dry
period, with moderating temperature will follow for the end of
the week.

&&

.DISCUSSION...
Adjustments to the forecast this evening included a increase in
sky cover forecast with the incoming front tonight and some
cooling of forecast lows for tonight based on the trend this
evening. Additionaly have increased some of the northeast wind and
wind gusts expected Monday evening in the wake of this passing
weather system. /Pelatti

&&

.AVIATION...
06Z TAFS: VFR conditons to prevail at most taf sites. High clouds
continue to invade and thicken above in association with incoming
front. Little in way of prolonged and intense precipitation
expected with it so brief MVFR ceilings and visibilities may be
associated with any snow showers which occur. In the wake of this
front the northeast wind will increase in intensity and be quite
gusty from about 5Z Tuesday into the evening. /Pelatti

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        29  42  20  35  17  41 /  10  30  10  10   0   0
Coeur d`Alene  27  42  18  36  14  44 /  10  50  30  10   0   0
Pullman        29  41  21  35  17  44 /   0  40  20  10   0   0
Lewiston       30  46  25  40  20  47 /   0  20  20  10   0   0
Colville       28  44  22  40  16  46 /  10  50  10  10   0   0
Sandpoint      26  39  16  33  12  40 /  10  60  50  10   0   0
Kellogg        26  38  16  31  13  40 /   0  70  70  10   0   0
Moses Lake     32  49  25  44  20  48 /  10  10   0   0   0   0
Wenatchee      32  50  25  44  21  49 /  10  10   0   0   0   0
Omak           29  45  22  45  19  49 /  10  10   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$






000
FXUS66 KOTX 012324
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
324 PM PST SUN MAR 1 2015

.SYNOPSIS...
A weak weather system will pass through the region tonight and
Monday with the potential for light snow mainly for the Idaho
Panhandle, along with breezy conditions across much of the region
Monday night. Much colder air moves in behind this system, with
temperatures well below average for the middle of the week. A dry
period, with moderating temperature will follow for the end of
the week.

&&

.DISCUSSION...
Tonight through Monday Night...Satellite imagery reveals a
northwest trajectory upper level short wave descending down the
Canadian Pacific coast this afternoon. Latest models initialize
this feature plausibly and are in agreement in tracking the
dynamic base of this wave to the west of the forecast area over
the next 24 hours. There is a weaker secondary wave embedded in
the main frontal band over northern British Columbia. While the
main wave will pass harmlessly to the west other than a few snow
showers in the Cascades tonight...the secondary wave will
sideswipe the region and provide some lift and frontal focus over
the Idaho Panhandle during the day on Monday...with some snow
shower activity slopping into far eastern Washington. The deep
basin and Cascades will be too far west to be impacted beyond
increased clouds and stray flurries in the mountains.

In the wake of this wave passage another shot of cold Canadian air
will invade the region Monday night...squeezing through the
northern gaps of the Okanogan Valley and Purcell trench for
blustery...windy and raw conditions overnight and into Tuesday
morning.

* Snow amounts: Scattered to numerous snow showers will arrive early
  Monday over north Idaho and the northeast Washington
  mountains...and spread over the entire Idaho Panhandle during
  the day (with fringing hit- and-miss snow showers over far
  eastern Washington) and linger over the Shoshone County High
  terrain and Camas Prairie Monday night. Snow amounts will range
  from less than an inch in the north Idaho Valleys to two to 4
  inches over the mountains above 4000 feet. Afternoon instability
  promoted by mild upper 30s to low 40s surface temperatures will
  combine with cold temperatures aloft in the cusp of this wave to
  promote instability showers over the threat area. Some of these
  snow showers could be briefly intense but will be mainly focused
  over high terrain. By afternoon road surface temperatures will
  be well above freezing so no significant impacts are expected
  unless an unusually burly shower dumps an inch or so in a short
  time thus overwhelming the specific heat capacity of the road
  surface. This possibility cannot be pinned down with any
  certainty at this time.

* Wind: Monday evening the next dry and cool Canadian air mass
  invasion will commence through the northern mountain gaps.
  Expected gradient orientation suggest the Okanogan Valley will
  be the favored channel for this dense dry air with the Purcell
  trench also receiving a windy push. At this time gradient
  strength does not look sufficient for any wind highlights but a
  solid 20 to 30 mph through the Okanogan and 15 to 25 mph through
  the Purcell trench looks quite plausible. This dense air will
  follow gravity into the deep basin with breezy conditions also
  expected over the Waterville Plateau and into the Moses Lake
  region. Ramifications of this push besides the normal wind
  hazards will be very cool wind chill temperatures Tuesday
  morning across much of the region.

Tuesday through Wednesday...Dry and mostly clear conditions will
return for this period with the next strong upper level ridge
building aloft with continued but diminishing dry northerly flow
at the surface. The main issue will be cold morning low
temperatures particularly on Wednesday morning as winds die out
and radiational cooling becomes dominant. Otherwise...no
significant weather is expected. /Fugazzi

Thursday through Sunday. Very few changes were made to the
extended forecast because very little weather is expected during
this time. The beginning of this time frame will feature an area
of high pressure centered just off shore from San Francisco Bay.
An upper level ridge will extend north and west. The upper level
ridge axis to our west and a broad trough over the eastern half of
the US places the Inland Northwest under northwesterly flow aloft.
The northwesterly flow aloft will usher in the occasional
disturbance bringing increased cloud coverage and enhancing the
chance for precipitation. At this time, a slight chance of
rain/snow was added to the forecast for one of these waves
embedded in the northwest flow. The best chance of precipitation
will occur over far northeastern Washington and the northern Idaho
counties. Otherwise, dry conditions are expected with near to
slightly above average temperatures.

Looking at the weekend and beyond, a very large low will deepen
over the eastern Pacific (near 40N 150W). The extended models are
in great agreement of this feature developing which by the end of
the weekend will displace the upper level ridge directly over the
Pacific Northwest. Then by early next week, the open trough over
the Pacific begins to eject moisture in the form of southwesterly
flow aloft toward our region. While this is typically a warm
pattern, it does introduce the possibility for rain and mountain
snow mid next week. That is well beyond what I feel comfortable
forecasting for but given our warm and dry weather, it`s worth
pointing out any potential changes to this stubborn pattern.
/AB


&&

.AVIATION...
00Z TAFS: VFR conditions can be expected at all TAF sites through
Monday 00z. High clouds will thicken tonight. Some light snow is
possible over the north Cascades tonight but should not effect any
of the TAF sites. On Monday a weak weather disturbance will cross
the area from north to south. scattered -SHSN will develop over
the eastern third of WA and all of north ID. There is a chance of
brief MVFR visibilities in -SN at the KCOE TAF site during the
afternoon and some showers will exist in the vicinity of
KGEG...KSFF...KPUW and KLWS...but the densest concentration of
showers will lay to the east of the TAF sites with isolated _SHSN
over the Cascades. /MJF


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        29  42  20  35  17  41 /  10  30  10  10   0   0
Coeur d`Alene  27  42  18  36  14  44 /  10  50  30  10   0   0
Pullman        29  41  21  35  17  44 /   0  40  20  10   0   0
Lewiston       30  46  25  40  20  47 /   0  20  20  10   0   0
Colville       28  44  22  40  16  46 /  10  50  10  10   0   0
Sandpoint      26  39  16  33  12  40 /  10  60  50  10   0   0
Kellogg        26  38  16  31  13  40 /   0  70  70  10   0   0
Moses Lake     32  49  25  44  20  48 /  10  10   0   0   0   0
Wenatchee      32  50  25  44  21  49 /  10  10   0   0   0   0
Omak           29  45  22  45  19  49 /  10  10   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 012324
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
324 PM PST SUN MAR 1 2015

.SYNOPSIS...
A weak weather system will pass through the region tonight and
Monday with the potential for light snow mainly for the Idaho
Panhandle, along with breezy conditions across much of the region
Monday night. Much colder air moves in behind this system, with
temperatures well below average for the middle of the week. A dry
period, with moderating temperature will follow for the end of
the week.

&&

.DISCUSSION...
Tonight through Monday Night...Satellite imagery reveals a
northwest trajectory upper level short wave descending down the
Canadian Pacific coast this afternoon. Latest models initialize
this feature plausibly and are in agreement in tracking the
dynamic base of this wave to the west of the forecast area over
the next 24 hours. There is a weaker secondary wave embedded in
the main frontal band over northern British Columbia. While the
main wave will pass harmlessly to the west other than a few snow
showers in the Cascades tonight...the secondary wave will
sideswipe the region and provide some lift and frontal focus over
the Idaho Panhandle during the day on Monday...with some snow
shower activity slopping into far eastern Washington. The deep
basin and Cascades will be too far west to be impacted beyond
increased clouds and stray flurries in the mountains.

In the wake of this wave passage another shot of cold Canadian air
will invade the region Monday night...squeezing through the
northern gaps of the Okanogan Valley and Purcell trench for
blustery...windy and raw conditions overnight and into Tuesday
morning.

* Snow amounts: Scattered to numerous snow showers will arrive early
  Monday over north Idaho and the northeast Washington
  mountains...and spread over the entire Idaho Panhandle during
  the day (with fringing hit- and-miss snow showers over far
  eastern Washington) and linger over the Shoshone County High
  terrain and Camas Prairie Monday night. Snow amounts will range
  from less than an inch in the north Idaho Valleys to two to 4
  inches over the mountains above 4000 feet. Afternoon instability
  promoted by mild upper 30s to low 40s surface temperatures will
  combine with cold temperatures aloft in the cusp of this wave to
  promote instability showers over the threat area. Some of these
  snow showers could be briefly intense but will be mainly focused
  over high terrain. By afternoon road surface temperatures will
  be well above freezing so no significant impacts are expected
  unless an unusually burly shower dumps an inch or so in a short
  time thus overwhelming the specific heat capacity of the road
  surface. This possibility cannot be pinned down with any
  certainty at this time.

* Wind: Monday evening the next dry and cool Canadian air mass
  invasion will commence through the northern mountain gaps.
  Expected gradient orientation suggest the Okanogan Valley will
  be the favored channel for this dense dry air with the Purcell
  trench also receiving a windy push. At this time gradient
  strength does not look sufficient for any wind highlights but a
  solid 20 to 30 mph through the Okanogan and 15 to 25 mph through
  the Purcell trench looks quite plausible. This dense air will
  follow gravity into the deep basin with breezy conditions also
  expected over the Waterville Plateau and into the Moses Lake
  region. Ramifications of this push besides the normal wind
  hazards will be very cool wind chill temperatures Tuesday
  morning across much of the region.

Tuesday through Wednesday...Dry and mostly clear conditions will
return for this period with the next strong upper level ridge
building aloft with continued but diminishing dry northerly flow
at the surface. The main issue will be cold morning low
temperatures particularly on Wednesday morning as winds die out
and radiational cooling becomes dominant. Otherwise...no
significant weather is expected. /Fugazzi

Thursday through Sunday. Very few changes were made to the
extended forecast because very little weather is expected during
this time. The beginning of this time frame will feature an area
of high pressure centered just off shore from San Francisco Bay.
An upper level ridge will extend north and west. The upper level
ridge axis to our west and a broad trough over the eastern half of
the US places the Inland Northwest under northwesterly flow aloft.
The northwesterly flow aloft will usher in the occasional
disturbance bringing increased cloud coverage and enhancing the
chance for precipitation. At this time, a slight chance of
rain/snow was added to the forecast for one of these waves
embedded in the northwest flow. The best chance of precipitation
will occur over far northeastern Washington and the northern Idaho
counties. Otherwise, dry conditions are expected with near to
slightly above average temperatures.

Looking at the weekend and beyond, a very large low will deepen
over the eastern Pacific (near 40N 150W). The extended models are
in great agreement of this feature developing which by the end of
the weekend will displace the upper level ridge directly over the
Pacific Northwest. Then by early next week, the open trough over
the Pacific begins to eject moisture in the form of southwesterly
flow aloft toward our region. While this is typically a warm
pattern, it does introduce the possibility for rain and mountain
snow mid next week. That is well beyond what I feel comfortable
forecasting for but given our warm and dry weather, it`s worth
pointing out any potential changes to this stubborn pattern.
/AB


&&

.AVIATION...
00Z TAFS: VFR conditions can be expected at all TAF sites through
Monday 00z. High clouds will thicken tonight. Some light snow is
possible over the north Cascades tonight but should not effect any
of the TAF sites. On Monday a weak weather disturbance will cross
the area from north to south. scattered -SHSN will develop over
the eastern third of WA and all of north ID. There is a chance of
brief MVFR visibilities in -SN at the KCOE TAF site during the
afternoon and some showers will exist in the vicinity of
KGEG...KSFF...KPUW and KLWS...but the densest concentration of
showers will lay to the east of the TAF sites with isolated _SHSN
over the Cascades. /MJF


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        29  42  20  35  17  41 /  10  30  10  10   0   0
Coeur d`Alene  27  42  18  36  14  44 /  10  50  30  10   0   0
Pullman        29  41  21  35  17  44 /   0  40  20  10   0   0
Lewiston       30  46  25  40  20  47 /   0  20  20  10   0   0
Colville       28  44  22  40  16  46 /  10  50  10  10   0   0
Sandpoint      26  39  16  33  12  40 /  10  60  50  10   0   0
Kellogg        26  38  16  31  13  40 /   0  70  70  10   0   0
Moses Lake     32  49  25  44  20  48 /  10  10   0   0   0   0
Wenatchee      32  50  25  44  21  49 /  10  10   0   0   0   0
Omak           29  45  22  45  19  49 /  10  10   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$






000
FXUS66 KOTX 012324
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
324 PM PST SUN MAR 1 2015

.SYNOPSIS...
A weak weather system will pass through the region tonight and
Monday with the potential for light snow mainly for the Idaho
Panhandle, along with breezy conditions across much of the region
Monday night. Much colder air moves in behind this system, with
temperatures well below average for the middle of the week. A dry
period, with moderating temperature will follow for the end of
the week.

&&

.DISCUSSION...
Tonight through Monday Night...Satellite imagery reveals a
northwest trajectory upper level short wave descending down the
Canadian Pacific coast this afternoon. Latest models initialize
this feature plausibly and are in agreement in tracking the
dynamic base of this wave to the west of the forecast area over
the next 24 hours. There is a weaker secondary wave embedded in
the main frontal band over northern British Columbia. While the
main wave will pass harmlessly to the west other than a few snow
showers in the Cascades tonight...the secondary wave will
sideswipe the region and provide some lift and frontal focus over
the Idaho Panhandle during the day on Monday...with some snow
shower activity slopping into far eastern Washington. The deep
basin and Cascades will be too far west to be impacted beyond
increased clouds and stray flurries in the mountains.

In the wake of this wave passage another shot of cold Canadian air
will invade the region Monday night...squeezing through the
northern gaps of the Okanogan Valley and Purcell trench for
blustery...windy and raw conditions overnight and into Tuesday
morning.

* Snow amounts: Scattered to numerous snow showers will arrive early
  Monday over north Idaho and the northeast Washington
  mountains...and spread over the entire Idaho Panhandle during
  the day (with fringing hit- and-miss snow showers over far
  eastern Washington) and linger over the Shoshone County High
  terrain and Camas Prairie Monday night. Snow amounts will range
  from less than an inch in the north Idaho Valleys to two to 4
  inches over the mountains above 4000 feet. Afternoon instability
  promoted by mild upper 30s to low 40s surface temperatures will
  combine with cold temperatures aloft in the cusp of this wave to
  promote instability showers over the threat area. Some of these
  snow showers could be briefly intense but will be mainly focused
  over high terrain. By afternoon road surface temperatures will
  be well above freezing so no significant impacts are expected
  unless an unusually burly shower dumps an inch or so in a short
  time thus overwhelming the specific heat capacity of the road
  surface. This possibility cannot be pinned down with any
  certainty at this time.

* Wind: Monday evening the next dry and cool Canadian air mass
  invasion will commence through the northern mountain gaps.
  Expected gradient orientation suggest the Okanogan Valley will
  be the favored channel for this dense dry air with the Purcell
  trench also receiving a windy push. At this time gradient
  strength does not look sufficient for any wind highlights but a
  solid 20 to 30 mph through the Okanogan and 15 to 25 mph through
  the Purcell trench looks quite plausible. This dense air will
  follow gravity into the deep basin with breezy conditions also
  expected over the Waterville Plateau and into the Moses Lake
  region. Ramifications of this push besides the normal wind
  hazards will be very cool wind chill temperatures Tuesday
  morning across much of the region.

Tuesday through Wednesday...Dry and mostly clear conditions will
return for this period with the next strong upper level ridge
building aloft with continued but diminishing dry northerly flow
at the surface. The main issue will be cold morning low
temperatures particularly on Wednesday morning as winds die out
and radiational cooling becomes dominant. Otherwise...no
significant weather is expected. /Fugazzi

Thursday through Sunday. Very few changes were made to the
extended forecast because very little weather is expected during
this time. The beginning of this time frame will feature an area
of high pressure centered just off shore from San Francisco Bay.
An upper level ridge will extend north and west. The upper level
ridge axis to our west and a broad trough over the eastern half of
the US places the Inland Northwest under northwesterly flow aloft.
The northwesterly flow aloft will usher in the occasional
disturbance bringing increased cloud coverage and enhancing the
chance for precipitation. At this time, a slight chance of
rain/snow was added to the forecast for one of these waves
embedded in the northwest flow. The best chance of precipitation
will occur over far northeastern Washington and the northern Idaho
counties. Otherwise, dry conditions are expected with near to
slightly above average temperatures.

Looking at the weekend and beyond, a very large low will deepen
over the eastern Pacific (near 40N 150W). The extended models are
in great agreement of this feature developing which by the end of
the weekend will displace the upper level ridge directly over the
Pacific Northwest. Then by early next week, the open trough over
the Pacific begins to eject moisture in the form of southwesterly
flow aloft toward our region. While this is typically a warm
pattern, it does introduce the possibility for rain and mountain
snow mid next week. That is well beyond what I feel comfortable
forecasting for but given our warm and dry weather, it`s worth
pointing out any potential changes to this stubborn pattern.
/AB


&&

.AVIATION...
00Z TAFS: VFR conditions can be expected at all TAF sites through
Monday 00z. High clouds will thicken tonight. Some light snow is
possible over the north Cascades tonight but should not effect any
of the TAF sites. On Monday a weak weather disturbance will cross
the area from north to south. scattered -SHSN will develop over
the eastern third of WA and all of north ID. There is a chance of
brief MVFR visibilities in -SN at the KCOE TAF site during the
afternoon and some showers will exist in the vicinity of
KGEG...KSFF...KPUW and KLWS...but the densest concentration of
showers will lay to the east of the TAF sites with isolated _SHSN
over the Cascades. /MJF


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        29  42  20  35  17  41 /  10  30  10  10   0   0
Coeur d`Alene  27  42  18  36  14  44 /  10  50  30  10   0   0
Pullman        29  41  21  35  17  44 /   0  40  20  10   0   0
Lewiston       30  46  25  40  20  47 /   0  20  20  10   0   0
Colville       28  44  22  40  16  46 /  10  50  10  10   0   0
Sandpoint      26  39  16  33  12  40 /  10  60  50  10   0   0
Kellogg        26  38  16  31  13  40 /   0  70  70  10   0   0
Moses Lake     32  49  25  44  20  48 /  10  10   0   0   0   0
Wenatchee      32  50  25  44  21  49 /  10  10   0   0   0   0
Omak           29  45  22  45  19  49 /  10  10   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 012324
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
324 PM PST SUN MAR 1 2015

.SYNOPSIS...
A weak weather system will pass through the region tonight and
Monday with the potential for light snow mainly for the Idaho
Panhandle, along with breezy conditions across much of the region
Monday night. Much colder air moves in behind this system, with
temperatures well below average for the middle of the week. A dry
period, with moderating temperature will follow for the end of
the week.

&&

.DISCUSSION...
Tonight through Monday Night...Satellite imagery reveals a
northwest trajectory upper level short wave descending down the
Canadian Pacific coast this afternoon. Latest models initialize
this feature plausibly and are in agreement in tracking the
dynamic base of this wave to the west of the forecast area over
the next 24 hours. There is a weaker secondary wave embedded in
the main frontal band over northern British Columbia. While the
main wave will pass harmlessly to the west other than a few snow
showers in the Cascades tonight...the secondary wave will
sideswipe the region and provide some lift and frontal focus over
the Idaho Panhandle during the day on Monday...with some snow
shower activity slopping into far eastern Washington. The deep
basin and Cascades will be too far west to be impacted beyond
increased clouds and stray flurries in the mountains.

In the wake of this wave passage another shot of cold Canadian air
will invade the region Monday night...squeezing through the
northern gaps of the Okanogan Valley and Purcell trench for
blustery...windy and raw conditions overnight and into Tuesday
morning.

* Snow amounts: Scattered to numerous snow showers will arrive early
  Monday over north Idaho and the northeast Washington
  mountains...and spread over the entire Idaho Panhandle during
  the day (with fringing hit- and-miss snow showers over far
  eastern Washington) and linger over the Shoshone County High
  terrain and Camas Prairie Monday night. Snow amounts will range
  from less than an inch in the north Idaho Valleys to two to 4
  inches over the mountains above 4000 feet. Afternoon instability
  promoted by mild upper 30s to low 40s surface temperatures will
  combine with cold temperatures aloft in the cusp of this wave to
  promote instability showers over the threat area. Some of these
  snow showers could be briefly intense but will be mainly focused
  over high terrain. By afternoon road surface temperatures will
  be well above freezing so no significant impacts are expected
  unless an unusually burly shower dumps an inch or so in a short
  time thus overwhelming the specific heat capacity of the road
  surface. This possibility cannot be pinned down with any
  certainty at this time.

* Wind: Monday evening the next dry and cool Canadian air mass
  invasion will commence through the northern mountain gaps.
  Expected gradient orientation suggest the Okanogan Valley will
  be the favored channel for this dense dry air with the Purcell
  trench also receiving a windy push. At this time gradient
  strength does not look sufficient for any wind highlights but a
  solid 20 to 30 mph through the Okanogan and 15 to 25 mph through
  the Purcell trench looks quite plausible. This dense air will
  follow gravity into the deep basin with breezy conditions also
  expected over the Waterville Plateau and into the Moses Lake
  region. Ramifications of this push besides the normal wind
  hazards will be very cool wind chill temperatures Tuesday
  morning across much of the region.

Tuesday through Wednesday...Dry and mostly clear conditions will
return for this period with the next strong upper level ridge
building aloft with continued but diminishing dry northerly flow
at the surface. The main issue will be cold morning low
temperatures particularly on Wednesday morning as winds die out
and radiational cooling becomes dominant. Otherwise...no
significant weather is expected. /Fugazzi

Thursday through Sunday. Very few changes were made to the
extended forecast because very little weather is expected during
this time. The beginning of this time frame will feature an area
of high pressure centered just off shore from San Francisco Bay.
An upper level ridge will extend north and west. The upper level
ridge axis to our west and a broad trough over the eastern half of
the US places the Inland Northwest under northwesterly flow aloft.
The northwesterly flow aloft will usher in the occasional
disturbance bringing increased cloud coverage and enhancing the
chance for precipitation. At this time, a slight chance of
rain/snow was added to the forecast for one of these waves
embedded in the northwest flow. The best chance of precipitation
will occur over far northeastern Washington and the northern Idaho
counties. Otherwise, dry conditions are expected with near to
slightly above average temperatures.

Looking at the weekend and beyond, a very large low will deepen
over the eastern Pacific (near 40N 150W). The extended models are
in great agreement of this feature developing which by the end of
the weekend will displace the upper level ridge directly over the
Pacific Northwest. Then by early next week, the open trough over
the Pacific begins to eject moisture in the form of southwesterly
flow aloft toward our region. While this is typically a warm
pattern, it does introduce the possibility for rain and mountain
snow mid next week. That is well beyond what I feel comfortable
forecasting for but given our warm and dry weather, it`s worth
pointing out any potential changes to this stubborn pattern.
/AB


&&

.AVIATION...
00Z TAFS: VFR conditions can be expected at all TAF sites through
Monday 00z. High clouds will thicken tonight. Some light snow is
possible over the north Cascades tonight but should not effect any
of the TAF sites. On Monday a weak weather disturbance will cross
the area from north to south. scattered -SHSN will develop over
the eastern third of WA and all of north ID. There is a chance of
brief MVFR visibilities in -SN at the KCOE TAF site during the
afternoon and some showers will exist in the vicinity of
KGEG...KSFF...KPUW and KLWS...but the densest concentration of
showers will lay to the east of the TAF sites with isolated _SHSN
over the Cascades. /MJF


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        29  42  20  35  17  41 /  10  30  10  10   0   0
Coeur d`Alene  27  42  18  36  14  44 /  10  50  30  10   0   0
Pullman        29  41  21  35  17  44 /   0  40  20  10   0   0
Lewiston       30  46  25  40  20  47 /   0  20  20  10   0   0
Colville       28  44  22  40  16  46 /  10  50  10  10   0   0
Sandpoint      26  39  16  33  12  40 /  10  60  50  10   0   0
Kellogg        26  38  16  31  13  40 /   0  70  70  10   0   0
Moses Lake     32  49  25  44  20  48 /  10  10   0   0   0   0
Wenatchee      32  50  25  44  21  49 /  10  10   0   0   0   0
Omak           29  45  22  45  19  49 /  10  10   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$






000
FXUS66 KOTX 012221
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
221 PM PST SUN MAR 1 2015

.SYNOPSIS...
A weak weather system will pass through the region tonight and
Monday with the potential for light snow mainly for the Idaho
Panhandle, along with breezy conditions across much of the region
Monday night. Much colder air moves in behind this system, with
temperatures well below average for the middle of the week. A dry
period, with moderating temperature will follow for the end of
the week.

&&

.DISCUSSION...
Tonight through Monday Night...Satellite imagery reveals a
northwest trajectory upper level short wave descending down the
Canadian Pacific coast this afternoon. Latest models initialize
this feature plausibly and are in agreement in tracking the
dynamic base of this wave to the west of the forecast area over
the next 24 hours. There is a weaker secondary wave embedded in
the main frontal band over northern British Columbia. While the
main wave will pass harmlessly to the west other than a few snow
showers in the Cascades tonight...the secondary wave will
sideswipe the region and provide some lift and frontal focus over
the Idaho Panhandle during the day on Monday...with some snow
shower activity slopping into far eastern Washington. The deep
basin and Cascades will be too far west to be impacted beyond
increased clouds and stray flurries in the mountains.

In the wake of this wave passage another shot of cold Canadian air
will invade the region Monday night...squeezing through the
northern gaps of the Okanogan Valley and Purcell trench for
blustery...windy and raw conditions overnight and into Tuesday
morning.

* Snow amounts: Scattered to numerous snow showers will arrive early
  Monday over north Idaho and the northeast Washington
  mountains...and spread over the entire Idaho Panhandle during
  the day (with fringing hit- and-miss snow showers over far
  eastern Washington) and linger over the Shoshone County High
  terrain and Camas Prairie Monday night. Snow amounts will range
  from less than an inch in the north Idaho Valleys to two to 4
  inches over the mountains above 4000 feet. Afternoon instability
  promoted by mild upper 30s to low 40s surface temperatures will
  combine with cold temperatures aloft in the cusp of this wave to
  promote instability showers over the threat area. Some of these
  snow showers could be briefly intense but will be mainly focused
  over high terrain. By afternoon road surface temperatures will
  be well above freezing so no significant impacts are expected
  unless an unusually burly shower dumps an inch or so in a short
  time thus overwhelming the specific heat capacity of the road
  surface. This possibility cannot be pinned down with any
  certainty at this time.

* Wind: Monday evening the next dry and cool Canadian air mass
  invasion will commence through the northern mountain gaps.
  Expected gradient orientation suggest the Okanogan Valley will
  be the favored channel for this dense dry air with the Purcell
  trench also receiving a windy push. At this time gradient
  strength does not look sufficient for any wind highlights but a
  solid 20 to 30 mph through the Okanogan and 15 to 25 mph through
  the Purcell trench looks quite plausible. This dense air will
  follow gravity into the deep basin with breezy conditions also
  expected over the Waterville Plateau and into the Moses Lake
  region. Ramifications of this push besides the normal wind
  hazards will be very cool wind chill temperatures Tuesday
  morning across much of the region.

Tuesday through Wednesday...Dry and mostly clear conditions will
return for this period with the next strong upper level ridge
building aloft with continued but diminishing dry northerly flow
at the surface. The main issue will be cold morning low
temperatures particularly on Wednesday morning as winds die out
and radiational cooling becomes dominant. Otherwise...no
significant weather is expected. /Fugazzi

Thursday through Sunday. Very few changes were made to the
extended forecast because very little weather is expected during
this time. The beginning of this time frame will feature an area
of high pressure centered just off shore from San Francisco Bay.
An upper level ridge will extend north and west. The upper level
ridge axis to our west and a broad trough over the eastern half of
the US places the Inland Northwest under northwesterly flow aloft.
The northwesterly flow aloft will usher in the occasional
disturbance bringing increased cloud coverage and enhancing the
chance for precipitation. At this time, a slight chance of
rain/snow was added to the forecast for one of these waves
embedded in the northwest flow. The best chance of precipitation
will occur over far northeastern Washington and the northern Idaho
counties. Otherwise, dry conditions are expected with near to
slightly above average temperatures.

Looking at the weekend and beyond, a very large low will deepen
over the eastern Pacific (near 40N 150W). The extended models are
in great agreement of this feature developing which by the end of
the weekend will displace the upper level ridge directly over the
Pacific Northwest. Then by early next week, the open trough over
the Pacific begins to eject moisture in the form of southwesterly
flow aloft toward our region. While this is typically a warm
pattern, it does introduce the possibility for rain and mountain
snow mid next week. That is well beyond what I feel comfortable
forecasting for but given our warm and dry weather, it`s worth
pointing out any potential changes to this stubborn pattern.
/AB


&&

.AVIATION...
18Z TAFS: VFR conditions can be expected at all TAF sites through
Monday 18z. High clouds will be on the increase this morning from
the north...then thicken tonight. Some light snow is possible over
the north Cascades tonight but should not effect any of the TAF
sites. Winds will be light. /MJF


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        29  42  20  35  17  41 /  10  30  10  10   0   0
Coeur d`Alene  27  42  18  36  14  44 /  10  50  30  10   0   0
Pullman        29  41  21  35  17  44 /   0  40  20  10   0   0
Lewiston       30  46  25  40  20  47 /   0  20  20  10   0   0
Colville       28  44  22  40  16  46 /  10  50  10  10   0   0
Sandpoint      26  39  16  33  12  40 /  10  60  50  10   0   0
Kellogg        26  38  16  31  13  40 /   0  70  70  10   0   0
Moses Lake     32  49  25  44  20  48 /  10  10   0   0   0   0
Wenatchee      32  50  25  44  21  49 /  10  10   0   0   0   0
Omak           29  45  22  45  19  49 /  10  10   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$






000
FXUS66 KOTX 011737
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
937 AM PST SUN MAR 1 2015

.SYNOPSIS...
Dry, seasonal conditions will be found across the region today. A
weather system will pass through tonight into early Tuesday with
the potential for light snow, especially for the Idaho Panhandle,
along with breezy conditions. Much colder air moves in behind this
system, with temperatures well below average for the middle of
next week. A dry period, with moderating temperature will follow
for the end of next week.

&&

.DISCUSSION...
Another day of dry and benign conditions albeit with increasing
high and mid level clouds to filter or occlude the sun especially
over the eastern half of the forecast area. Winds will be light
and variable with temperatures recovering off of chilly morning
lows to near or slightly below average. A weak and shearing wave
is descending out of Canada today. This will promote increasing
clouds but nothing beyond that. Any actual precipitation from this
incoming feature will be holding off until Monday and latest
models suggest the potential for only light snow concentrated
mainly over Idaho. Refining this forecast will be the focus of the
afternoon package effort. minimal updates to the Today forecast
to increase cloud cover. /Fugazzi

&&

.AVIATION...
18Z TAFS: VFR conditions can be expected at all TAF sites through
Monday 18z. High clouds will be on the increase this morning from
the north...then thicken tonight. Some light snow is possible over
the north Cascades tonight but should not effect any of the TAF
sites. Winds will be light. /MJF

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        44  27  41  20  33  17 /   0   0  30  10  10   0
Coeur d`Alene  45  25  41  18  33  14 /   0   0  60  30  10   0
Pullman        45  28  41  22  33  17 /   0   0  30  20  10   0
Lewiston       46  29  44  26  38  20 /   0   0  30  20  10   0
Colville       47  27  45  23  37  16 /   0  10  30  20  10   0
Sandpoint      40  24  38  17  31  12 /   0  10  60  70  10   0
Kellogg        41  26  38  18  29  13 /   0   0  60  70  10   0
Moses Lake     49  30  50  25  42  20 /   0   0  10   0   0   0
Wenatchee      50  32  50  27  42  21 /   0   0  10   0   0   0
Omak           50  29  50  23  43  19 /   0  10  10   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 011737
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
937 AM PST SUN MAR 1 2015

.SYNOPSIS...
Dry, seasonal conditions will be found across the region today. A
weather system will pass through tonight into early Tuesday with
the potential for light snow, especially for the Idaho Panhandle,
along with breezy conditions. Much colder air moves in behind this
system, with temperatures well below average for the middle of
next week. A dry period, with moderating temperature will follow
for the end of next week.

&&

.DISCUSSION...
Another day of dry and benign conditions albeit with increasing
high and mid level clouds to filter or occlude the sun especially
over the eastern half of the forecast area. Winds will be light
and variable with temperatures recovering off of chilly morning
lows to near or slightly below average. A weak and shearing wave
is descending out of Canada today. This will promote increasing
clouds but nothing beyond that. Any actual precipitation from this
incoming feature will be holding off until Monday and latest
models suggest the potential for only light snow concentrated
mainly over Idaho. Refining this forecast will be the focus of the
afternoon package effort. minimal updates to the Today forecast
to increase cloud cover. /Fugazzi

&&

.AVIATION...
18Z TAFS: VFR conditions can be expected at all TAF sites through
Monday 18z. High clouds will be on the increase this morning from
the north...then thicken tonight. Some light snow is possible over
the north Cascades tonight but should not effect any of the TAF
sites. Winds will be light. /MJF

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        44  27  41  20  33  17 /   0   0  30  10  10   0
Coeur d`Alene  45  25  41  18  33  14 /   0   0  60  30  10   0
Pullman        45  28  41  22  33  17 /   0   0  30  20  10   0
Lewiston       46  29  44  26  38  20 /   0   0  30  20  10   0
Colville       47  27  45  23  37  16 /   0  10  30  20  10   0
Sandpoint      40  24  38  17  31  12 /   0  10  60  70  10   0
Kellogg        41  26  38  18  29  13 /   0   0  60  70  10   0
Moses Lake     49  30  50  25  42  20 /   0   0  10   0   0   0
Wenatchee      50  32  50  27  42  21 /   0   0  10   0   0   0
Omak           50  29  50  23  43  19 /   0  10  10   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$






000
FXUS66 KOTX 011156
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
356 AM PST SUN MAR 1 2015

.SYNOPSIS...
Dry, seasonal conditions will be found across the region today. A
weather system will pass through tonight into early Tuesday with
the potential for light snow, especially for the Idaho Panhandle,
along with breezy conditions. Much colder air moves in behind this
system, with temperatures well below average for the middle of
next week. A dry period, with moderating temperature will follow
for the end of next week.


&&

.DISCUSSION...
For Today...A dry forecast is expected today as the region
will be in between weather systems. Another low pressure system
moving down out of BC will advect upper level moisture for an
increase in mainly high level clouds through the day. Temperatures
a couple of degrees warmer than on Saturday. Winds will be light
out of the east.

Tonight through Monday night...The next upper level low currently
moving through the Gulf of Alaska will spin off a weaker wave of
energy that will drop south along the coast...while the main upper
low drops south along the Continental Divide. The weaker wave will
tap into some Pacific moisture and result in a chance for short
period of snow along the Cascades crest. Snow accumulations of up
to an inch will be possible.

Better dynamics but not nearly as much moisture will track south
along the Idaho/Montana border Monday and Monday evening with the
stronger wave. The best chance for precipitation will be along and
just west of the border but light precipitation will be possible
as far west as Colville south to about Walla Walla. With little
moisture to work with precipitation amounts will be light. Snow
levels will be down to valley floors. Snow amounts will vary.
Accumulations from a trace to a couple of tenths of snow for the
West Plains and the Palouse...including the Spokane-Coeur D`Alene
metro area...Colville and possibly Pullman. The Panhandle
mountains will see around an inch or two with 2-3 inches possible
for the highest terrain. As you can see this is far from a big
snow producer.

Cold advection will cool temperatures down to the cool side of
normal for Monday. Minimum temperatures will drop down into the
mid teens to lower lower 20s. The pressure gradient will tighten
from the north Monday and Monday night. 850Mb winds will increase
to 20-30kts and with the cold air advection these winds will have
the potential to mix down to the surface through the afternoon and
evening hours. Winds will increase down the Okanogan valley and
then spill out into the Columbia basin. North winds of 10-20 mph
with gusts 25-30 mph. The stronger winds will result in wind
chills to drop down into the lower teens for the Okanogan valley.
Tobin

Tuesday through Wednesday night...An upper level trough will move
off to the southeast Tuesday with a few lingering snow showers for
the Idaho panhandle. Behind this system the region will be under
cooler northerly flow and daytime temperatures will remain below
seasonal normals. Northerly winds will be channeled down the
Okanogan valley and Purcell trench but the surface pressure
gradient will quickly relax. Clearing skies and light winds
overnight Tuesday will allow maximum efficiency of radiational
cooling. Min temperatures in the teens will be quite common across
the Inland Northwest in the dry continental airmass. By Wednesday
night we may see some clouds move over the region as a weak
shortwave moves through the area. Flow aloft will also shift from
north to northwest with more of a marine influence. This will
allow overnight temperatures to moderate somewhat while remaining
on the cool side of climo.

Thursday through Saturday...the ridge of high pressure will remain
over the region with dry conditions and more seasonal temperatures
prevailing. Medium range models diverge on the track of the next
shortwave trough that could bring some precip to the forecast area
Thursday night into Friday. Latest run of the GFS brings some
moisture to NE WA and the Idaho panhandle while the ECMWF keeps it
well to our north. For now we will keep dry conditions in the
forecast. /Kelch

&&

.AVIATION...
12Z TAFS: VFR conditions can be expected at all TAF sites through
Monday 12z. High clouds will be on the increase this morning from
the north...then thicken tonight. Some light snow is possible over
the north Cascades tonight but should not effect any of the TAF
sites. Winds will be light out of the northeast-east
today...becoming southerly overnight. Tobin


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        43  27  41  20  33  17 /   0   0  30  10  10   0
Coeur d`Alene  45  25  41  18  33  14 /   0   0  60  30  10   0
Pullman        43  28  41  22  33  17 /   0   0  30  20  10   0
Lewiston       46  29  44  26  38  20 /   0   0  30  20  10   0
Colville       47  27  45  23  37  16 /   0  10  30  20  10   0
Sandpoint      40  24  38  17  31  12 /   0  10  60  70  10   0
Kellogg        41  26  38  18  29  13 /   0   0  60  70  10   0
Moses Lake     49  30  50  25  42  20 /   0   0  10   0   0   0
Wenatchee      50  32  50  27  42  21 /   0   0  10   0   0   0
Omak           50  29  50  23  43  19 /   0  10  10   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 011156
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
356 AM PST SUN MAR 1 2015

.SYNOPSIS...
Dry, seasonal conditions will be found across the region today. A
weather system will pass through tonight into early Tuesday with
the potential for light snow, especially for the Idaho Panhandle,
along with breezy conditions. Much colder air moves in behind this
system, with temperatures well below average for the middle of
next week. A dry period, with moderating temperature will follow
for the end of next week.


&&

.DISCUSSION...
For Today...A dry forecast is expected today as the region
will be in between weather systems. Another low pressure system
moving down out of BC will advect upper level moisture for an
increase in mainly high level clouds through the day. Temperatures
a couple of degrees warmer than on Saturday. Winds will be light
out of the east.

Tonight through Monday night...The next upper level low currently
moving through the Gulf of Alaska will spin off a weaker wave of
energy that will drop south along the coast...while the main upper
low drops south along the Continental Divide. The weaker wave will
tap into some Pacific moisture and result in a chance for short
period of snow along the Cascades crest. Snow accumulations of up
to an inch will be possible.

Better dynamics but not nearly as much moisture will track south
along the Idaho/Montana border Monday and Monday evening with the
stronger wave. The best chance for precipitation will be along and
just west of the border but light precipitation will be possible
as far west as Colville south to about Walla Walla. With little
moisture to work with precipitation amounts will be light. Snow
levels will be down to valley floors. Snow amounts will vary.
Accumulations from a trace to a couple of tenths of snow for the
West Plains and the Palouse...including the Spokane-Coeur D`Alene
metro area...Colville and possibly Pullman. The Panhandle
mountains will see around an inch or two with 2-3 inches possible
for the highest terrain. As you can see this is far from a big
snow producer.

Cold advection will cool temperatures down to the cool side of
normal for Monday. Minimum temperatures will drop down into the
mid teens to lower lower 20s. The pressure gradient will tighten
from the north Monday and Monday night. 850Mb winds will increase
to 20-30kts and with the cold air advection these winds will have
the potential to mix down to the surface through the afternoon and
evening hours. Winds will increase down the Okanogan valley and
then spill out into the Columbia basin. North winds of 10-20 mph
with gusts 25-30 mph. The stronger winds will result in wind
chills to drop down into the lower teens for the Okanogan valley.
Tobin

Tuesday through Wednesday night...An upper level trough will move
off to the southeast Tuesday with a few lingering snow showers for
the Idaho panhandle. Behind this system the region will be under
cooler northerly flow and daytime temperatures will remain below
seasonal normals. Northerly winds will be channeled down the
Okanogan valley and Purcell trench but the surface pressure
gradient will quickly relax. Clearing skies and light winds
overnight Tuesday will allow maximum efficiency of radiational
cooling. Min temperatures in the teens will be quite common across
the Inland Northwest in the dry continental airmass. By Wednesday
night we may see some clouds move over the region as a weak
shortwave moves through the area. Flow aloft will also shift from
north to northwest with more of a marine influence. This will
allow overnight temperatures to moderate somewhat while remaining
on the cool side of climo.

Thursday through Saturday...the ridge of high pressure will remain
over the region with dry conditions and more seasonal temperatures
prevailing. Medium range models diverge on the track of the next
shortwave trough that could bring some precip to the forecast area
Thursday night into Friday. Latest run of the GFS brings some
moisture to NE WA and the Idaho panhandle while the ECMWF keeps it
well to our north. For now we will keep dry conditions in the
forecast. /Kelch

&&

.AVIATION...
12Z TAFS: VFR conditions can be expected at all TAF sites through
Monday 12z. High clouds will be on the increase this morning from
the north...then thicken tonight. Some light snow is possible over
the north Cascades tonight but should not effect any of the TAF
sites. Winds will be light out of the northeast-east
today...becoming southerly overnight. Tobin


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        43  27  41  20  33  17 /   0   0  30  10  10   0
Coeur d`Alene  45  25  41  18  33  14 /   0   0  60  30  10   0
Pullman        43  28  41  22  33  17 /   0   0  30  20  10   0
Lewiston       46  29  44  26  38  20 /   0   0  30  20  10   0
Colville       47  27  45  23  37  16 /   0  10  30  20  10   0
Sandpoint      40  24  38  17  31  12 /   0  10  60  70  10   0
Kellogg        41  26  38  18  29  13 /   0   0  60  70  10   0
Moses Lake     49  30  50  25  42  20 /   0   0  10   0   0   0
Wenatchee      50  32  50  27  42  21 /   0   0  10   0   0   0
Omak           50  29  50  23  43  19 /   0  10  10   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$






000
FXUS66 KOTX 011019
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
219 AM PST SUN MAR 1 2015

.SYNOPSIS...
Dry, seasonal conditions will be found across the region today. A
weather system will pass through tonight into early Tuesday with
the potential for light snow, especially for the Idaho Panhandle,
along with breezy conditions. Much colder air moves in behind this
system, with temperatures well below average for the middle of
next week. A dry period, with moderating temperature will follow
for the end of next week.


&&

.DISCUSSION...
For Today...A dry forecast is expected today as the region
will be in between weather systems. Another low pressure system
moving down out of BC will advect upper level moisture for an
increase in mainly high level clouds through the day. Temperatures
a couple of degrees warmer than on Saturday. Winds will be light
out of the east.

Tonight through Monday night...The next upper level low currently
moving through the Gulf of Alaska will spin off a weaker wave of
energy that will drop south along the coast...while the main upper
low drops south along the Continental Divide. The weaker wave will
tap into some Pacific moisture and result in a chance for short
period of snow along the Cascades crest. Snow accumulations of up
to an inch will be possible.

Better dynamics but not nearly as much moisture will track south
along the Idaho/Montana border Monday and Monday evening with the
stronger wave. The best chance for precipitation will be along and
just west of the border but light precipitation will be possible
as far west as Colville south to about Walla Walla. With little
moisture to work with precipitation amounts will be light. Snow
levels will be down to valley floors. Snow amounts will vary.
Accumulations from a trace to a couple of tenths of snow for the
West Plains and the Palouse...including the Spokane-Coeur D`Alene
metro area...Colville and possibly Pullman. The Panhandle
mountains will see around an inch or two with 2-3 inches possible
for the highest terrain. As you can see this is far from a big
snow producer.

Cold advection will cool temperatures down to the cool side of
normal for Monday. Minimum temperatures will drop down into the
mid teens to lower lower 20s. The pressure gradient will tighten
from the north Monday and Monday night. 850Mb winds will increase
to 20-30kts and with the cold air advection these winds will have
the potential to mix down to the surface through the afternoon and
evening hours. Winds will increase down the Okanogan valley and
then spill out into the Columbia basin. North winds of 10-20 mph
with gusts 25-30 mph. The stronger winds will result in wind
chills to drop down into the lower teens for the Okanogan valley.
Tobin

Tuesday through Wednesday night...An upper level trough will move
off to the southeast Tuesday with a few lingering snow showers for
the Idaho panhandle. Behind this system the region will be under
cooler northerly flow and daytime temperatures will remain below
seasonal normals. Northerly winds will be channeled down the
Okanogan valley and Purcell trench but the surface pressure
gradient will quickly relax. Clearing skies and light winds
overnight Tuesday will allow maximum efficiency of radiational
cooling. Min temperatures in the teens will be quite common across
the Inland Northwest in the dry continental airmass. By Wednesday
night we may see some clouds move over the region as a weak
shortwave moves through the area. Flow aloft will also shift from
north to northwest with more of a marine influence. This will
allow overnight temperatures to moderate somewhat while remaining
on the cool side of climo.

Thursday through Saturday...the ridge of high pressure will remain
over the region with dry conditions and more seasonal temperatures
prevailing. Medium range models diverge on the track of the next
shortwave trough that could bring some precip to the forecast area
Thursday night into Friday. Latest run of the GFS brings some
moisture to NE WA and the Idaho panhandle while the ECMWF keeps it
well to our north. For now we will keep dry conditions in the
forecast. /Kelch

&&

.AVIATION...
06Z TAFS: VFR conditions can be expected at all TAF sites through
Sunday. Thin high clouds will move in from the north overnight and
lower slightly and thicken some by Sunday afternoon.


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        43  27  41  20  33  17 /   0   0  30  10  10   0
Coeur d`Alene  45  25  41  18  33  14 /   0   0  60  30  10   0
Pullman        43  28  41  22  33  17 /   0   0  30  20  10   0
Lewiston       46  29  44  26  38  20 /   0   0  30  20  10   0
Colville       47  27  45  23  37  16 /   0  10  30  20  10   0
Sandpoint      40  24  38  17  31  12 /   0  10  60  70  10   0
Kellogg        41  26  38  18  29  13 /   0   0  60  70  10   0
Moses Lake     49  30  50  25  42  20 /   0   0  10   0   0   0
Wenatchee      50  32  50  27  42  21 /   0   0  10   0   0   0
Omak           50  29  50  23  43  19 /   0  10  10   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$






000
FXUS66 KOTX 011019
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
219 AM PST SUN MAR 1 2015

.SYNOPSIS...
Dry, seasonal conditions will be found across the region today. A
weather system will pass through tonight into early Tuesday with
the potential for light snow, especially for the Idaho Panhandle,
along with breezy conditions. Much colder air moves in behind this
system, with temperatures well below average for the middle of
next week. A dry period, with moderating temperature will follow
for the end of next week.


&&

.DISCUSSION...
For Today...A dry forecast is expected today as the region
will be in between weather systems. Another low pressure system
moving down out of BC will advect upper level moisture for an
increase in mainly high level clouds through the day. Temperatures
a couple of degrees warmer than on Saturday. Winds will be light
out of the east.

Tonight through Monday night...The next upper level low currently
moving through the Gulf of Alaska will spin off a weaker wave of
energy that will drop south along the coast...while the main upper
low drops south along the Continental Divide. The weaker wave will
tap into some Pacific moisture and result in a chance for short
period of snow along the Cascades crest. Snow accumulations of up
to an inch will be possible.

Better dynamics but not nearly as much moisture will track south
along the Idaho/Montana border Monday and Monday evening with the
stronger wave. The best chance for precipitation will be along and
just west of the border but light precipitation will be possible
as far west as Colville south to about Walla Walla. With little
moisture to work with precipitation amounts will be light. Snow
levels will be down to valley floors. Snow amounts will vary.
Accumulations from a trace to a couple of tenths of snow for the
West Plains and the Palouse...including the Spokane-Coeur D`Alene
metro area...Colville and possibly Pullman. The Panhandle
mountains will see around an inch or two with 2-3 inches possible
for the highest terrain. As you can see this is far from a big
snow producer.

Cold advection will cool temperatures down to the cool side of
normal for Monday. Minimum temperatures will drop down into the
mid teens to lower lower 20s. The pressure gradient will tighten
from the north Monday and Monday night. 850Mb winds will increase
to 20-30kts and with the cold air advection these winds will have
the potential to mix down to the surface through the afternoon and
evening hours. Winds will increase down the Okanogan valley and
then spill out into the Columbia basin. North winds of 10-20 mph
with gusts 25-30 mph. The stronger winds will result in wind
chills to drop down into the lower teens for the Okanogan valley.
Tobin

Tuesday through Wednesday night...An upper level trough will move
off to the southeast Tuesday with a few lingering snow showers for
the Idaho panhandle. Behind this system the region will be under
cooler northerly flow and daytime temperatures will remain below
seasonal normals. Northerly winds will be channeled down the
Okanogan valley and Purcell trench but the surface pressure
gradient will quickly relax. Clearing skies and light winds
overnight Tuesday will allow maximum efficiency of radiational
cooling. Min temperatures in the teens will be quite common across
the Inland Northwest in the dry continental airmass. By Wednesday
night we may see some clouds move over the region as a weak
shortwave moves through the area. Flow aloft will also shift from
north to northwest with more of a marine influence. This will
allow overnight temperatures to moderate somewhat while remaining
on the cool side of climo.

Thursday through Saturday...the ridge of high pressure will remain
over the region with dry conditions and more seasonal temperatures
prevailing. Medium range models diverge on the track of the next
shortwave trough that could bring some precip to the forecast area
Thursday night into Friday. Latest run of the GFS brings some
moisture to NE WA and the Idaho panhandle while the ECMWF keeps it
well to our north. For now we will keep dry conditions in the
forecast. /Kelch

&&

.AVIATION...
06Z TAFS: VFR conditions can be expected at all TAF sites through
Sunday. Thin high clouds will move in from the north overnight and
lower slightly and thicken some by Sunday afternoon.


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        43  27  41  20  33  17 /   0   0  30  10  10   0
Coeur d`Alene  45  25  41  18  33  14 /   0   0  60  30  10   0
Pullman        43  28  41  22  33  17 /   0   0  30  20  10   0
Lewiston       46  29  44  26  38  20 /   0   0  30  20  10   0
Colville       47  27  45  23  37  16 /   0  10  30  20  10   0
Sandpoint      40  24  38  17  31  12 /   0  10  60  70  10   0
Kellogg        41  26  38  18  29  13 /   0   0  60  70  10   0
Moses Lake     49  30  50  25  42  20 /   0   0  10   0   0   0
Wenatchee      50  32  50  27  42  21 /   0   0  10   0   0   0
Omak           50  29  50  23  43  19 /   0  10  10   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 010545
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
945 PM PST SAT FEB 28 2015

.SYNOPSIS...
Dry, seasonal conditions will found across the Inland Northwest
this weekend. A weather system will pass through Monday into early
Tuesday with the potential for light snow, especially for the
Idaho Panhandle, with breezy conditions. Much colder air moves in
behind this system, with temperatures well below average for the
middle of next week. A dry period, with moderating temperature
will follow for the end of next week.

&&

.DISCUSSION...
Tonight through Sunday night: A dry continental air mass will
reside over the region delivering mostly clear skies and seasonal
temperatures. The region remains under broad northwest flow aloft
with one disturbance well to the south and another tracking across
through the Gulf of Alaska. Consequently, shortwave ridging will
be the dominate weather feature through the remainder of the
weekend. Winds are currently at their peak and will continue to
wane this evening and overnight. Dew points are extremely dry
with many locations reporting teens to single digits. As winds
calm overnight, look for temperatures to rapidly cool with
readings Sunday morning into the teens to lower 20s. Without
sufficient mixing (i.e. winds) returning Sunday, temperatures
will remain cool but should recover back into the 40s...very close
to March 1st normals. The aforementioned disturbance in the Gulf
of AK will track into Northwestern WA late Sunday night with the
potential for light snow reaching the Cascade Crest by early
Monday morning. Amounts through this period will be light with the
potential for a few tenths after midnight but before sunrise. /sb

Monday through Saturday: The next system drops across the Pacific
Northwest early in the week, with some snow threat and another
shot of cold air, before milder and relatively drier conditions
return.  Between Monday and Tuesday night a couple mid-level
shortwave dives across western Canada and the northwest United
States. Models have been consistently in disagreement over the
past few days over the evolution of the second wave, however this
morning the wetter ECMWF trended toward the other drier guidance.
One shortwave will be sliding south along the WA/OR coastline
early Monday, bringing some shower chances to the Cascades early.
A second shortwave slips by northeast WA/north ID and MT Monday
afternoon into Monday night. This will ramp up precipitation
chances across the eastern third of WA and north ID, especially
during the afternoon and evening. Overnight into Tuesday drier air
comes in on the a north-northwest flow, with a weakening surface
trough/deformation axis. There will be a lingering shower threat
across the central Panhandle and Camas Prairie, as well as about
the mtns of northeast WA and north ID, but by this time the threat
of significant precipitation will be ending.

As for precipitation-type, snow looks predominant. However during
the afternoon hours surface temperatures warming above freezing
will limit the potential for accumulation outside of the
mountains. Overall it still looks like about 1 to 2 inches in the
eastern mountains and less than an inch in the valleys, if
anything accumulates at all in the valleys that is.

Behind the precipitation threat comes increased winds and that
next push of cold air. In general, however, look for increasing
northerly winds between Monday afternoon and Tuesday. The speeds
abate through the Tuesday night. Tuesday afternoon temperatures
are expected to be below normal by 5 to 10 degrees, followed by
lows dropping some 10 to 15 degrees below normal Tuesday night in
an atmosphere more conducive to good rational cooling (i.e. dry,
with few clouds and lighter winds). This means lows in the singles
digits and teens Tuesday night/Wednesday morning.

Between Wednesday and Saturday the rebounded ridge is eventually
dampened again by another shortwave trough moving in from the
west. The primary wave stays north of the Canadian border, but
some weaker ripples do skim in on an the westerly flow. For the
most part the forecast is dry, but a few isolated showers cannot
be ruled out near the immediate Canadian border toward the end of
the work week. The rebounding ridge is also accompanied by some
milder air, so look for temperatures to moderate back toward
normal and, by Friday, slightly above normal again. /J. Cote`


&&

.AVIATION...
06Z TAFS: VFR conditions can be expected at all TAF sites through
Sunday. Thin high clouds will move in from the north overnight and
lower slightly and thicken some by Sunday afternoon.

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        18  42  26  41  21  33 /   0   0   0  20  20  10
Coeur d`Alene  17  44  24  40  18  33 /   0   0   0  30  30  10
Pullman        20  44  27  40  22  33 /   0   0   0  30  20  10
Lewiston       24  47  28  44  26  38 /   0   0   0  20  20  10
Colville       19  47  26  44  22  37 /   0   0  10  20  20  10
Sandpoint      16  41  23  38  17  31 /   0   0  10  60  60  10
Kellogg        16  41  24  37  17  29 /   0   0   0  60  60  20
Moses Lake     23  48  29  49  26  42 /   0   0  10  10   0   0
Wenatchee      26  49  29  49  25  42 /   0   0  10  10   0   0
Omak           23  51  27  49  23  43 /   0   0  10  10   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&





000
FXUS66 KOTX 010545
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
945 PM PST SAT FEB 28 2015

.SYNOPSIS...
Dry, seasonal conditions will found across the Inland Northwest
this weekend. A weather system will pass through Monday into early
Tuesday with the potential for light snow, especially for the
Idaho Panhandle, with breezy conditions. Much colder air moves in
behind this system, with temperatures well below average for the
middle of next week. A dry period, with moderating temperature
will follow for the end of next week.

&&

.DISCUSSION...
Tonight through Sunday night: A dry continental air mass will
reside over the region delivering mostly clear skies and seasonal
temperatures. The region remains under broad northwest flow aloft
with one disturbance well to the south and another tracking across
through the Gulf of Alaska. Consequently, shortwave ridging will
be the dominate weather feature through the remainder of the
weekend. Winds are currently at their peak and will continue to
wane this evening and overnight. Dew points are extremely dry
with many locations reporting teens to single digits. As winds
calm overnight, look for temperatures to rapidly cool with
readings Sunday morning into the teens to lower 20s. Without
sufficient mixing (i.e. winds) returning Sunday, temperatures
will remain cool but should recover back into the 40s...very close
to March 1st normals. The aforementioned disturbance in the Gulf
of AK will track into Northwestern WA late Sunday night with the
potential for light snow reaching the Cascade Crest by early
Monday morning. Amounts through this period will be light with the
potential for a few tenths after midnight but before sunrise. /sb

Monday through Saturday: The next system drops across the Pacific
Northwest early in the week, with some snow threat and another
shot of cold air, before milder and relatively drier conditions
return.  Between Monday and Tuesday night a couple mid-level
shortwave dives across western Canada and the northwest United
States. Models have been consistently in disagreement over the
past few days over the evolution of the second wave, however this
morning the wetter ECMWF trended toward the other drier guidance.
One shortwave will be sliding south along the WA/OR coastline
early Monday, bringing some shower chances to the Cascades early.
A second shortwave slips by northeast WA/north ID and MT Monday
afternoon into Monday night. This will ramp up precipitation
chances across the eastern third of WA and north ID, especially
during the afternoon and evening. Overnight into Tuesday drier air
comes in on the a north-northwest flow, with a weakening surface
trough/deformation axis. There will be a lingering shower threat
across the central Panhandle and Camas Prairie, as well as about
the mtns of northeast WA and north ID, but by this time the threat
of significant precipitation will be ending.

As for precipitation-type, snow looks predominant. However during
the afternoon hours surface temperatures warming above freezing
will limit the potential for accumulation outside of the
mountains. Overall it still looks like about 1 to 2 inches in the
eastern mountains and less than an inch in the valleys, if
anything accumulates at all in the valleys that is.

Behind the precipitation threat comes increased winds and that
next push of cold air. In general, however, look for increasing
northerly winds between Monday afternoon and Tuesday. The speeds
abate through the Tuesday night. Tuesday afternoon temperatures
are expected to be below normal by 5 to 10 degrees, followed by
lows dropping some 10 to 15 degrees below normal Tuesday night in
an atmosphere more conducive to good rational cooling (i.e. dry,
with few clouds and lighter winds). This means lows in the singles
digits and teens Tuesday night/Wednesday morning.

Between Wednesday and Saturday the rebounded ridge is eventually
dampened again by another shortwave trough moving in from the
west. The primary wave stays north of the Canadian border, but
some weaker ripples do skim in on an the westerly flow. For the
most part the forecast is dry, but a few isolated showers cannot
be ruled out near the immediate Canadian border toward the end of
the work week. The rebounding ridge is also accompanied by some
milder air, so look for temperatures to moderate back toward
normal and, by Friday, slightly above normal again. /J. Cote`


&&

.AVIATION...
06Z TAFS: VFR conditions can be expected at all TAF sites through
Sunday. Thin high clouds will move in from the north overnight and
lower slightly and thicken some by Sunday afternoon.

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        18  42  26  41  21  33 /   0   0   0  20  20  10
Coeur d`Alene  17  44  24  40  18  33 /   0   0   0  30  30  10
Pullman        20  44  27  40  22  33 /   0   0   0  30  20  10
Lewiston       24  47  28  44  26  38 /   0   0   0  20  20  10
Colville       19  47  26  44  22  37 /   0   0  10  20  20  10
Sandpoint      16  41  23  38  17  31 /   0   0  10  60  60  10
Kellogg        16  41  24  37  17  29 /   0   0   0  60  60  20
Moses Lake     23  48  29  49  26  42 /   0   0  10  10   0   0
Wenatchee      26  49  29  49  25  42 /   0   0  10  10   0   0
Omak           23  51  27  49  23  43 /   0   0  10  10   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&






000
FXUS66 KOTX 010545
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
945 PM PST SAT FEB 28 2015

.SYNOPSIS...
Dry, seasonal conditions will found across the Inland Northwest
this weekend. A weather system will pass through Monday into early
Tuesday with the potential for light snow, especially for the
Idaho Panhandle, with breezy conditions. Much colder air moves in
behind this system, with temperatures well below average for the
middle of next week. A dry period, with moderating temperature
will follow for the end of next week.

&&

.DISCUSSION...
Tonight through Sunday night: A dry continental air mass will
reside over the region delivering mostly clear skies and seasonal
temperatures. The region remains under broad northwest flow aloft
with one disturbance well to the south and another tracking across
through the Gulf of Alaska. Consequently, shortwave ridging will
be the dominate weather feature through the remainder of the
weekend. Winds are currently at their peak and will continue to
wane this evening and overnight. Dew points are extremely dry
with many locations reporting teens to single digits. As winds
calm overnight, look for temperatures to rapidly cool with
readings Sunday morning into the teens to lower 20s. Without
sufficient mixing (i.e. winds) returning Sunday, temperatures
will remain cool but should recover back into the 40s...very close
to March 1st normals. The aforementioned disturbance in the Gulf
of AK will track into Northwestern WA late Sunday night with the
potential for light snow reaching the Cascade Crest by early
Monday morning. Amounts through this period will be light with the
potential for a few tenths after midnight but before sunrise. /sb

Monday through Saturday: The next system drops across the Pacific
Northwest early in the week, with some snow threat and another
shot of cold air, before milder and relatively drier conditions
return.  Between Monday and Tuesday night a couple mid-level
shortwave dives across western Canada and the northwest United
States. Models have been consistently in disagreement over the
past few days over the evolution of the second wave, however this
morning the wetter ECMWF trended toward the other drier guidance.
One shortwave will be sliding south along the WA/OR coastline
early Monday, bringing some shower chances to the Cascades early.
A second shortwave slips by northeast WA/north ID and MT Monday
afternoon into Monday night. This will ramp up precipitation
chances across the eastern third of WA and north ID, especially
during the afternoon and evening. Overnight into Tuesday drier air
comes in on the a north-northwest flow, with a weakening surface
trough/deformation axis. There will be a lingering shower threat
across the central Panhandle and Camas Prairie, as well as about
the mtns of northeast WA and north ID, but by this time the threat
of significant precipitation will be ending.

As for precipitation-type, snow looks predominant. However during
the afternoon hours surface temperatures warming above freezing
will limit the potential for accumulation outside of the
mountains. Overall it still looks like about 1 to 2 inches in the
eastern mountains and less than an inch in the valleys, if
anything accumulates at all in the valleys that is.

Behind the precipitation threat comes increased winds and that
next push of cold air. In general, however, look for increasing
northerly winds between Monday afternoon and Tuesday. The speeds
abate through the Tuesday night. Tuesday afternoon temperatures
are expected to be below normal by 5 to 10 degrees, followed by
lows dropping some 10 to 15 degrees below normal Tuesday night in
an atmosphere more conducive to good rational cooling (i.e. dry,
with few clouds and lighter winds). This means lows in the singles
digits and teens Tuesday night/Wednesday morning.

Between Wednesday and Saturday the rebounded ridge is eventually
dampened again by another shortwave trough moving in from the
west. The primary wave stays north of the Canadian border, but
some weaker ripples do skim in on an the westerly flow. For the
most part the forecast is dry, but a few isolated showers cannot
be ruled out near the immediate Canadian border toward the end of
the work week. The rebounding ridge is also accompanied by some
milder air, so look for temperatures to moderate back toward
normal and, by Friday, slightly above normal again. /J. Cote`


&&

.AVIATION...
06Z TAFS: VFR conditions can be expected at all TAF sites through
Sunday. Thin high clouds will move in from the north overnight and
lower slightly and thicken some by Sunday afternoon.

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        18  42  26  41  21  33 /   0   0   0  20  20  10
Coeur d`Alene  17  44  24  40  18  33 /   0   0   0  30  30  10
Pullman        20  44  27  40  22  33 /   0   0   0  30  20  10
Lewiston       24  47  28  44  26  38 /   0   0   0  20  20  10
Colville       19  47  26  44  22  37 /   0   0  10  20  20  10
Sandpoint      16  41  23  38  17  31 /   0   0  10  60  60  10
Kellogg        16  41  24  37  17  29 /   0   0   0  60  60  20
Moses Lake     23  48  29  49  26  42 /   0   0  10  10   0   0
Wenatchee      26  49  29  49  25  42 /   0   0  10  10   0   0
Omak           23  51  27  49  23  43 /   0   0  10  10   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&





000
FXUS66 KOTX 010545
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
945 PM PST SAT FEB 28 2015

.SYNOPSIS...
Dry, seasonal conditions will found across the Inland Northwest
this weekend. A weather system will pass through Monday into early
Tuesday with the potential for light snow, especially for the
Idaho Panhandle, with breezy conditions. Much colder air moves in
behind this system, with temperatures well below average for the
middle of next week. A dry period, with moderating temperature
will follow for the end of next week.

&&

.DISCUSSION...
Tonight through Sunday night: A dry continental air mass will
reside over the region delivering mostly clear skies and seasonal
temperatures. The region remains under broad northwest flow aloft
with one disturbance well to the south and another tracking across
through the Gulf of Alaska. Consequently, shortwave ridging will
be the dominate weather feature through the remainder of the
weekend. Winds are currently at their peak and will continue to
wane this evening and overnight. Dew points are extremely dry
with many locations reporting teens to single digits. As winds
calm overnight, look for temperatures to rapidly cool with
readings Sunday morning into the teens to lower 20s. Without
sufficient mixing (i.e. winds) returning Sunday, temperatures
will remain cool but should recover back into the 40s...very close
to March 1st normals. The aforementioned disturbance in the Gulf
of AK will track into Northwestern WA late Sunday night with the
potential for light snow reaching the Cascade Crest by early
Monday morning. Amounts through this period will be light with the
potential for a few tenths after midnight but before sunrise. /sb

Monday through Saturday: The next system drops across the Pacific
Northwest early in the week, with some snow threat and another
shot of cold air, before milder and relatively drier conditions
return.  Between Monday and Tuesday night a couple mid-level
shortwave dives across western Canada and the northwest United
States. Models have been consistently in disagreement over the
past few days over the evolution of the second wave, however this
morning the wetter ECMWF trended toward the other drier guidance.
One shortwave will be sliding south along the WA/OR coastline
early Monday, bringing some shower chances to the Cascades early.
A second shortwave slips by northeast WA/north ID and MT Monday
afternoon into Monday night. This will ramp up precipitation
chances across the eastern third of WA and north ID, especially
during the afternoon and evening. Overnight into Tuesday drier air
comes in on the a north-northwest flow, with a weakening surface
trough/deformation axis. There will be a lingering shower threat
across the central Panhandle and Camas Prairie, as well as about
the mtns of northeast WA and north ID, but by this time the threat
of significant precipitation will be ending.

As for precipitation-type, snow looks predominant. However during
the afternoon hours surface temperatures warming above freezing
will limit the potential for accumulation outside of the
mountains. Overall it still looks like about 1 to 2 inches in the
eastern mountains and less than an inch in the valleys, if
anything accumulates at all in the valleys that is.

Behind the precipitation threat comes increased winds and that
next push of cold air. In general, however, look for increasing
northerly winds between Monday afternoon and Tuesday. The speeds
abate through the Tuesday night. Tuesday afternoon temperatures
are expected to be below normal by 5 to 10 degrees, followed by
lows dropping some 10 to 15 degrees below normal Tuesday night in
an atmosphere more conducive to good rational cooling (i.e. dry,
with few clouds and lighter winds). This means lows in the singles
digits and teens Tuesday night/Wednesday morning.

Between Wednesday and Saturday the rebounded ridge is eventually
dampened again by another shortwave trough moving in from the
west. The primary wave stays north of the Canadian border, but
some weaker ripples do skim in on an the westerly flow. For the
most part the forecast is dry, but a few isolated showers cannot
be ruled out near the immediate Canadian border toward the end of
the work week. The rebounding ridge is also accompanied by some
milder air, so look for temperatures to moderate back toward
normal and, by Friday, slightly above normal again. /J. Cote`


&&

.AVIATION...
06Z TAFS: VFR conditions can be expected at all TAF sites through
Sunday. Thin high clouds will move in from the north overnight and
lower slightly and thicken some by Sunday afternoon.

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        18  42  26  41  21  33 /   0   0   0  20  20  10
Coeur d`Alene  17  44  24  40  18  33 /   0   0   0  30  30  10
Pullman        20  44  27  40  22  33 /   0   0   0  30  20  10
Lewiston       24  47  28  44  26  38 /   0   0   0  20  20  10
Colville       19  47  26  44  22  37 /   0   0  10  20  20  10
Sandpoint      16  41  23  38  17  31 /   0   0  10  60  60  10
Kellogg        16  41  24  37  17  29 /   0   0   0  60  60  20
Moses Lake     23  48  29  49  26  42 /   0   0  10  10   0   0
Wenatchee      26  49  29  49  25  42 /   0   0  10  10   0   0
Omak           23  51  27  49  23  43 /   0   0  10  10   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&






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