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000
FXUS65 KMSO 281115
AFDMSO

Area Forecast Discussion
National Weather Service Missoula MT
415 AM MST SAT FEB 28 2015

.DISCUSSION...Cold temperatures and wind chills are impacting the
region this morning. Temperatures overnight have been slow to
lower to their potential thanks to some overcast clouds and wind.
Nevertheless wind chills in much of Southwest Montana hover around
0 with single digits elsewhere. The upper low that was to bring
some light accumulating snow is a bit further south than
anticipated. Only a few light snow showers in Butte and Salmon
have occurred with not much expected the rest of the day.

Dry north/northwest flow will impact the region through Monday
morning. Temperatures will remain well below normal (10-20
degrees) with lows in the single digits and teens.

The next potential big impact comes Monday afternoon through
Tuesday morning as another shot of arctic air crosses the divide.
A stronger weather disturbance, supported with a northerly jet, is
associated with this system and will produce a band of snow in
western Montana with the best potential for significant
accumulations in along the mountains and valleys along the
continental divide. Lighter snow accumulations are expected in the
Flathead/Mission/Missoula valleys. Even an inch or two could be a
significant impact given the time of year and the dry road
surfaces. There is not a lot of confidence to put exact numbers on
snow amounts so stay tuned.

After this weather system, temperatures will gradually increase
to near normal by Wednesday and a potential for above normal
temperatures in the upper 40s or around 50 by late next week as
models are consistent showing more of a ridge development across
the west.

&&

.AVIATION...

A few morning showers may impact KBTM and KSMN early this morning
as a weak weather disturbance moves south of the region. East to
Northeast winds will be gusty at times especially at KGPI and
KMSO through the morning. Winds are expected to gradually decrease
throughout the afternoon.



&&

.MSO WATCHES/WARNINGS/ADVISORIES...
MT...WINTER WEATHER ADVISORY until 11 AM MST this morning
     Bitterroot/Sapphire Mountains...Butte/Blackfoot Region.

     WIND CHILL ADVISORY until 11 AM MST this morning Potomac/Seeley
     Lake Region...West Glacier Region.

ID...WINTER WEATHER ADVISORY until 11 AM MST this morning Eastern
     Lemhi County...Western Lemhi County.

&&

$$





000
FXUS65 KMSO 281115
AFDMSO

Area Forecast Discussion
National Weather Service Missoula MT
415 AM MST SAT FEB 28 2015

.DISCUSSION...Cold temperatures and wind chills are impacting the
region this morning. Temperatures overnight have been slow to
lower to their potential thanks to some overcast clouds and wind.
Nevertheless wind chills in much of Southwest Montana hover around
0 with single digits elsewhere. The upper low that was to bring
some light accumulating snow is a bit further south than
anticipated. Only a few light snow showers in Butte and Salmon
have occurred with not much expected the rest of the day.

Dry north/northwest flow will impact the region through Monday
morning. Temperatures will remain well below normal (10-20
degrees) with lows in the single digits and teens.

The next potential big impact comes Monday afternoon through
Tuesday morning as another shot of arctic air crosses the divide.
A stronger weather disturbance, supported with a northerly jet, is
associated with this system and will produce a band of snow in
western Montana with the best potential for significant
accumulations in along the mountains and valleys along the
continental divide. Lighter snow accumulations are expected in the
Flathead/Mission/Missoula valleys. Even an inch or two could be a
significant impact given the time of year and the dry road
surfaces. There is not a lot of confidence to put exact numbers on
snow amounts so stay tuned.

After this weather system, temperatures will gradually increase
to near normal by Wednesday and a potential for above normal
temperatures in the upper 40s or around 50 by late next week as
models are consistent showing more of a ridge development across
the west.

&&

.AVIATION...

A few morning showers may impact KBTM and KSMN early this morning
as a weak weather disturbance moves south of the region. East to
Northeast winds will be gusty at times especially at KGPI and
KMSO through the morning. Winds are expected to gradually decrease
throughout the afternoon.



&&

.MSO WATCHES/WARNINGS/ADVISORIES...
MT...WINTER WEATHER ADVISORY until 11 AM MST this morning
     Bitterroot/Sapphire Mountains...Butte/Blackfoot Region.

     WIND CHILL ADVISORY until 11 AM MST this morning Potomac/Seeley
     Lake Region...West Glacier Region.

ID...WINTER WEATHER ADVISORY until 11 AM MST this morning Eastern
     Lemhi County...Western Lemhi County.

&&

$$






000
FXUS65 KMSO 281115
AFDMSO

Area Forecast Discussion
National Weather Service Missoula MT
415 AM MST SAT FEB 28 2015

.DISCUSSION...Cold temperatures and wind chills are impacting the
region this morning. Temperatures overnight have been slow to
lower to their potential thanks to some overcast clouds and wind.
Nevertheless wind chills in much of Southwest Montana hover around
0 with single digits elsewhere. The upper low that was to bring
some light accumulating snow is a bit further south than
anticipated. Only a few light snow showers in Butte and Salmon
have occurred with not much expected the rest of the day.

Dry north/northwest flow will impact the region through Monday
morning. Temperatures will remain well below normal (10-20
degrees) with lows in the single digits and teens.

The next potential big impact comes Monday afternoon through
Tuesday morning as another shot of arctic air crosses the divide.
A stronger weather disturbance, supported with a northerly jet, is
associated with this system and will produce a band of snow in
western Montana with the best potential for significant
accumulations in along the mountains and valleys along the
continental divide. Lighter snow accumulations are expected in the
Flathead/Mission/Missoula valleys. Even an inch or two could be a
significant impact given the time of year and the dry road
surfaces. There is not a lot of confidence to put exact numbers on
snow amounts so stay tuned.

After this weather system, temperatures will gradually increase
to near normal by Wednesday and a potential for above normal
temperatures in the upper 40s or around 50 by late next week as
models are consistent showing more of a ridge development across
the west.

&&

.AVIATION...

A few morning showers may impact KBTM and KSMN early this morning
as a weak weather disturbance moves south of the region. East to
Northeast winds will be gusty at times especially at KGPI and
KMSO through the morning. Winds are expected to gradually decrease
throughout the afternoon.



&&

.MSO WATCHES/WARNINGS/ADVISORIES...
MT...WINTER WEATHER ADVISORY until 11 AM MST this morning
     Bitterroot/Sapphire Mountains...Butte/Blackfoot Region.

     WIND CHILL ADVISORY until 11 AM MST this morning Potomac/Seeley
     Lake Region...West Glacier Region.

ID...WINTER WEATHER ADVISORY until 11 AM MST this morning Eastern
     Lemhi County...Western Lemhi County.

&&

$$






000
FXUS65 KMSO 281115
AFDMSO

Area Forecast Discussion
National Weather Service Missoula MT
415 AM MST SAT FEB 28 2015

.DISCUSSION...Cold temperatures and wind chills are impacting the
region this morning. Temperatures overnight have been slow to
lower to their potential thanks to some overcast clouds and wind.
Nevertheless wind chills in much of Southwest Montana hover around
0 with single digits elsewhere. The upper low that was to bring
some light accumulating snow is a bit further south than
anticipated. Only a few light snow showers in Butte and Salmon
have occurred with not much expected the rest of the day.

Dry north/northwest flow will impact the region through Monday
morning. Temperatures will remain well below normal (10-20
degrees) with lows in the single digits and teens.

The next potential big impact comes Monday afternoon through
Tuesday morning as another shot of arctic air crosses the divide.
A stronger weather disturbance, supported with a northerly jet, is
associated with this system and will produce a band of snow in
western Montana with the best potential for significant
accumulations in along the mountains and valleys along the
continental divide. Lighter snow accumulations are expected in the
Flathead/Mission/Missoula valleys. Even an inch or two could be a
significant impact given the time of year and the dry road
surfaces. There is not a lot of confidence to put exact numbers on
snow amounts so stay tuned.

After this weather system, temperatures will gradually increase
to near normal by Wednesday and a potential for above normal
temperatures in the upper 40s or around 50 by late next week as
models are consistent showing more of a ridge development across
the west.

&&

.AVIATION...

A few morning showers may impact KBTM and KSMN early this morning
as a weak weather disturbance moves south of the region. East to
Northeast winds will be gusty at times especially at KGPI and
KMSO through the morning. Winds are expected to gradually decrease
throughout the afternoon.



&&

.MSO WATCHES/WARNINGS/ADVISORIES...
MT...WINTER WEATHER ADVISORY until 11 AM MST this morning
     Bitterroot/Sapphire Mountains...Butte/Blackfoot Region.

     WIND CHILL ADVISORY until 11 AM MST this morning Potomac/Seeley
     Lake Region...West Glacier Region.

ID...WINTER WEATHER ADVISORY until 11 AM MST this morning Eastern
     Lemhi County...Western Lemhi County.

&&

$$





000
FXUS65 KMSO 272133
AFDMSO

Area Forecast Discussion
National Weather Service Missoula MT
233 PM MST FRI FEB 27 2015

...MORE ARCTIC SURGES....

.DISCUSSION...An arctic air mass is on its way across the northern
Rockies setting up a cold and blustery weekend and beginning to
March. Tonight, light snow will impact Southwest Montana,
including Butte, Anaconda, and areas south with around an inch of
snow. Expect difficult driving conditions over Homestake Pass and
Divide Pass south of Butte tonight with snow accumulating on the
roads, and blowing snow causing low visibility. These conditions
will extend south through Lemhi county in Idaho affecting Lost
Trail Pass and Gilmore Summit too.

Wind chills will also be big concern east of Kalispell and
Missoula and along the Continental Divide, where many locations
will see -10 to -20 degree wind chills. The rest of western
Montana will have low temperatures in the low teens and single
digits, and central Idaho will wake up to temperatures in the
teens and low 20s.

More cold arrives Sunday morning, where areas east of Kalispell
and Missoula have low temperatures in below zero, with the rest of
western Montana in the single digits and central Idaho waking up
to temperatures in the low teens.

Another surge of Arctic air is expected Monday into Tuesday. The
difference, compared to current cold air pushes, is that this one
looks to have the most cold intensity in terms of temperature and
wind chill. Also, there appears to be sufficient energy and
moisture with the arctic weather system to produce a period of
light snow from Orofino to the Camas Prairie and eastward across
western Montana Monday and Monday night. This could translate into
very slick travel conditions, especially considering falling
temperatures will freeze slushy or wet road conditions.

Temperatures should bottom out Monday night into Wednesday morning
20 to 30 degrees below normal. Below zero wind chills and strong
northeast winds should then be followed by subzero temperatures in
western Montana and zero to 10 above in north central Idaho.

A quick warm-up Thursday into next weekend is beginning to look
more likely. Although there is high confidence since all models
show some form of this warm-up, there is some disagreement as to
whether there could be another round of precipitation on Friday.
The take- away being that the cold will not hold on for more than
a few days.

&&

.AVIATION...

Afternoon showers over the mountains will continue into this
evening causing mountain obscurations. An arctic air mass is
currently surging over the Continental Divide and will cause some
light snow along the Divide tonight affecting KBTM with up to an
inch of snow by the morning. Other area terminals will mainly
experience strong east winds and very cold temperatures.


&&

.MSO WATCHES/WARNINGS/ADVISORIES...
MT...WINTER WEATHER ADVISORY from 5 PM this afternoon to 11 AM MST
     Saturday Bitterroot/Sapphire Mountains...Butte/Blackfoot
     Region.

     WIND CHILL ADVISORY from 8 PM this evening to 11 AM MST Saturday
     Potomac/Seeley Lake Region...West Glacier Region.

ID...WINTER WEATHER ADVISORY from 5 PM this afternoon to 11 AM MST
     Saturday Eastern Lemhi County...Western Lemhi County.

&&

$$





000
FXUS65 KMSO 272133
AFDMSO

Area Forecast Discussion
National Weather Service Missoula MT
233 PM MST FRI FEB 27 2015

...MORE ARCTIC SURGES....

.DISCUSSION...An arctic air mass is on its way across the northern
Rockies setting up a cold and blustery weekend and beginning to
March. Tonight, light snow will impact Southwest Montana,
including Butte, Anaconda, and areas south with around an inch of
snow. Expect difficult driving conditions over Homestake Pass and
Divide Pass south of Butte tonight with snow accumulating on the
roads, and blowing snow causing low visibility. These conditions
will extend south through Lemhi county in Idaho affecting Lost
Trail Pass and Gilmore Summit too.

Wind chills will also be big concern east of Kalispell and
Missoula and along the Continental Divide, where many locations
will see -10 to -20 degree wind chills. The rest of western
Montana will have low temperatures in the low teens and single
digits, and central Idaho will wake up to temperatures in the
teens and low 20s.

More cold arrives Sunday morning, where areas east of Kalispell
and Missoula have low temperatures in below zero, with the rest of
western Montana in the single digits and central Idaho waking up
to temperatures in the low teens.

Another surge of Arctic air is expected Monday into Tuesday. The
difference, compared to current cold air pushes, is that this one
looks to have the most cold intensity in terms of temperature and
wind chill. Also, there appears to be sufficient energy and
moisture with the arctic weather system to produce a period of
light snow from Orofino to the Camas Prairie and eastward across
western Montana Monday and Monday night. This could translate into
very slick travel conditions, especially considering falling
temperatures will freeze slushy or wet road conditions.

Temperatures should bottom out Monday night into Wednesday morning
20 to 30 degrees below normal. Below zero wind chills and strong
northeast winds should then be followed by subzero temperatures in
western Montana and zero to 10 above in north central Idaho.

A quick warm-up Thursday into next weekend is beginning to look
more likely. Although there is high confidence since all models
show some form of this warm-up, there is some disagreement as to
whether there could be another round of precipitation on Friday.
The take- away being that the cold will not hold on for more than
a few days.

&&

.AVIATION...

Afternoon showers over the mountains will continue into this
evening causing mountain obscurations. An arctic air mass is
currently surging over the Continental Divide and will cause some
light snow along the Divide tonight affecting KBTM with up to an
inch of snow by the morning. Other area terminals will mainly
experience strong east winds and very cold temperatures.


&&

.MSO WATCHES/WARNINGS/ADVISORIES...
MT...WINTER WEATHER ADVISORY from 5 PM this afternoon to 11 AM MST
     Saturday Bitterroot/Sapphire Mountains...Butte/Blackfoot
     Region.

     WIND CHILL ADVISORY from 8 PM this evening to 11 AM MST Saturday
     Potomac/Seeley Lake Region...West Glacier Region.

ID...WINTER WEATHER ADVISORY from 5 PM this afternoon to 11 AM MST
     Saturday Eastern Lemhi County...Western Lemhi County.

&&

$$






000
FXUS65 KMSO 272133
AFDMSO

Area Forecast Discussion
National Weather Service Missoula MT
233 PM MST FRI FEB 27 2015

...MORE ARCTIC SURGES....

.DISCUSSION...An arctic air mass is on its way across the northern
Rockies setting up a cold and blustery weekend and beginning to
March. Tonight, light snow will impact Southwest Montana,
including Butte, Anaconda, and areas south with around an inch of
snow. Expect difficult driving conditions over Homestake Pass and
Divide Pass south of Butte tonight with snow accumulating on the
roads, and blowing snow causing low visibility. These conditions
will extend south through Lemhi county in Idaho affecting Lost
Trail Pass and Gilmore Summit too.

Wind chills will also be big concern east of Kalispell and
Missoula and along the Continental Divide, where many locations
will see -10 to -20 degree wind chills. The rest of western
Montana will have low temperatures in the low teens and single
digits, and central Idaho will wake up to temperatures in the
teens and low 20s.

More cold arrives Sunday morning, where areas east of Kalispell
and Missoula have low temperatures in below zero, with the rest of
western Montana in the single digits and central Idaho waking up
to temperatures in the low teens.

Another surge of Arctic air is expected Monday into Tuesday. The
difference, compared to current cold air pushes, is that this one
looks to have the most cold intensity in terms of temperature and
wind chill. Also, there appears to be sufficient energy and
moisture with the arctic weather system to produce a period of
light snow from Orofino to the Camas Prairie and eastward across
western Montana Monday and Monday night. This could translate into
very slick travel conditions, especially considering falling
temperatures will freeze slushy or wet road conditions.

Temperatures should bottom out Monday night into Wednesday morning
20 to 30 degrees below normal. Below zero wind chills and strong
northeast winds should then be followed by subzero temperatures in
western Montana and zero to 10 above in north central Idaho.

A quick warm-up Thursday into next weekend is beginning to look
more likely. Although there is high confidence since all models
show some form of this warm-up, there is some disagreement as to
whether there could be another round of precipitation on Friday.
The take- away being that the cold will not hold on for more than
a few days.

&&

.AVIATION...

Afternoon showers over the mountains will continue into this
evening causing mountain obscurations. An arctic air mass is
currently surging over the Continental Divide and will cause some
light snow along the Divide tonight affecting KBTM with up to an
inch of snow by the morning. Other area terminals will mainly
experience strong east winds and very cold temperatures.


&&

.MSO WATCHES/WARNINGS/ADVISORIES...
MT...WINTER WEATHER ADVISORY from 5 PM this afternoon to 11 AM MST
     Saturday Bitterroot/Sapphire Mountains...Butte/Blackfoot
     Region.

     WIND CHILL ADVISORY from 8 PM this evening to 11 AM MST Saturday
     Potomac/Seeley Lake Region...West Glacier Region.

ID...WINTER WEATHER ADVISORY from 5 PM this afternoon to 11 AM MST
     Saturday Eastern Lemhi County...Western Lemhi County.

&&

$$





000
FXUS65 KMSO 272133
AFDMSO

Area Forecast Discussion
National Weather Service Missoula MT
233 PM MST FRI FEB 27 2015

...MORE ARCTIC SURGES....

.DISCUSSION...An arctic air mass is on its way across the northern
Rockies setting up a cold and blustery weekend and beginning to
March. Tonight, light snow will impact Southwest Montana,
including Butte, Anaconda, and areas south with around an inch of
snow. Expect difficult driving conditions over Homestake Pass and
Divide Pass south of Butte tonight with snow accumulating on the
roads, and blowing snow causing low visibility. These conditions
will extend south through Lemhi county in Idaho affecting Lost
Trail Pass and Gilmore Summit too.

Wind chills will also be big concern east of Kalispell and
Missoula and along the Continental Divide, where many locations
will see -10 to -20 degree wind chills. The rest of western
Montana will have low temperatures in the low teens and single
digits, and central Idaho will wake up to temperatures in the
teens and low 20s.

More cold arrives Sunday morning, where areas east of Kalispell
and Missoula have low temperatures in below zero, with the rest of
western Montana in the single digits and central Idaho waking up
to temperatures in the low teens.

Another surge of Arctic air is expected Monday into Tuesday. The
difference, compared to current cold air pushes, is that this one
looks to have the most cold intensity in terms of temperature and
wind chill. Also, there appears to be sufficient energy and
moisture with the arctic weather system to produce a period of
light snow from Orofino to the Camas Prairie and eastward across
western Montana Monday and Monday night. This could translate into
very slick travel conditions, especially considering falling
temperatures will freeze slushy or wet road conditions.

Temperatures should bottom out Monday night into Wednesday morning
20 to 30 degrees below normal. Below zero wind chills and strong
northeast winds should then be followed by subzero temperatures in
western Montana and zero to 10 above in north central Idaho.

A quick warm-up Thursday into next weekend is beginning to look
more likely. Although there is high confidence since all models
show some form of this warm-up, there is some disagreement as to
whether there could be another round of precipitation on Friday.
The take- away being that the cold will not hold on for more than
a few days.

&&

.AVIATION...

Afternoon showers over the mountains will continue into this
evening causing mountain obscurations. An arctic air mass is
currently surging over the Continental Divide and will cause some
light snow along the Divide tonight affecting KBTM with up to an
inch of snow by the morning. Other area terminals will mainly
experience strong east winds and very cold temperatures.


&&

.MSO WATCHES/WARNINGS/ADVISORIES...
MT...WINTER WEATHER ADVISORY from 5 PM this afternoon to 11 AM MST
     Saturday Bitterroot/Sapphire Mountains...Butte/Blackfoot
     Region.

     WIND CHILL ADVISORY from 8 PM this evening to 11 AM MST Saturday
     Potomac/Seeley Lake Region...West Glacier Region.

ID...WINTER WEATHER ADVISORY from 5 PM this afternoon to 11 AM MST
     Saturday Eastern Lemhi County...Western Lemhi County.

&&

$$






000
FXUS65 KMSO 271122
AFDMSO

Area Forecast Discussion
National Weather Service Missoula MT
421 AM MST FRI FEB 27 2015

...VERY COLD WIND CHILL PRESENT AT TIMES THROUGH NEXT WEEK...

.DISCUSSION...

A broad Pacific storm system embedded within northerly flow aloft
will move west of the Northern Rockies today through Saturday,
drawing snow shower activity across the region. The orientation
of this system is such that relatively cold air east of the
Continental Divide will continue to be drawn westward over time. A
drop in temperatures and very cold wind chill will be most evident
along the Divide and near terrain gap features in western Montana,
such as Hellgate Canyon east of Missoula and Badrock Canyon east
of Columbia Falls. Snow showers may create hazardous driving
conditions for a time across the Camas Prairie of Idaho and over
Lost Trail Pass through Saturday.

After a cold start Sunday morning, the focus will turn to a
winter storm expected to impact the region Monday afternoon into
Tuesday. Light snow across northwest Montana on Monday afternoon
will quickly spread southward Monday night, accompanied by a surge
of arctic air. A combination of snow, gusty northeast winds, and a
sudden decrease in temperatures will likely present several
significant impacts:

* Those traveling across western Montana and north central Idaho
  will likely see road conditions quickly deteriorate with slick
  conditions and potentially reduced visibility in areas of
  blowing snow. Several inches of snow accumulation will be
  possible.

* Sensitive livestock such as newborns and those with outdoor
  interests will also be impacted by both cold temperatures and
  potentially subzero wind chills. Temperatures running 20-25
  degrees below normal will continue into Wednesday before a
  gradual warm up begins.

Most weather models suggest that mainly dry conditions will be
present across the Northern Rockies from Wednesday evening through
the end of next week. Temperatures during this time appear fairly
typical for this time of year.

&&

.AVIATION...

Low and mid level cloudiness will be evolving over the Northern
Rockies during the next 24 hours. Some snow showers, mainly across
north central Idaho and along the Continental Divide, may temporarily
limit visibility and ceilings near area terminals. Otherwise,
relatively cold air from east of the Divide will be rushing
westward, creating some wind gusts to 25 knots to KGPI and KMSO by
28/0000Z.

&&

.MSO WATCHES/WARNINGS/ADVISORIES...
MT...None.
ID...None.
&&

$$





000
FXUS65 KMSO 271122
AFDMSO

Area Forecast Discussion
National Weather Service Missoula MT
421 AM MST FRI FEB 27 2015

...VERY COLD WIND CHILL PRESENT AT TIMES THROUGH NEXT WEEK...

.DISCUSSION...

A broad Pacific storm system embedded within northerly flow aloft
will move west of the Northern Rockies today through Saturday,
drawing snow shower activity across the region. The orientation
of this system is such that relatively cold air east of the
Continental Divide will continue to be drawn westward over time. A
drop in temperatures and very cold wind chill will be most evident
along the Divide and near terrain gap features in western Montana,
such as Hellgate Canyon east of Missoula and Badrock Canyon east
of Columbia Falls. Snow showers may create hazardous driving
conditions for a time across the Camas Prairie of Idaho and over
Lost Trail Pass through Saturday.

After a cold start Sunday morning, the focus will turn to a
winter storm expected to impact the region Monday afternoon into
Tuesday. Light snow across northwest Montana on Monday afternoon
will quickly spread southward Monday night, accompanied by a surge
of arctic air. A combination of snow, gusty northeast winds, and a
sudden decrease in temperatures will likely present several
significant impacts:

* Those traveling across western Montana and north central Idaho
  will likely see road conditions quickly deteriorate with slick
  conditions and potentially reduced visibility in areas of
  blowing snow. Several inches of snow accumulation will be
  possible.

* Sensitive livestock such as newborns and those with outdoor
  interests will also be impacted by both cold temperatures and
  potentially subzero wind chills. Temperatures running 20-25
  degrees below normal will continue into Wednesday before a
  gradual warm up begins.

Most weather models suggest that mainly dry conditions will be
present across the Northern Rockies from Wednesday evening through
the end of next week. Temperatures during this time appear fairly
typical for this time of year.

&&

.AVIATION...

Low and mid level cloudiness will be evolving over the Northern
Rockies during the next 24 hours. Some snow showers, mainly across
north central Idaho and along the Continental Divide, may temporarily
limit visibility and ceilings near area terminals. Otherwise,
relatively cold air from east of the Divide will be rushing
westward, creating some wind gusts to 25 knots to KGPI and KMSO by
28/0000Z.

&&

.MSO WATCHES/WARNINGS/ADVISORIES...
MT...None.
ID...None.
&&

$$






000
FXUS65 KMSO 262113
AFDMSO

Area Forecast Discussion
National Weather Service Missoula MT
212 PM MST THU FEB 26 2015

...VERY COLD WEATHER THIS WEEKEND AND NEXT WEEK...

.DISCUSSION...

This weekend an arctic front will impact the Northern Rockies
causing very cold overnight temperatures. Several nights this
weekend and early next week will have wind chills in the teens
below zero from Butte to Georgetown Lake and north through
Garrison Junction and farther north over Marias Pass and into
Columbia Falls. This could be a very difficult time for newborn
livestock near the Continental Divide in Montana.

Tomorrow the first arctic arrives and will mainly bring wind and
cold with light snow. Most areas are expected to get less than an
inch of snow Friday and Saturday with this system, though some
locally higher amounts are possible in the mountains.

Monday and Tuesday another arctic front pushes west across the
divide. This time it has more moisture to work with, which is a
recent change in the models. PoPs were raised to account for this,
and it raises the possibility of significant travel impacts with
snow accumulating on roadways.

&&

.AVIATION...

Clouds and a few snow showers will persist this evening along the
Continental Divide near KBTM and KSMN as well as north central
Idaho which could limit visibility, lower ceilings, and obscure
terrain at times. Northerly and easterly surface winds are
expected to increase with another arctic air push from east of
the Divide by midday Friday with gusty winds affecting western MT
terminals especially at KMSO. /ss

&&

.MSO WATCHES/WARNINGS/ADVISORIES...
MT...None.
ID...None.
&&

$$






000
FXUS65 KMSO 262113
AFDMSO

Area Forecast Discussion
National Weather Service Missoula MT
212 PM MST THU FEB 26 2015

...VERY COLD WEATHER THIS WEEKEND AND NEXT WEEK...

.DISCUSSION...

This weekend an arctic front will impact the Northern Rockies
causing very cold overnight temperatures. Several nights this
weekend and early next week will have wind chills in the teens
below zero from Butte to Georgetown Lake and north through
Garrison Junction and farther north over Marias Pass and into
Columbia Falls. This could be a very difficult time for newborn
livestock near the Continental Divide in Montana.

Tomorrow the first arctic arrives and will mainly bring wind and
cold with light snow. Most areas are expected to get less than an
inch of snow Friday and Saturday with this system, though some
locally higher amounts are possible in the mountains.

Monday and Tuesday another arctic front pushes west across the
divide. This time it has more moisture to work with, which is a
recent change in the models. PoPs were raised to account for this,
and it raises the possibility of significant travel impacts with
snow accumulating on roadways.

&&

.AVIATION...

Clouds and a few snow showers will persist this evening along the
Continental Divide near KBTM and KSMN as well as north central
Idaho which could limit visibility, lower ceilings, and obscure
terrain at times. Northerly and easterly surface winds are
expected to increase with another arctic air push from east of
the Divide by midday Friday with gusty winds affecting western MT
terminals especially at KMSO. /ss

&&

.MSO WATCHES/WARNINGS/ADVISORIES...
MT...None.
ID...None.
&&

$$





000
FXUS65 KMSO 261116
AFDMSO

Area Forecast Discussion
National Weather Service Missoula MT
416 AM MST THU FEB 26 2015

...Very Cold Temperatures/Wind Chills This Weekend
Into Early Next Week...

.DISCUSSION...

Light snow showers will exist throughout this morning along the
Continental Divide, primarily impacting the Butte/Blackfoot
Region and nearby mountain passes. Snow accumulation will cause
hazardous driving conditions at times with snow and ice covered
roadways. Also, snow showers will impact the Camas Prairie and
vicinity throughout today. Snow accumulations in Idaho will be
primarily on grassy surfaces, while most snowfall is anticipated
to melt on roadways. That said, there is still the possibility
that roadway temperatures could cool enough to support some ice
formation from melted snow and thus result in hazardous driving
conditions. The area of most concern in Idaho includes Grangeville
and Whitebird Grade. Finally, relatively cold easterly winds will
be present across western Montana throughout today, cooling
temperatures from those experienced the past few days.

A broad, yet weak Pacific storm system along the US west coast is
expected to bring a minor influence of light snow to the Northern
Rockies late tonight through Saturday. Impacts from snow will vary
greatly from location to location, however expectations of snow
hazards are likely to be confined to such passes as Whitebird
Grade, Lolo Pass, and Lost Trail Pass. Otherwise, the upper level
pattern will reinforce cooling temperatures across the Northern
Rockies from east to west through the remainder of the weekend.

Very cold temperatures are expected Sunday morning as a strong
surface high pressure system settles over the region. Higher
valleys near the Divide such as Georgetown Lake and Butte will
likely see readings of -10F to -20F on Sunday morning, while
single digits and teens are observed for the remaining valleys of
western MT and central ID.

Clouds will be on the increase Monday ahead of the next storm
system diving down from the north. This storm system will push yet
another arctic air mass through the region Monday night, leading
to another period of very cold temperatures and potentially
dangerous wind chills through Wednesday. A dusting to several
inches of snow will also be possible later Monday into Tuesday
leading to slick roadways. The main point to take away: the
aforementioned conditions could present a significant impact to
sensitive livestock, travelers, and those with outdoor plans, so
please keep up with the latest forecast updates.

&&

.AVIATION...

Occasional light snow showers along the Continental Divide and
across north central Idaho will limit visibility, lower ceilings,
and obscure terrain throughout much of the next 24 hours. KBTM is
the most likely terminal to be impacted by the snow, with the
snow threat ending after 26/1800Z. KGPI and KMSO will experience
easterly winds, gusting to around 20 knots at times through
27/0000Z.

&&

.MSO WATCHES/WARNINGS/ADVISORIES...
MT...WINTER WEATHER ADVISORY until 7 AM MST this morning
     Butte/Blackfoot Region...Potomac/Seeley Lake Region.

ID...None.
&&

$$





000
FXUS65 KMSO 261116
AFDMSO

Area Forecast Discussion
National Weather Service Missoula MT
416 AM MST THU FEB 26 2015

...Very Cold Temperatures/Wind Chills This Weekend
Into Early Next Week...

.DISCUSSION...

Light snow showers will exist throughout this morning along the
Continental Divide, primarily impacting the Butte/Blackfoot
Region and nearby mountain passes. Snow accumulation will cause
hazardous driving conditions at times with snow and ice covered
roadways. Also, snow showers will impact the Camas Prairie and
vicinity throughout today. Snow accumulations in Idaho will be
primarily on grassy surfaces, while most snowfall is anticipated
to melt on roadways. That said, there is still the possibility
that roadway temperatures could cool enough to support some ice
formation from melted snow and thus result in hazardous driving
conditions. The area of most concern in Idaho includes Grangeville
and Whitebird Grade. Finally, relatively cold easterly winds will
be present across western Montana throughout today, cooling
temperatures from those experienced the past few days.

A broad, yet weak Pacific storm system along the US west coast is
expected to bring a minor influence of light snow to the Northern
Rockies late tonight through Saturday. Impacts from snow will vary
greatly from location to location, however expectations of snow
hazards are likely to be confined to such passes as Whitebird
Grade, Lolo Pass, and Lost Trail Pass. Otherwise, the upper level
pattern will reinforce cooling temperatures across the Northern
Rockies from east to west through the remainder of the weekend.

Very cold temperatures are expected Sunday morning as a strong
surface high pressure system settles over the region. Higher
valleys near the Divide such as Georgetown Lake and Butte will
likely see readings of -10F to -20F on Sunday morning, while
single digits and teens are observed for the remaining valleys of
western MT and central ID.

Clouds will be on the increase Monday ahead of the next storm
system diving down from the north. This storm system will push yet
another arctic air mass through the region Monday night, leading
to another period of very cold temperatures and potentially
dangerous wind chills through Wednesday. A dusting to several
inches of snow will also be possible later Monday into Tuesday
leading to slick roadways. The main point to take away: the
aforementioned conditions could present a significant impact to
sensitive livestock, travelers, and those with outdoor plans, so
please keep up with the latest forecast updates.

&&

.AVIATION...

Occasional light snow showers along the Continental Divide and
across north central Idaho will limit visibility, lower ceilings,
and obscure terrain throughout much of the next 24 hours. KBTM is
the most likely terminal to be impacted by the snow, with the
snow threat ending after 26/1800Z. KGPI and KMSO will experience
easterly winds, gusting to around 20 knots at times through
27/0000Z.

&&

.MSO WATCHES/WARNINGS/ADVISORIES...
MT...WINTER WEATHER ADVISORY until 7 AM MST this morning
     Butte/Blackfoot Region...Potomac/Seeley Lake Region.

ID...None.
&&

$$






000
FXUS65 KMSO 261116
AFDMSO

Area Forecast Discussion
National Weather Service Missoula MT
416 AM MST THU FEB 26 2015

...Very Cold Temperatures/Wind Chills This Weekend
Into Early Next Week...

.DISCUSSION...

Light snow showers will exist throughout this morning along the
Continental Divide, primarily impacting the Butte/Blackfoot
Region and nearby mountain passes. Snow accumulation will cause
hazardous driving conditions at times with snow and ice covered
roadways. Also, snow showers will impact the Camas Prairie and
vicinity throughout today. Snow accumulations in Idaho will be
primarily on grassy surfaces, while most snowfall is anticipated
to melt on roadways. That said, there is still the possibility
that roadway temperatures could cool enough to support some ice
formation from melted snow and thus result in hazardous driving
conditions. The area of most concern in Idaho includes Grangeville
and Whitebird Grade. Finally, relatively cold easterly winds will
be present across western Montana throughout today, cooling
temperatures from those experienced the past few days.

A broad, yet weak Pacific storm system along the US west coast is
expected to bring a minor influence of light snow to the Northern
Rockies late tonight through Saturday. Impacts from snow will vary
greatly from location to location, however expectations of snow
hazards are likely to be confined to such passes as Whitebird
Grade, Lolo Pass, and Lost Trail Pass. Otherwise, the upper level
pattern will reinforce cooling temperatures across the Northern
Rockies from east to west through the remainder of the weekend.

Very cold temperatures are expected Sunday morning as a strong
surface high pressure system settles over the region. Higher
valleys near the Divide such as Georgetown Lake and Butte will
likely see readings of -10F to -20F on Sunday morning, while
single digits and teens are observed for the remaining valleys of
western MT and central ID.

Clouds will be on the increase Monday ahead of the next storm
system diving down from the north. This storm system will push yet
another arctic air mass through the region Monday night, leading
to another period of very cold temperatures and potentially
dangerous wind chills through Wednesday. A dusting to several
inches of snow will also be possible later Monday into Tuesday
leading to slick roadways. The main point to take away: the
aforementioned conditions could present a significant impact to
sensitive livestock, travelers, and those with outdoor plans, so
please keep up with the latest forecast updates.

&&

.AVIATION...

Occasional light snow showers along the Continental Divide and
across north central Idaho will limit visibility, lower ceilings,
and obscure terrain throughout much of the next 24 hours. KBTM is
the most likely terminal to be impacted by the snow, with the
snow threat ending after 26/1800Z. KGPI and KMSO will experience
easterly winds, gusting to around 20 knots at times through
27/0000Z.

&&

.MSO WATCHES/WARNINGS/ADVISORIES...
MT...WINTER WEATHER ADVISORY until 7 AM MST this morning
     Butte/Blackfoot Region...Potomac/Seeley Lake Region.

ID...None.
&&

$$






000
FXUS65 KMSO 261116
AFDMSO

Area Forecast Discussion
National Weather Service Missoula MT
416 AM MST THU FEB 26 2015

...Very Cold Temperatures/Wind Chills This Weekend
Into Early Next Week...

.DISCUSSION...

Light snow showers will exist throughout this morning along the
Continental Divide, primarily impacting the Butte/Blackfoot
Region and nearby mountain passes. Snow accumulation will cause
hazardous driving conditions at times with snow and ice covered
roadways. Also, snow showers will impact the Camas Prairie and
vicinity throughout today. Snow accumulations in Idaho will be
primarily on grassy surfaces, while most snowfall is anticipated
to melt on roadways. That said, there is still the possibility
that roadway temperatures could cool enough to support some ice
formation from melted snow and thus result in hazardous driving
conditions. The area of most concern in Idaho includes Grangeville
and Whitebird Grade. Finally, relatively cold easterly winds will
be present across western Montana throughout today, cooling
temperatures from those experienced the past few days.

A broad, yet weak Pacific storm system along the US west coast is
expected to bring a minor influence of light snow to the Northern
Rockies late tonight through Saturday. Impacts from snow will vary
greatly from location to location, however expectations of snow
hazards are likely to be confined to such passes as Whitebird
Grade, Lolo Pass, and Lost Trail Pass. Otherwise, the upper level
pattern will reinforce cooling temperatures across the Northern
Rockies from east to west through the remainder of the weekend.

Very cold temperatures are expected Sunday morning as a strong
surface high pressure system settles over the region. Higher
valleys near the Divide such as Georgetown Lake and Butte will
likely see readings of -10F to -20F on Sunday morning, while
single digits and teens are observed for the remaining valleys of
western MT and central ID.

Clouds will be on the increase Monday ahead of the next storm
system diving down from the north. This storm system will push yet
another arctic air mass through the region Monday night, leading
to another period of very cold temperatures and potentially
dangerous wind chills through Wednesday. A dusting to several
inches of snow will also be possible later Monday into Tuesday
leading to slick roadways. The main point to take away: the
aforementioned conditions could present a significant impact to
sensitive livestock, travelers, and those with outdoor plans, so
please keep up with the latest forecast updates.

&&

.AVIATION...

Occasional light snow showers along the Continental Divide and
across north central Idaho will limit visibility, lower ceilings,
and obscure terrain throughout much of the next 24 hours. KBTM is
the most likely terminal to be impacted by the snow, with the
snow threat ending after 26/1800Z. KGPI and KMSO will experience
easterly winds, gusting to around 20 knots at times through
27/0000Z.

&&

.MSO WATCHES/WARNINGS/ADVISORIES...
MT...WINTER WEATHER ADVISORY until 7 AM MST this morning
     Butte/Blackfoot Region...Potomac/Seeley Lake Region.

ID...None.
&&

$$





000
FXUS65 KMSO 252136
AFDMSO

Area Forecast Discussion
National Weather Service Missoula MT
236 PM MST WED FEB 25 2015

...Well below normal temperatures expected this weekend into
early next week...

.DISCUSSION...

Northwesterly upper level flow will persist over the Northern
Rockies tonight through Friday. A weak arctic air mass will
continue to be ushered into the region causing a slightly cooling
trend from today to tomorrow. This arctic front will keep a few
showers lingering along the continental divide. Also a
disturbance will slide out of central Washington later tonight
into Friday morning causing an increase in shower activity of
Clearwater and Idaho counties. The Grangeville and Riggins area
could experience some light snow accumulations by Friday morning.

Another arctic air mass will move into western Montana Saturday.
The biggest impacts include: wind chill values in the single
digits below and above zero most places but teens below zero
towards the Continental Divide, very light snow causing possible
slick roads especially at mountain passes and vegetation that has
already budded from the recent warm spell. With high pressure
centered over southwest Montana Sunday morning, low temperatures
will generally be 15 to 20 degrees below normal.

The next arctic air mass will move into the region by Monday night
and Tuesday. This system will likely bring anywhere from a dusting
to a few inches of snow and colder temperatures. There is still a
fair amount of differences in the weather model guidance, but the
risk for much colder temperatures than forecast does exist at this
time. The bottom line is to be prepared for cold wind chill and
temperatures from Monday night through Wednesday.



&&

.AVIATION...Light snow showers will continue to fall along the
Divide however, impacts to terminals will be very minor. Only KBTM
could see impacts to ceiling/visibility tonight from snowfall.
That being said, mountain obscurations will be present. Generally
unsettled weather will persist under northwest flow thereafter.


&&

.MSO WATCHES/WARNINGS/ADVISORIES...
MT...None.
ID...None.
&&

$$





000
FXUS65 KMSO 252136
AFDMSO

Area Forecast Discussion
National Weather Service Missoula MT
236 PM MST WED FEB 25 2015

...Well below normal temperatures expected this weekend into
early next week...

.DISCUSSION...

Northwesterly upper level flow will persist over the Northern
Rockies tonight through Friday. A weak arctic air mass will
continue to be ushered into the region causing a slightly cooling
trend from today to tomorrow. This arctic front will keep a few
showers lingering along the continental divide. Also a
disturbance will slide out of central Washington later tonight
into Friday morning causing an increase in shower activity of
Clearwater and Idaho counties. The Grangeville and Riggins area
could experience some light snow accumulations by Friday morning.

Another arctic air mass will move into western Montana Saturday.
The biggest impacts include: wind chill values in the single
digits below and above zero most places but teens below zero
towards the Continental Divide, very light snow causing possible
slick roads especially at mountain passes and vegetation that has
already budded from the recent warm spell. With high pressure
centered over southwest Montana Sunday morning, low temperatures
will generally be 15 to 20 degrees below normal.

The next arctic air mass will move into the region by Monday night
and Tuesday. This system will likely bring anywhere from a dusting
to a few inches of snow and colder temperatures. There is still a
fair amount of differences in the weather model guidance, but the
risk for much colder temperatures than forecast does exist at this
time. The bottom line is to be prepared for cold wind chill and
temperatures from Monday night through Wednesday.



&&

.AVIATION...Light snow showers will continue to fall along the
Divide however, impacts to terminals will be very minor. Only KBTM
could see impacts to ceiling/visibility tonight from snowfall.
That being said, mountain obscurations will be present. Generally
unsettled weather will persist under northwest flow thereafter.


&&

.MSO WATCHES/WARNINGS/ADVISORIES...
MT...None.
ID...None.
&&

$$





000
FXUS65 KMSO 252136
AFDMSO

Area Forecast Discussion
National Weather Service Missoula MT
236 PM MST WED FEB 25 2015

...Well below normal temperatures expected this weekend into
early next week...

.DISCUSSION...

Northwesterly upper level flow will persist over the Northern
Rockies tonight through Friday. A weak arctic air mass will
continue to be ushered into the region causing a slightly cooling
trend from today to tomorrow. This arctic front will keep a few
showers lingering along the continental divide. Also a
disturbance will slide out of central Washington later tonight
into Friday morning causing an increase in shower activity of
Clearwater and Idaho counties. The Grangeville and Riggins area
could experience some light snow accumulations by Friday morning.

Another arctic air mass will move into western Montana Saturday.
The biggest impacts include: wind chill values in the single
digits below and above zero most places but teens below zero
towards the Continental Divide, very light snow causing possible
slick roads especially at mountain passes and vegetation that has
already budded from the recent warm spell. With high pressure
centered over southwest Montana Sunday morning, low temperatures
will generally be 15 to 20 degrees below normal.

The next arctic air mass will move into the region by Monday night
and Tuesday. This system will likely bring anywhere from a dusting
to a few inches of snow and colder temperatures. There is still a
fair amount of differences in the weather model guidance, but the
risk for much colder temperatures than forecast does exist at this
time. The bottom line is to be prepared for cold wind chill and
temperatures from Monday night through Wednesday.



&&

.AVIATION...Light snow showers will continue to fall along the
Divide however, impacts to terminals will be very minor. Only KBTM
could see impacts to ceiling/visibility tonight from snowfall.
That being said, mountain obscurations will be present. Generally
unsettled weather will persist under northwest flow thereafter.


&&

.MSO WATCHES/WARNINGS/ADVISORIES...
MT...None.
ID...None.
&&

$$






000
FXUS65 KMSO 252136
AFDMSO

Area Forecast Discussion
National Weather Service Missoula MT
236 PM MST WED FEB 25 2015

...Well below normal temperatures expected this weekend into
early next week...

.DISCUSSION...

Northwesterly upper level flow will persist over the Northern
Rockies tonight through Friday. A weak arctic air mass will
continue to be ushered into the region causing a slightly cooling
trend from today to tomorrow. This arctic front will keep a few
showers lingering along the continental divide. Also a
disturbance will slide out of central Washington later tonight
into Friday morning causing an increase in shower activity of
Clearwater and Idaho counties. The Grangeville and Riggins area
could experience some light snow accumulations by Friday morning.

Another arctic air mass will move into western Montana Saturday.
The biggest impacts include: wind chill values in the single
digits below and above zero most places but teens below zero
towards the Continental Divide, very light snow causing possible
slick roads especially at mountain passes and vegetation that has
already budded from the recent warm spell. With high pressure
centered over southwest Montana Sunday morning, low temperatures
will generally be 15 to 20 degrees below normal.

The next arctic air mass will move into the region by Monday night
and Tuesday. This system will likely bring anywhere from a dusting
to a few inches of snow and colder temperatures. There is still a
fair amount of differences in the weather model guidance, but the
risk for much colder temperatures than forecast does exist at this
time. The bottom line is to be prepared for cold wind chill and
temperatures from Monday night through Wednesday.



&&

.AVIATION...Light snow showers will continue to fall along the
Divide however, impacts to terminals will be very minor. Only KBTM
could see impacts to ceiling/visibility tonight from snowfall.
That being said, mountain obscurations will be present. Generally
unsettled weather will persist under northwest flow thereafter.


&&

.MSO WATCHES/WARNINGS/ADVISORIES...
MT...None.
ID...None.
&&

$$






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