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000
FXUS66 KSTO 280419
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
919 PM PDT Wed Aug 27 2014

.Synopsis...
High pressure will bring dry weather and slightly above normal
temperatures, with a weak trough by Friday bringing
increasing high clouds and cooler temperatures into the weekend.
Near normal temperatures and dry weather for next week.

&&

.Discussion (Tonight through Saturday)...
High pressure remains over the interior. Some low clouds have
returned to the immediate coast this evening with some cooler
temperatures in the bay. The interior is running several degrees
warmer this evening and will eventually cool off into the low to
mid 60s for the valley and 40s and 50s for the mountain valleys.

A weak wave will pass well north of California on Thursday and
flatten the ridge a little but little change in temperatures is
expected when compared to todays highs.

On Friday a deeper low will develop over the west coast and some
high clouds from hurricane Marie may spread over parts of the
interior. The trough`s position is still trying to keep the high
clouds from spreading over the northern forecast area.

The trough will move just far enough east on Saturday to allow for
some light north winds to develop over the interior. Temperatures
in the morning should be cooler but the highs may only cool
slightly over Friday`s as a result of the northerly flow.

&&

.Extended Discussion (Sunday through Wednesday)

Dry northwesterly flow aloft over Interior NorCal Sunday into
Monday as deep short wave system progresses across the middle
part of the U.S. and upper ridging persists in the EPAC.
Temperatures are expected to be near normal. Models then show
another significant pacific short wave approaching Tuesday, tracking
across the PacNW Wed. This will bring lowering heights over NorCal as
troughing aloft deepens, resulting in some cooling with increased
onshore flow midweek.

&&

.Aviation...

VFR conds over interior Northern California the next 24 hours.

&&

.STO Watches/Warnings/Advisories...
None.
&&

$$









000
FXUS66 KSTO 280419
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
919 PM PDT Wed Aug 27 2014

.Synopsis...
High pressure will bring dry weather and slightly above normal
temperatures, with a weak trough by Friday bringing
increasing high clouds and cooler temperatures into the weekend.
Near normal temperatures and dry weather for next week.

&&

.Discussion (Tonight through Saturday)...
High pressure remains over the interior. Some low clouds have
returned to the immediate coast this evening with some cooler
temperatures in the bay. The interior is running several degrees
warmer this evening and will eventually cool off into the low to
mid 60s for the valley and 40s and 50s for the mountain valleys.

A weak wave will pass well north of California on Thursday and
flatten the ridge a little but little change in temperatures is
expected when compared to todays highs.

On Friday a deeper low will develop over the west coast and some
high clouds from hurricane Marie may spread over parts of the
interior. The trough`s position is still trying to keep the high
clouds from spreading over the northern forecast area.

The trough will move just far enough east on Saturday to allow for
some light north winds to develop over the interior. Temperatures
in the morning should be cooler but the highs may only cool
slightly over Friday`s as a result of the northerly flow.

&&

.Extended Discussion (Sunday through Wednesday)

Dry northwesterly flow aloft over Interior NorCal Sunday into
Monday as deep short wave system progresses across the middle
part of the U.S. and upper ridging persists in the EPAC.
Temperatures are expected to be near normal. Models then show
another significant pacific short wave approaching Tuesday, tracking
across the PacNW Wed. This will bring lowering heights over NorCal as
troughing aloft deepens, resulting in some cooling with increased
onshore flow midweek.

&&

.Aviation...

VFR conds over interior Northern California the next 24 hours.

&&

.STO Watches/Warnings/Advisories...
None.
&&

$$








000
FXUS66 KSTO 272238
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
338 PM PDT Wed Aug 27 2014

.Synopsis...
High pressure will bring dry weather and slightly above normal
temperatures, with a weak trough by Friday bringing
increasing high clouds and cooler temperatures into the weekend.
Near normal temperatures and dry weather for next week.

&&

.Discussion
Today has been a quiet weather day with clear skies and dry
weather with high pressure ridging developing over the area. This
has brought subsidence and dry air for northern California. The
main weather change has been warmer temperatures, which are
about 3 to 5 degrees higher than yesterday afternoon. Locations in
the northern Sacramento Valley haven`t increased as much and look
like they will fall short of triple digits. Winds have been rather
light today as well, even for the Delta areas, with just a trickle
increasing a little early this evening.

Hurricane Marie will continue to track to the northwest into the
Pacific and weakens. A rather dry upper level trough from the Gulf
of Alaska will move through the Pacific Northwest Friday into the
weekend which will flatten the ridge and bring some cooling.
Models still suggest the trough will pull some moisture out of
what will remain of Marie and bring it across Northern California
in the form of some clouds, mainly late Friday and early Saturday.
No precipitation is expected over the area.

Near normal temperatures expected for the weekend. Increasing
Delta breeze increasing Thursday and more on Friday. Breezy
northerly winds at times for the northern Sacramento valley Friday
night and Saturday.

&&

.Extended Discussion (Sunday through Wednesday)

Dry northwesterly flow aloft over Interior NorCal Sunday into
Monday as deep short wave system progresses across the middle
part of the U.S. and upper ridging persists in the EPAC.
Temperatures are expected to be near normal. Models then show
another significant pacific short wave approaching Tuesday, tracking
across the PacNW Wed. This will bring lowering heights over NorCal as
troughing aloft deepens, resulting in some cooling with increased
onshore flow midweek.

&&

.Aviation...

Upr rdg ovr Intr NorCal nxt 24 hrs with VFR conds and genly SKC.
Isold SWly sfc wnd gsts to 25 kts poss ovr hyr mtn trrn and thru
Delta aftns into eves.

&&

.STO Watches/Warnings/Advisories...
None.
&&

$$








000
FXUS66 KSTO 272238
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
338 PM PDT Wed Aug 27 2014

.Synopsis...
High pressure will bring dry weather and slightly above normal
temperatures, with a weak trough by Friday bringing
increasing high clouds and cooler temperatures into the weekend.
Near normal temperatures and dry weather for next week.

&&

.Discussion
Today has been a quiet weather day with clear skies and dry
weather with high pressure ridging developing over the area. This
has brought subsidence and dry air for northern California. The
main weather change has been warmer temperatures, which are
about 3 to 5 degrees higher than yesterday afternoon. Locations in
the northern Sacramento Valley haven`t increased as much and look
like they will fall short of triple digits. Winds have been rather
light today as well, even for the Delta areas, with just a trickle
increasing a little early this evening.

Hurricane Marie will continue to track to the northwest into the
Pacific and weakens. A rather dry upper level trough from the Gulf
of Alaska will move through the Pacific Northwest Friday into the
weekend which will flatten the ridge and bring some cooling.
Models still suggest the trough will pull some moisture out of
what will remain of Marie and bring it across Northern California
in the form of some clouds, mainly late Friday and early Saturday.
No precipitation is expected over the area.

Near normal temperatures expected for the weekend. Increasing
Delta breeze increasing Thursday and more on Friday. Breezy
northerly winds at times for the northern Sacramento valley Friday
night and Saturday.

&&

.Extended Discussion (Sunday through Wednesday)

Dry northwesterly flow aloft over Interior NorCal Sunday into
Monday as deep short wave system progresses across the middle
part of the U.S. and upper ridging persists in the EPAC.
Temperatures are expected to be near normal. Models then show
another significant pacific short wave approaching Tuesday, tracking
across the PacNW Wed. This will bring lowering heights over NorCal as
troughing aloft deepens, resulting in some cooling with increased
onshore flow midweek.

&&

.Aviation...

Upr rdg ovr Intr NorCal nxt 24 hrs with VFR conds and genly SKC.
Isold SWly sfc wnd gsts to 25 kts poss ovr hyr mtn trrn and thru
Delta aftns into eves.

&&

.STO Watches/Warnings/Advisories...
None.
&&

$$









000
FXUS66 KSTO 271600
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
900 AM PDT Wed Aug 27 2014

.Synopsis...
High pressure will bring a slight warming trend the next couple
of days, followed by a weak trough by this weekend bringing
increasing high clouds and cooler temperatures.

&&

.Discussion
A quiet weather day today with sunny skies and dry weather as the
upper level trough that moved through Monday and Tuesday exits
well to the east. High pressure ridging developing over the area
is bringing subsidence and dry air for northern California. The
main weather change for today is warmer temperatures, which are
already 2 to 8 degrees higher than this time yesterday. This will
persist through the day today, with some locations in the northern
Sacramento Valley possibly reaching triple digits. Winds will be
rather light today as well, even for the Delta areas, with just a trickle
increasing some early this evening. Forecast looks on track so far,
no changes made.

.Previous Short Term Discussion (Tonight through Friday)...
Satellite imagery shows high pressure over the Eastern Pacific
building into California and bringing clear skies over the area.
Hurricane Marie, currently centered 21N 123W, is drifting to the
WNW away from land and gradually looking more disorganized on
satellite loops. Temperatures across Northern California are
running up to 7 degrees warmer than last night owing mostly to
synoptic warming.

The upper level ridge axis will shift over California today and
Thursday, bringing a bit of warming over yesterday. Look for highs
in the 90s across most of the Valley, with right around 100
degrees possible near Redding. Highs over the mountains will be in
the 70s to lower 90s.

A trough will move through the Pacific Northwest later this week
and bring some cooling. Deterministic models and ensemble analyses
continue to show good agreement bringing some moisture out of what
will remain of Marie and advecting it across Northern California.
The precipitable water that reaches NorCal looks only marginally
anomalous; the current expectation is for some high clouds and
possibly a sprinkle over the forecast area Friday and Saturday,
but nothing more.

Dang

&&

.Extended Discussion (Sunday through Wednesday)

The pattern through the extended period will be dominated by a
ridge of high pressure along the Eastern Pacific, and a general
troughy pattern over the Pacific Northwest. NorCal should remain
under dry northwesterly flow aloft, bringing dry weather along
with seasonal temperatures.

Dang


&&

.Aviation...

VFR conditions over the interior the next 24 hours. Winds
generally around 10 knots or less. Delta areas southwest 5 to 15 with gusts
to 20 knots through the delta late this afternoon/evening.


&&

.STO Watches/Warnings/Advisories...
None.
&&

$$











000
FXUS66 KSTO 271600
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
900 AM PDT Wed Aug 27 2014

.Synopsis...
High pressure will bring a slight warming trend the next couple
of days, followed by a weak trough by this weekend bringing
increasing high clouds and cooler temperatures.

&&

.Discussion
A quiet weather day today with sunny skies and dry weather as the
upper level trough that moved through Monday and Tuesday exits
well to the east. High pressure ridging developing over the area
is bringing subsidence and dry air for northern California. The
main weather change for today is warmer temperatures, which are
already 2 to 8 degrees higher than this time yesterday. This will
persist through the day today, with some locations in the northern
Sacramento Valley possibly reaching triple digits. Winds will be
rather light today as well, even for the Delta areas, with just a trickle
increasing some early this evening. Forecast looks on track so far,
no changes made.

.Previous Short Term Discussion (Tonight through Friday)...
Satellite imagery shows high pressure over the Eastern Pacific
building into California and bringing clear skies over the area.
Hurricane Marie, currently centered 21N 123W, is drifting to the
WNW away from land and gradually looking more disorganized on
satellite loops. Temperatures across Northern California are
running up to 7 degrees warmer than last night owing mostly to
synoptic warming.

The upper level ridge axis will shift over California today and
Thursday, bringing a bit of warming over yesterday. Look for highs
in the 90s across most of the Valley, with right around 100
degrees possible near Redding. Highs over the mountains will be in
the 70s to lower 90s.

A trough will move through the Pacific Northwest later this week
and bring some cooling. Deterministic models and ensemble analyses
continue to show good agreement bringing some moisture out of what
will remain of Marie and advecting it across Northern California.
The precipitable water that reaches NorCal looks only marginally
anomalous; the current expectation is for some high clouds and
possibly a sprinkle over the forecast area Friday and Saturday,
but nothing more.

Dang

&&

.Extended Discussion (Sunday through Wednesday)

The pattern through the extended period will be dominated by a
ridge of high pressure along the Eastern Pacific, and a general
troughy pattern over the Pacific Northwest. NorCal should remain
under dry northwesterly flow aloft, bringing dry weather along
with seasonal temperatures.

Dang


&&

.Aviation...

VFR conditions over the interior the next 24 hours. Winds
generally around 10 knots or less. Delta areas southwest 5 to 15 with gusts
to 20 knots through the delta late this afternoon/evening.


&&

.STO Watches/Warnings/Advisories...
None.
&&

$$










000
FXUS66 KSTO 271019
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
319 AM PDT Wed Aug 27 2014

.Synopsis...
High pressure will bring a slight warming trend the next couple
of days, followed by a weak trough by this weekend bringing
increasing high clouds and cooler temperatures.

&&

.Short Term Discussion (Tonight through Friday)...
Satellite imagery shows high pressure over the Eastern Pacific
building into California and bringing clear skies over the area.
Hurricane Marie, currently centered 21N 123W, is drifting to the
WNW away from land and gradually looking more disorganized on
satellite loops. Temperatures across Northern California are
running up to 7 degrees warmer than last night owing mostly to
synoptic warming.

The upper level ridge axis will shift over California today and
Thursday, bringing a bit of warming over yesterday. Look for highs
in the 90s across most of the Valley, with right around 100
degrees possible near Redding. Highs over the mountains will be in
the 70s to lower 90s.

A trough will move through the Pacific Northwest later this week
and bring some cooling. Deterministic models and ensemble analyses
continue to show good agreement bringing some moisture out of what
will remain of Marie and advecting it across Northern California.
The precipitable water that reaches NorCal looks only marginally
anomalous; the current expectation is for some high clouds and
possibly a sprinkle over the forecast area Friday and Saturday,
but nothing more.

Dang

&&

.Extended Discussion (Sunday through Wednesday)

The pattern through the extended period will be dominated by a
ridge of high pressure along the Eastern Pacific, and a general
troughy pattern over the Pacific Northwest. NorCal should remain
under dry northwesterly flow aloft, bringing dry weather along
with seasonal temperatures.

Dang


&&

.Aviation...

VFR conditions over the interior the next 24 hours. Winds
generally below 15 knots except southwest 10 to 20 gusts to 30
knots through the delta.


&&

.STO Watches/Warnings/Advisories...
None.
&&

$$









000
FXUS66 KSTO 271019
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
319 AM PDT Wed Aug 27 2014

.Synopsis...
High pressure will bring a slight warming trend the next couple
of days, followed by a weak trough by this weekend bringing
increasing high clouds and cooler temperatures.

&&

.Short Term Discussion (Tonight through Friday)...
Satellite imagery shows high pressure over the Eastern Pacific
building into California and bringing clear skies over the area.
Hurricane Marie, currently centered 21N 123W, is drifting to the
WNW away from land and gradually looking more disorganized on
satellite loops. Temperatures across Northern California are
running up to 7 degrees warmer than last night owing mostly to
synoptic warming.

The upper level ridge axis will shift over California today and
Thursday, bringing a bit of warming over yesterday. Look for highs
in the 90s across most of the Valley, with right around 100
degrees possible near Redding. Highs over the mountains will be in
the 70s to lower 90s.

A trough will move through the Pacific Northwest later this week
and bring some cooling. Deterministic models and ensemble analyses
continue to show good agreement bringing some moisture out of what
will remain of Marie and advecting it across Northern California.
The precipitable water that reaches NorCal looks only marginally
anomalous; the current expectation is for some high clouds and
possibly a sprinkle over the forecast area Friday and Saturday,
but nothing more.

Dang

&&

.Extended Discussion (Sunday through Wednesday)

The pattern through the extended period will be dominated by a
ridge of high pressure along the Eastern Pacific, and a general
troughy pattern over the Pacific Northwest. NorCal should remain
under dry northwesterly flow aloft, bringing dry weather along
with seasonal temperatures.

Dang


&&

.Aviation...

VFR conditions over the interior the next 24 hours. Winds
generally below 15 knots except southwest 10 to 20 gusts to 30
knots through the delta.


&&

.STO Watches/Warnings/Advisories...
None.
&&

$$









000
FXUS66 KSTO 271019
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
319 AM PDT Wed Aug 27 2014

.Synopsis...
High pressure will bring a slight warming trend the next couple
of days, followed by a weak trough by this weekend bringing
increasing high clouds and cooler temperatures.

&&

.Short Term Discussion (Tonight through Friday)...
Satellite imagery shows high pressure over the Eastern Pacific
building into California and bringing clear skies over the area.
Hurricane Marie, currently centered 21N 123W, is drifting to the
WNW away from land and gradually looking more disorganized on
satellite loops. Temperatures across Northern California are
running up to 7 degrees warmer than last night owing mostly to
synoptic warming.

The upper level ridge axis will shift over California today and
Thursday, bringing a bit of warming over yesterday. Look for highs
in the 90s across most of the Valley, with right around 100
degrees possible near Redding. Highs over the mountains will be in
the 70s to lower 90s.

A trough will move through the Pacific Northwest later this week
and bring some cooling. Deterministic models and ensemble analyses
continue to show good agreement bringing some moisture out of what
will remain of Marie and advecting it across Northern California.
The precipitable water that reaches NorCal looks only marginally
anomalous; the current expectation is for some high clouds and
possibly a sprinkle over the forecast area Friday and Saturday,
but nothing more.

Dang

&&

.Extended Discussion (Sunday through Wednesday)

The pattern through the extended period will be dominated by a
ridge of high pressure along the Eastern Pacific, and a general
troughy pattern over the Pacific Northwest. NorCal should remain
under dry northwesterly flow aloft, bringing dry weather along
with seasonal temperatures.

Dang


&&

.Aviation...

VFR conditions over the interior the next 24 hours. Winds
generally below 15 knots except southwest 10 to 20 gusts to 30
knots through the delta.


&&

.STO Watches/Warnings/Advisories...
None.
&&

$$










000
FXUS66 KSTO 271019
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
319 AM PDT Wed Aug 27 2014

.Synopsis...
High pressure will bring a slight warming trend the next couple
of days, followed by a weak trough by this weekend bringing
increasing high clouds and cooler temperatures.

&&

.Short Term Discussion (Tonight through Friday)...
Satellite imagery shows high pressure over the Eastern Pacific
building into California and bringing clear skies over the area.
Hurricane Marie, currently centered 21N 123W, is drifting to the
WNW away from land and gradually looking more disorganized on
satellite loops. Temperatures across Northern California are
running up to 7 degrees warmer than last night owing mostly to
synoptic warming.

The upper level ridge axis will shift over California today and
Thursday, bringing a bit of warming over yesterday. Look for highs
in the 90s across most of the Valley, with right around 100
degrees possible near Redding. Highs over the mountains will be in
the 70s to lower 90s.

A trough will move through the Pacific Northwest later this week
and bring some cooling. Deterministic models and ensemble analyses
continue to show good agreement bringing some moisture out of what
will remain of Marie and advecting it across Northern California.
The precipitable water that reaches NorCal looks only marginally
anomalous; the current expectation is for some high clouds and
possibly a sprinkle over the forecast area Friday and Saturday,
but nothing more.

Dang

&&

.Extended Discussion (Sunday through Wednesday)

The pattern through the extended period will be dominated by a
ridge of high pressure along the Eastern Pacific, and a general
troughy pattern over the Pacific Northwest. NorCal should remain
under dry northwesterly flow aloft, bringing dry weather along
with seasonal temperatures.

Dang


&&

.Aviation...

VFR conditions over the interior the next 24 hours. Winds
generally below 15 knots except southwest 10 to 20 gusts to 30
knots through the delta.


&&

.STO Watches/Warnings/Advisories...
None.
&&

$$










000
FXUS66 KSTO 270415
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
915 PM PDT Tue Aug 26 2014

.Synopsis...
High pressure will bring a slight warming trend the next couple
of days, followed by a weak trough by this weekend bringing
increasing high clouds and cooler temperatures.

&&

.Short Term Discussion (Tonight through Friday)...
High pressure building over the interior tonight is helping to
keep temperatures a little warmer this evening. Temperatures are
generally running about 5 degrees warmer at this time compared to
last night. There is moderate flow through the delta this evening.
Temperatures will cool into the upper 50s to mid 60s in the
valley overnight to mainly 40s and 50s for the mountain
valleys.

The high pressure will strengthen a little for Wednesday and
temperatures will warm a couple of degrees over todays highs. A
weak wave will pass well north of California on Thursday and
flatten the ridge a little but little change in temperatures is
expected when compared to Wednesday`s highs.

On Friday a deeper low will develop over the west coast and some
high clouds from hurricane Marie may spread over parts of the
interior. The trough`s position is currently trying to keep the
high clouds from spreading over the northern forecast area.

&&

.Extended Discussion (Saturday through Tuesday)

An upper level trough over the Western U.S. on Saturday and Sunday
bringing some clouds and onshore flow along with cooler
temperatures. High temperatures are generally expected to be in
the mid 80s to low 90s in the valley and 60s and 70s in the
mountains this weekend. On Monday and Tuesday, Northern California
is between the trough to the east and ridge of High pressure to
the west over the Eastern Pacific. This will bring a little warmer
temperatures along with dry Northwest flow aloft. Max temperatures
will be in the upper 80s to upper 90s in the Valley and mid 60s to
mid 80s in the mountains on Monday and Tuesday.

&&

.Aviation...

VFR conditions over the interior the next 24 hours.


&&

.STO Watches/Warnings/Advisories...
None.
&&

$$









000
FXUS66 KSTO 270415
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
915 PM PDT Tue Aug 26 2014

.Synopsis...
High pressure will bring a slight warming trend the next couple
of days, followed by a weak trough by this weekend bringing
increasing high clouds and cooler temperatures.

&&

.Short Term Discussion (Tonight through Friday)...
High pressure building over the interior tonight is helping to
keep temperatures a little warmer this evening. Temperatures are
generally running about 5 degrees warmer at this time compared to
last night. There is moderate flow through the delta this evening.
Temperatures will cool into the upper 50s to mid 60s in the
valley overnight to mainly 40s and 50s for the mountain
valleys.

The high pressure will strengthen a little for Wednesday and
temperatures will warm a couple of degrees over todays highs. A
weak wave will pass well north of California on Thursday and
flatten the ridge a little but little change in temperatures is
expected when compared to Wednesday`s highs.

On Friday a deeper low will develop over the west coast and some
high clouds from hurricane Marie may spread over parts of the
interior. The trough`s position is currently trying to keep the
high clouds from spreading over the northern forecast area.

&&

.Extended Discussion (Saturday through Tuesday)

An upper level trough over the Western U.S. on Saturday and Sunday
bringing some clouds and onshore flow along with cooler
temperatures. High temperatures are generally expected to be in
the mid 80s to low 90s in the valley and 60s and 70s in the
mountains this weekend. On Monday and Tuesday, Northern California
is between the trough to the east and ridge of High pressure to
the west over the Eastern Pacific. This will bring a little warmer
temperatures along with dry Northwest flow aloft. Max temperatures
will be in the upper 80s to upper 90s in the Valley and mid 60s to
mid 80s in the mountains on Monday and Tuesday.

&&

.Aviation...

VFR conditions over the interior the next 24 hours.


&&

.STO Watches/Warnings/Advisories...
None.
&&

$$








000
FXUS66 KSTO 262212
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
312 PM PDT Tue Aug 26 2014

.Synopsis...
High pressure rebuilds with a warming trend through the remainder
of the week, followed by a weak trough later this week bringing
increasing high clouds and cooler temperatures.

&&

.Short Term Discussion (Tonight through Friday)...
Ridging built back in today. As a result, temperatures are
roughly 5-9 deg F warmer than 24 hrs ago.

Temperatures this week are forecast to top out on Wednesday and
Thursday as the upper ridge moves overhead. Portions of the
Central Valley, especially the north end of the Sacramento Valley,
may once again reach triple digits these two days.

By Friday, another trough is forecast to approach from the Gulf
of Alaska lowering heights and bringing increased onshore flow
resulting in another cool down. The region will also likely see an
increase in high clouds emanating from the remnants of Hurricane
Marie. However, it`s looking more likely that deeper moisture will
remain well offshore west of 130W, keeping the area precipitation-
free. JClapp

&&

.Extended Discussion (Saturday through Tuesday)
An upper level trough over the Western U.S. on Saturday and
Sunday bringing some clouds and onshore flow along with cooler
temperatures. High temperatures are generally expected to be in
the mid 80s to low 90s in the valley and 60s and 70s in the
mountains this weekend. On Monday and Tuesday, Northern California
is between the trough to the east and ridge of High pressure to
the west over the Eastern Pacific. This will bring a little warmer
temperatures along with dry Northwest flow aloft. Max temperatures
will be in the upper 80s to upper 90s in the Valley and mid 60s to
mid 80s in the mountains on Monday and Tuesday.

&&

.Aviation...

Mainly VFR conditions the next 24 hours. Winds will remain below
15 kt today across Valley TAF sites, with SW winds 15-25 kt near
the Delta.

JClapp


&&

.STO Watches/Warnings/Advisories...
None.
&&

$$








000
FXUS66 KSTO 262212
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
312 PM PDT Tue Aug 26 2014

.Synopsis...
High pressure rebuilds with a warming trend through the remainder
of the week, followed by a weak trough later this week bringing
increasing high clouds and cooler temperatures.

&&

.Short Term Discussion (Tonight through Friday)...
Ridging built back in today. As a result, temperatures are
roughly 5-9 deg F warmer than 24 hrs ago.

Temperatures this week are forecast to top out on Wednesday and
Thursday as the upper ridge moves overhead. Portions of the
Central Valley, especially the north end of the Sacramento Valley,
may once again reach triple digits these two days.

By Friday, another trough is forecast to approach from the Gulf
of Alaska lowering heights and bringing increased onshore flow
resulting in another cool down. The region will also likely see an
increase in high clouds emanating from the remnants of Hurricane
Marie. However, it`s looking more likely that deeper moisture will
remain well offshore west of 130W, keeping the area precipitation-
free. JClapp

&&

.Extended Discussion (Saturday through Tuesday)
An upper level trough over the Western U.S. on Saturday and
Sunday bringing some clouds and onshore flow along with cooler
temperatures. High temperatures are generally expected to be in
the mid 80s to low 90s in the valley and 60s and 70s in the
mountains this weekend. On Monday and Tuesday, Northern California
is between the trough to the east and ridge of High pressure to
the west over the Eastern Pacific. This will bring a little warmer
temperatures along with dry Northwest flow aloft. Max temperatures
will be in the upper 80s to upper 90s in the Valley and mid 60s to
mid 80s in the mountains on Monday and Tuesday.

&&

.Aviation...

Mainly VFR conditions the next 24 hours. Winds will remain below
15 kt today across Valley TAF sites, with SW winds 15-25 kt near
the Delta.

JClapp


&&

.STO Watches/Warnings/Advisories...
None.
&&

$$









000
FXUS66 KSTO 261622
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
922 AM PDT Tue Aug 26 2014

.Synopsis...
High pressure rebuilds with a warming trend through the remainder
of the week, followed by a weak trough later this week bringing
increasing high clouds and cooler temperatures.

&&

.Discussion...
After a cooler Monday due to the upper Low transiting the area,
temperatures will begin to warm across the interior of NorCal
today and atmosphere will stabilize as high pressure builds in
from the eastern Pacific. Readings today are expected to top out
around 5-10 degrees warmer than on Monday as onshore flow weakens
and the overall airmass warms in response to rising heights aloft
(850 mb temps forecast to increase around 3-4 degrees C).

Temperatures this week are forecast to top out on Tuesday and
Wednesday as the upper ridge moves overhead. Portions of the
Central Valley, especially the north end of the Sacramento Valley,
may once again reach triple digits these two days.

By Friday and Saturday, another trough is forecast to approach
from the Gulf of Alaska lowering heights and bringing increased
onshore flow resulting in another cool down. The region will also
likely see an increase in high clouds emanating from the remnants
of Hurricane Marie, however it`s looking more likely that deeper
moisture will remain well offshore west of 130W.

&&

.Aviation...
Mainly VFR conditions the next 24 hours. Winds will remain below
15 kt today across Valley TAF sites, with SW winds 15-25 kt near
the Delta.

JClapp


&&

.STO Watches/Warnings/Advisories...
None.
&&

$$









000
FXUS66 KSTO 261622
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
922 AM PDT Tue Aug 26 2014

.Synopsis...
High pressure rebuilds with a warming trend through the remainder
of the week, followed by a weak trough later this week bringing
increasing high clouds and cooler temperatures.

&&

.Discussion...
After a cooler Monday due to the upper Low transiting the area,
temperatures will begin to warm across the interior of NorCal
today and atmosphere will stabilize as high pressure builds in
from the eastern Pacific. Readings today are expected to top out
around 5-10 degrees warmer than on Monday as onshore flow weakens
and the overall airmass warms in response to rising heights aloft
(850 mb temps forecast to increase around 3-4 degrees C).

Temperatures this week are forecast to top out on Tuesday and
Wednesday as the upper ridge moves overhead. Portions of the
Central Valley, especially the north end of the Sacramento Valley,
may once again reach triple digits these two days.

By Friday and Saturday, another trough is forecast to approach
from the Gulf of Alaska lowering heights and bringing increased
onshore flow resulting in another cool down. The region will also
likely see an increase in high clouds emanating from the remnants
of Hurricane Marie, however it`s looking more likely that deeper
moisture will remain well offshore west of 130W.

&&

.Aviation...
Mainly VFR conditions the next 24 hours. Winds will remain below
15 kt today across Valley TAF sites, with SW winds 15-25 kt near
the Delta.

JClapp


&&

.STO Watches/Warnings/Advisories...
None.
&&

$$








000
FXUS66 KSTO 261017
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
317 AM PDT Tue Aug 26 2014

.Synopsis...
High pressure rebuilds with a warming trend through the remainder
of the week, followed by a weak trough later this week bringing
increasing high clouds and cooler temperatures.

&&

.Discussion...
Clear skies across the interior of NorCal early this morning as
the weather system that brought showers and thunderstorms to the
crest of the northern Sierra on Monday has begun to shift east.
Temperatures are running about the same as 24 hours ago.

After a cool down on Monday, temperatures will begin to warm
across the interior of NorCal today as high pressure builds in
from the eastern Pacific. Readings today are expected to top out
around 5-10 degrees warmer than on Monday as onshore flow weakens
and the overall airmass warms in response to rising heights aloft
(850 mb temps forecast to increase around 3-4 degrees C).

Temperatures this week are forecast to top out on Tuesday and
Wednesday as the upper ridge moves overhead. Portions of the
Central Valley, especially the north end of the Sacramento Valley,
may once again reach triple digits these two days.

By Friday and Saturday, another trough is forecast to approach
from the Gulf of Alaska lowering heights and bringing increased
onshore flow resulting in another cool down. The region will also
likely see an increase in high clouds emanating from the remnants
of Hurricane Marie, however it`s looking more likely that deeper
moisture will remain well offshore west of 130W.

&&

.Aviation...
Mainly VFR conds the next 24 hours, except patchy IFR conds along
the western Delta early this morning. Winds will remain below 15
kts today across Valley TAF sites, with SW winds 15-25 kt near the
Delta. Dang

&&

.STO Watches/Warnings/Advisories...None.

&&

$$






000
FXUS66 KSTO 261017
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
317 AM PDT Tue Aug 26 2014

.Synopsis...
High pressure rebuilds with a warming trend through the remainder
of the week, followed by a weak trough later this week bringing
increasing high clouds and cooler temperatures.

&&

.Discussion...
Clear skies across the interior of NorCal early this morning as
the weather system that brought showers and thunderstorms to the
crest of the northern Sierra on Monday has begun to shift east.
Temperatures are running about the same as 24 hours ago.

After a cool down on Monday, temperatures will begin to warm
across the interior of NorCal today as high pressure builds in
from the eastern Pacific. Readings today are expected to top out
around 5-10 degrees warmer than on Monday as onshore flow weakens
and the overall airmass warms in response to rising heights aloft
(850 mb temps forecast to increase around 3-4 degrees C).

Temperatures this week are forecast to top out on Tuesday and
Wednesday as the upper ridge moves overhead. Portions of the
Central Valley, especially the north end of the Sacramento Valley,
may once again reach triple digits these two days.

By Friday and Saturday, another trough is forecast to approach
from the Gulf of Alaska lowering heights and bringing increased
onshore flow resulting in another cool down. The region will also
likely see an increase in high clouds emanating from the remnants
of Hurricane Marie, however it`s looking more likely that deeper
moisture will remain well offshore west of 130W.

&&

.Aviation...
Mainly VFR conds the next 24 hours, except patchy IFR conds along
the western Delta early this morning. Winds will remain below 15
kts today across Valley TAF sites, with SW winds 15-25 kt near the
Delta. Dang

&&

.STO Watches/Warnings/Advisories...None.

&&

$$





000
FXUS66 KSTO 260359
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
859 PM PDT Mon Aug 25 2014

.Synopsis...
A weather system moves east tonight. High pressure rebuilds with
a warming trend through the remainder of the week, followed by a
weak trough this weekend with potential cloudiness and light
showers due to remnant moisture from former Hurricane Marie.

&&

.Discussion...
Showers and thunderstorms have earlier alone the crest and points
to the east have died down this evening. A low pressure trough
over the west coast will gradually move to the east over the next
24 to 36 hours and high pressure will build over the region.
Warming over the interior will occur the next couple of days for a
warming trend that will raise temperatures to around normal for
this time of year.

A trough of low pressure will move into the west coast this
weekend. Moisture from hurricane Marie will move northward into
the low and over the region. The models are showing mainly
cloudiness at this point moving over Northern California starting
on Friday. It something that we will have to watch the next few
days to see how the two interact. At the very least the
combination of the trough and cloud cover should bring cooler
temperatures this weekend to the interior.

&&

.Extended Discussion (Friday through Monday)

Upper level high pressure ridge over the western CONUS will
dominate the pattern Thursday. Daytime highs should top out a few
degrees above normal under fair skies and generally light winds.
The upper ridge axis shifts over the Great Basin on Friday. All
models indicate some form of troughing move over the West Coast
and western Great Basin over the weekend with some overall cooling
and increased onshore flow. Models indicate a trough deep enough
to bring a slight chance of light precip to the northern mountains
Saturday. The GFS brings in more extratropical moisture into
northern CA from now Hurricane Marie, while the ECMWF has less
moisture.     JClapp

&&

.Aviation...

Mainly VFR conditions the next 24 hours. Winds should increase
slightly Tue afternoon through Delta and over Sierra.


&&

.STO Watches/Warnings/Advisories...
None.
&&

$$









000
FXUS66 KSTO 260359
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
859 PM PDT Mon Aug 25 2014

.Synopsis...
A weather system moves east tonight. High pressure rebuilds with
a warming trend through the remainder of the week, followed by a
weak trough this weekend with potential cloudiness and light
showers due to remnant moisture from former Hurricane Marie.

&&

.Discussion...
Showers and thunderstorms have earlier alone the crest and points
to the east have died down this evening. A low pressure trough
over the west coast will gradually move to the east over the next
24 to 36 hours and high pressure will build over the region.
Warming over the interior will occur the next couple of days for a
warming trend that will raise temperatures to around normal for
this time of year.

A trough of low pressure will move into the west coast this
weekend. Moisture from hurricane Marie will move northward into
the low and over the region. The models are showing mainly
cloudiness at this point moving over Northern California starting
on Friday. It something that we will have to watch the next few
days to see how the two interact. At the very least the
combination of the trough and cloud cover should bring cooler
temperatures this weekend to the interior.

&&

.Extended Discussion (Friday through Monday)

Upper level high pressure ridge over the western CONUS will
dominate the pattern Thursday. Daytime highs should top out a few
degrees above normal under fair skies and generally light winds.
The upper ridge axis shifts over the Great Basin on Friday. All
models indicate some form of troughing move over the West Coast
and western Great Basin over the weekend with some overall cooling
and increased onshore flow. Models indicate a trough deep enough
to bring a slight chance of light precip to the northern mountains
Saturday. The GFS brings in more extratropical moisture into
northern CA from now Hurricane Marie, while the ECMWF has less
moisture.     JClapp

&&

.Aviation...

Mainly VFR conditions the next 24 hours. Winds should increase
slightly Tue afternoon through Delta and over Sierra.


&&

.STO Watches/Warnings/Advisories...
None.
&&

$$








000
FXUS66 KSTO 252227
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
327 PM PDT Mon Aug 25 2014

.Synopsis...
A weather system moves east tonight with isolated thunderstorms
from Lassen Park to Quincy area this evening. High pressure
rebuilds with a warming trend through the remainder of the week,
followed by a weak trough this weekend with potential cloudiness
and light showers due to remnant moisture from former Hurricane
Marie.

&&

.Discussion...
The Low center is shifting east over southern Oregon/Idaho border
with the trough progressing through NW Nevada/NE California this
afternoon/evening. Isolated convection is extending from Low back
into Lassen and eastern Plumas counties. Isolated cell could very
well pop up near Lassen Park, Lake Almanor, and Quincy, as
depicted on the High Resolution Rapid Refresh (HRRR) model. Most
will stay east of the crest into this evening.

An upper level eastern Pacific ridge is then forecast to rebuild
across the region Tuesday continuing through the remainder of the
week resulting in a warming trend for interior NorCal. Latest
forecast models are trying to figure out how and when to
incorporate the moisture from the remnants of Hurricane Marie with
the next upstream trough approaching for the Labor Day weekend,
but we`ll continue to monitor. The approaching upper level trough
and ridge couplet over the central and eastern Pacific does not
look very amplified at this time. Therefore, not so sure the
moisture will have much in the way of precipitation. But, the
best chance for any precipitation would be Saturday. In all
likelihood, it could be some light showers/sprinkles and abundant
clouds with cooler temperatures.      JClapp

&&

.Aviation...
Mainly VFR conditions the next 24 hours. Isolated TS possible
along the Sierra this evening. Winds have weakened today, but
should increase slightly Tue afternoon through Delta and over
Sierra.   JClapp

&&

.STO Watches/Warnings/Advisories...
None.
&&

$$









000
FXUS66 KSTO 252227
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
327 PM PDT Mon Aug 25 2014

.Synopsis...
A weather system moves east tonight with isolated thunderstorms
from Lassen Park to Quincy area this evening. High pressure
rebuilds with a warming trend through the remainder of the week,
followed by a weak trough this weekend with potential cloudiness
and light showers due to remnant moisture from former Hurricane
Marie.

&&

.Discussion...
The Low center is shifting east over southern Oregon/Idaho border
with the trough progressing through NW Nevada/NE California this
afternoon/evening. Isolated convection is extending from Low back
into Lassen and eastern Plumas counties. Isolated cell could very
well pop up near Lassen Park, Lake Almanor, and Quincy, as
depicted on the High Resolution Rapid Refresh (HRRR) model. Most
will stay east of the crest into this evening.

An upper level eastern Pacific ridge is then forecast to rebuild
across the region Tuesday continuing through the remainder of the
week resulting in a warming trend for interior NorCal. Latest
forecast models are trying to figure out how and when to
incorporate the moisture from the remnants of Hurricane Marie with
the next upstream trough approaching for the Labor Day weekend,
but we`ll continue to monitor. The approaching upper level trough
and ridge couplet over the central and eastern Pacific does not
look very amplified at this time. Therefore, not so sure the
moisture will have much in the way of precipitation. But, the
best chance for any precipitation would be Saturday. In all
likelihood, it could be some light showers/sprinkles and abundant
clouds with cooler temperatures.      JClapp

&&

.Aviation...
Mainly VFR conditions the next 24 hours. Isolated TS possible
along the Sierra this evening. Winds have weakened today, but
should increase slightly Tue afternoon through Delta and over
Sierra.   JClapp

&&

.STO Watches/Warnings/Advisories...
None.
&&

$$








000
FXUS66 KSTO 251752
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
1052 AM PDT Mon Aug 25 2014

.Synopsis...
A weather system will drop down from the north today bringing a
chance for a few showers and thunderstorms to the northern Sierra
and Lassen Park area, otherwise the remainder of interior NorCal
will continue to see mild temperatures. High pressure rebuilds
through the remainder of the week for a warming trend.

&&

.Discussion...
The dry slot around this Low is over NorCal this morning with the
leading high clouds over San Joaquin, Stanislaus, and Tuolumne
counties. Isolated thunderstorms are over eastern Lassen on the
eastern edge of this dry slot this morning. Later today we may
see some isolated storms toward Lassen Park and western Plumas
county as the dry slot and some instability pulls south and east,
as is depicted on the High Resolution Rapid Refresh (HRRR) model.

Strong high pressure over the eastern Pacific is then forecast to
rebuild across the region beginning on Tuesday continuing through
the remainder of the week resulting in a warm-up for interior
NorCal. Latest forecast models are trying to figure out how and
when to incorporate the moisture from the remnants of Hurricane
Marie with the next upstream trough approaching for the weekend,
but we`ll continue to monitor. The approaching upper level trough
and ridge couplet over the Eastern Pacific does not look very
amplified at this time. Therefore, not so sure the moisture will
have much in the way of precipitation. In all likelihood, it could
be some light showers/sprinkles and abundant clouds. The best
chance for this timing is early Saturday into early Sunday.
JClapp

&&

.Aviation...

Mainly VFR conditions the next 24 hours. Isolated TS possible
along the Sierra this afternoon. South to west winds 10 to 15 kt
will continue across Valley TAF sites, with SW 20-25 kt expected
near the Delta.

Dang/JClapp


&&

.STO Watches/Warnings/Advisories...
None.
&&

$$









000
FXUS66 KSTO 251031
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
331 AM PDT Mon Aug 25 2014

.Synopsis...
A weather system will drop down from the north today bringing a
chance for a few showers and thunderstorms to the northern Sierra
and Lassen Park area, otherwise the remainder of interior NorCal
will continue to see mild temperatures. High pressure rebuilds
through the remainder of the week for a warming trend.

&&

.Discussion...
Some high clouds running ahead of the system dropping south
through the PacNW have moved across NorCal early this morning, and
some stratus is beginning to work its way into the valley to the
south of Travis AFB as onshore gradients have strengthened
considerably from 24 hours ago. Temperatures are a little cooler
than 24 hours ago across most of the region and range from the 40s
and 50s in the mountains to the upper 50s to around 70 in the
valley.

Next system dropping down from the north is still generating
considerable clouds and even a few thunderstorms early this
morning ahead of the main short-wave moving down through the
PacNW. This system forecast to close off across north-central or
northwest NV today and will likely be close enough to eastern
portions of the forecast area for a slight chance of showers and
thunderstorms along the crest of the northern Sierra and around
the Mt. Lassen area. It will also help to keep temperatures
moderated for another day.

Strong high pressure over the eastern Pacific is then forecast to
rebuild across the region beginning on Tuesday continuing through
the remainder of the week resulting in a warm-up for interior
NorCal. Latest forecast models presently do not synch up moisture
from the remnants of Hurricane Marie with the next upstream trough
approaching for the weekend, but we`ll continue to monitor.

&&

.Aviation...
Mainly VFR conditions the next 24 hours. MVFR/IFR ceilings
continue near the Delta through about 18z, with a few stratus
clouds possible across Sacramento TAF sites early this morning.
Isolated TS possible along the Sierra this afternoon. South to
west winds 10 to 15 kt will continue across Valley TAF sites, with
SW 20-30 kt expected near the Delta. Dang

&&

.STO Watches/Warnings/Advisories...None.

&&

$$





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