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000
FXUS66 KSTO 311536
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
836 AM PDT Tue Mar 31 2015

.Synopsis...
Cooler, but still above normal weather expected this week. Weak
weather systems may bring a few showers to the mountains today and
Wednesday. Another chance of precipitation arrives this weekend.

&&

.Discussion...
Forecast on track so no updates this morning. Current radar has
scattered showers across Humboldt and Trinity counties moving
eastward toward the Coastal Mountains. Some of those showers could
impact the higher terrain across interior NorCal this afternoon,
mainly in Shasta County. Breezy west to northwest winds today as
onshore flow is enhanced with the incoming weak front. JBB

.Previous Discussion...High clouds associated with the upper level front are
passing through NorCal early this morning. The surface cold front
is presently on the north coast where a few showers are occurring
from Eureka northward to around Crescent City. Onshore flow has
increased across the region with breezy westerly winds in the
Delta and locally across the higher terrain. Temperatures are a
mixed bag early this morning with some areas quite a bit milder
than 24 hours ago due to wind and clouds while others are cooler.
Readings are mainly in the 30s and 40s in the mountains with 50s
to lower 60s in the Central Valley.

The cold front will be mainly dry as it pushes inland across the
interior of NorCal today, though a few showers will be possible
across mainly the higher terrain of Shasta County. The main
impacts from the system for the region will be to finally bring a
return of much cooler temperatures - generally 10-15 degrees
cooler today - and breezy northerly winds behind the front.

Another short-wave will move through the area Wednesday
maintaining the cooler temperatures and also spreading a chance of
showers further south into the northern Sierra.

By Thursday and Friday, the trough shifts east into the Rockies
while short-wave ridging moves overhead NorCal for a little milder
weather. We`ll also see stronger northerly winds developing,
particularly on Thursday when advisory level criteria may be
reached.

&&

.Extended Discussion (Saturday through Tuesday)

A trough of low pressure will settle over the region this weekend.
The Canadian model is more bullish with the precipitation while
the GFS has the trough tracking farther to the north. the latest
European model is starting to look more like the GFS but is deeper
on Sunday and Sunday night with the precipitation over the region.
Timing differences and differences in the strength of the systems
exist with all the models so for now have slight chance to chance
pops over most locations Saturday through Tuesday. Temperatures
will be cooler during this period with the potential for some snow
below major trans-sierra pass levels.

&&

.Aviation...

VFR conditions will continue the next 24 hours. Next system may bring
light showers to northern mtns late today. Gusty winds through
the delta and over the mountains with gusts around 25 kts in the
delta and 40 kts over ridges through tonight before dying
down to around 10 kts overnight.

&&

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

$$








000
FXUS66 KSTO 311050
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
350 AM PDT Tue Mar 31 2015

.Synopsis...
Cooler, but still above normal weather expected this week. Weak
weather systems may bring a few showers to the mountains today and
Wednesday. Another chance of precipitation arrives this weekend.

&&

.Discussion...
High clouds associated with the upper level front are passing
through NorCal early this morning. The surface cold front is
presently on the north coast where a few showers are occurring
from Eureka northward to around Crescent City. Onshore flow has
increased across the region with breezy westerly winds in the
Delta and locally across the higher terrain. Temperatures are a
mixed bag early this morning with some areas quite a bit milder
than 24 hours ago due to wind and clouds while others are cooler.
Readings are mainly in the 30s and 40s in the mountains with 50s
to lower 60s in the Central Valley.

The cold front will be mainly dry as it pushes inland across the
interior of NorCal today, though a few showers will be possible
across mainly the higher terrain of Shasta County. The main
impacts from the system for the region will be to finally bring a
return of much cooler temperatures - generally 10-15 degrees
cooler today - and breezy northerly winds behind the front.

Another short-wave will move through the area Wednesday
maintaining the cooler temperatures and also spreading a chance of
showers further south into the northern Sierra.

By Thursday and Friday, the trough shifts east into the Rockies
while short-wave ridging moves overhead NorCal for a little milder
weather. We`ll also see stronger northerly winds developing,
particularly on Thursday when advisory level criteria may be
reached.

&&

.Extended Discussion (Saturday through Tuesday)...
A trough of low pressure will settle over the region this weekend.
The Canadian model is more bullish with the precipitation while
the GFS has the trough tracking farther to the north. the latest
European model is starting to look more like the GFS but is deeper
on Sunday and Sunday night with the precipitation over the region.
Timing differences and differences in the strength of the systems
exist with all the models so for now have slight chance to chance
pops over most locations Saturday through Tuesday. Temperatures
will be cooler during this period with the potential for some snow
below major trans-sierra pass levels.

&&

.Aviation...
VFR conditions will continue the next 24 hours. Next system may
bring light showers to northern mtns late today. Gusty winds
through the delta and over the mountains with gusts around 30 kts
in the delta and 40 kts over ridges.

&&

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

&&

$$






000
FXUS66 KSTO 311050
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
350 AM PDT Tue Mar 31 2015

.Synopsis...
Cooler, but still above normal weather expected this week. Weak
weather systems may bring a few showers to the mountains today and
Wednesday. Another chance of precipitation arrives this weekend.

&&

.Discussion...
High clouds associated with the upper level front are passing
through NorCal early this morning. The surface cold front is
presently on the north coast where a few showers are occurring
from Eureka northward to around Crescent City. Onshore flow has
increased across the region with breezy westerly winds in the
Delta and locally across the higher terrain. Temperatures are a
mixed bag early this morning with some areas quite a bit milder
than 24 hours ago due to wind and clouds while others are cooler.
Readings are mainly in the 30s and 40s in the mountains with 50s
to lower 60s in the Central Valley.

The cold front will be mainly dry as it pushes inland across the
interior of NorCal today, though a few showers will be possible
across mainly the higher terrain of Shasta County. The main
impacts from the system for the region will be to finally bring a
return of much cooler temperatures - generally 10-15 degrees
cooler today - and breezy northerly winds behind the front.

Another short-wave will move through the area Wednesday
maintaining the cooler temperatures and also spreading a chance of
showers further south into the northern Sierra.

By Thursday and Friday, the trough shifts east into the Rockies
while short-wave ridging moves overhead NorCal for a little milder
weather. We`ll also see stronger northerly winds developing,
particularly on Thursday when advisory level criteria may be
reached.

&&

.Extended Discussion (Saturday through Tuesday)...
A trough of low pressure will settle over the region this weekend.
The Canadian model is more bullish with the precipitation while
the GFS has the trough tracking farther to the north. the latest
European model is starting to look more like the GFS but is deeper
on Sunday and Sunday night with the precipitation over the region.
Timing differences and differences in the strength of the systems
exist with all the models so for now have slight chance to chance
pops over most locations Saturday through Tuesday. Temperatures
will be cooler during this period with the potential for some snow
below major trans-sierra pass levels.

&&

.Aviation...
VFR conditions will continue the next 24 hours. Next system may
bring light showers to northern mtns late today. Gusty winds
through the delta and over the mountains with gusts around 30 kts
in the delta and 40 kts over ridges.

&&

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

&&

$$





000
FXUS66 KSTO 311050
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
350 AM PDT Tue Mar 31 2015

.Synopsis...
Cooler, but still above normal weather expected this week. Weak
weather systems may bring a few showers to the mountains today and
Wednesday. Another chance of precipitation arrives this weekend.

&&

.Discussion...
High clouds associated with the upper level front are passing
through NorCal early this morning. The surface cold front is
presently on the north coast where a few showers are occurring
from Eureka northward to around Crescent City. Onshore flow has
increased across the region with breezy westerly winds in the
Delta and locally across the higher terrain. Temperatures are a
mixed bag early this morning with some areas quite a bit milder
than 24 hours ago due to wind and clouds while others are cooler.
Readings are mainly in the 30s and 40s in the mountains with 50s
to lower 60s in the Central Valley.

The cold front will be mainly dry as it pushes inland across the
interior of NorCal today, though a few showers will be possible
across mainly the higher terrain of Shasta County. The main
impacts from the system for the region will be to finally bring a
return of much cooler temperatures - generally 10-15 degrees
cooler today - and breezy northerly winds behind the front.

Another short-wave will move through the area Wednesday
maintaining the cooler temperatures and also spreading a chance of
showers further south into the northern Sierra.

By Thursday and Friday, the trough shifts east into the Rockies
while short-wave ridging moves overhead NorCal for a little milder
weather. We`ll also see stronger northerly winds developing,
particularly on Thursday when advisory level criteria may be
reached.

&&

.Extended Discussion (Saturday through Tuesday)...
A trough of low pressure will settle over the region this weekend.
The Canadian model is more bullish with the precipitation while
the GFS has the trough tracking farther to the north. the latest
European model is starting to look more like the GFS but is deeper
on Sunday and Sunday night with the precipitation over the region.
Timing differences and differences in the strength of the systems
exist with all the models so for now have slight chance to chance
pops over most locations Saturday through Tuesday. Temperatures
will be cooler during this period with the potential for some snow
below major trans-sierra pass levels.

&&

.Aviation...
VFR conditions will continue the next 24 hours. Next system may
bring light showers to northern mtns late today. Gusty winds
through the delta and over the mountains with gusts around 30 kts
in the delta and 40 kts over ridges.

&&

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

&&

$$





000
FXUS66 KSTO 310429
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
929 PM PDT Mon Mar 30 2015

.Synopsis...
Cooler but still above normal weather expected this week. Weak
weather systems may bring a few intermittent showers to the
mountains Tuesday and Wednesday along with cooler temperatures.
Another chance of precipitation arrives next weekend.

&&

.Discussion...
A system along the coast is bringing high clouds and gusty winds
through the delta and over the ridges.

On Tuesday that weak system will pass by to the north and may
bring a few showers over parts of Shasta County. Areas to the south
will be remaining dry but much cooler by 8 to 15 degrees with the
greatest cooling occurring in the mountains. Northerly winds are
expected to develop during the day and should become breezy over
the north by late morning before impacting the southern areas.

Another shortwave will move through the area on Wednesday but the
greatest impact looks to be keeping temperatures cool over the
region. Some showers look possible over the mountain areas late in
the day and through the evening hours before any threat diminishes.

On Thursday with the system well east of us we will start to warm
a little. Breezy northerly winds will occur throughout the valley.
Some winds along the west side of the valley may reach wind
advisory criteria.

&&

.Extended Discussion (Friday through Monday)

High pressure remains in place Friday and could result in
continued breezy north to northeast winds. Longer range models
are suggesting a transition to a cooler and unsettled pattern
this weekend and early next week, with improving confidence. The
exact strength of this this system is still not certain, but the
potential for some showers and cooler temperatures is looking
higher. The ECMWF and GEM continue to be wetter than the GFS, and
bring the potential for a more extensive, widespread system
through early next week. Snow is even a possibility with this cool
system, especially if the ECMWF is on track. Will be watching to
see how this system evolves over the coming days. EK

&&

.Aviation...

VFR conditions will continue the next 24 hours. Next system may bring
light showers to northern mtns late tonight into Tue. Gusty winds
through the delta and over the mountains with gusts around 25 kts
in the delta and 40 kts over ridges.

&&

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

$$








000
FXUS66 KSTO 310429
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
929 PM PDT Mon Mar 30 2015

.Synopsis...
Cooler but still above normal weather expected this week. Weak
weather systems may bring a few intermittent showers to the
mountains Tuesday and Wednesday along with cooler temperatures.
Another chance of precipitation arrives next weekend.

&&

.Discussion...
A system along the coast is bringing high clouds and gusty winds
through the delta and over the ridges.

On Tuesday that weak system will pass by to the north and may
bring a few showers over parts of Shasta County. Areas to the south
will be remaining dry but much cooler by 8 to 15 degrees with the
greatest cooling occurring in the mountains. Northerly winds are
expected to develop during the day and should become breezy over
the north by late morning before impacting the southern areas.

Another shortwave will move through the area on Wednesday but the
greatest impact looks to be keeping temperatures cool over the
region. Some showers look possible over the mountain areas late in
the day and through the evening hours before any threat diminishes.

On Thursday with the system well east of us we will start to warm
a little. Breezy northerly winds will occur throughout the valley.
Some winds along the west side of the valley may reach wind
advisory criteria.

&&

.Extended Discussion (Friday through Monday)

High pressure remains in place Friday and could result in
continued breezy north to northeast winds. Longer range models
are suggesting a transition to a cooler and unsettled pattern
this weekend and early next week, with improving confidence. The
exact strength of this this system is still not certain, but the
potential for some showers and cooler temperatures is looking
higher. The ECMWF and GEM continue to be wetter than the GFS, and
bring the potential for a more extensive, widespread system
through early next week. Snow is even a possibility with this cool
system, especially if the ECMWF is on track. Will be watching to
see how this system evolves over the coming days. EK

&&

.Aviation...

VFR conditions will continue the next 24 hours. Next system may bring
light showers to northern mtns late tonight into Tue. Gusty winds
through the delta and over the mountains with gusts around 25 kts
in the delta and 40 kts over ridges.

&&

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

$$








000
FXUS66 KSTO 310429
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
929 PM PDT Mon Mar 30 2015

.Synopsis...
Cooler but still above normal weather expected this week. Weak
weather systems may bring a few intermittent showers to the
mountains Tuesday and Wednesday along with cooler temperatures.
Another chance of precipitation arrives next weekend.

&&

.Discussion...
A system along the coast is bringing high clouds and gusty winds
through the delta and over the ridges.

On Tuesday that weak system will pass by to the north and may
bring a few showers over parts of Shasta County. Areas to the south
will be remaining dry but much cooler by 8 to 15 degrees with the
greatest cooling occurring in the mountains. Northerly winds are
expected to develop during the day and should become breezy over
the north by late morning before impacting the southern areas.

Another shortwave will move through the area on Wednesday but the
greatest impact looks to be keeping temperatures cool over the
region. Some showers look possible over the mountain areas late in
the day and through the evening hours before any threat diminishes.

On Thursday with the system well east of us we will start to warm
a little. Breezy northerly winds will occur throughout the valley.
Some winds along the west side of the valley may reach wind
advisory criteria.

&&

.Extended Discussion (Friday through Monday)

High pressure remains in place Friday and could result in
continued breezy north to northeast winds. Longer range models
are suggesting a transition to a cooler and unsettled pattern
this weekend and early next week, with improving confidence. The
exact strength of this this system is still not certain, but the
potential for some showers and cooler temperatures is looking
higher. The ECMWF and GEM continue to be wetter than the GFS, and
bring the potential for a more extensive, widespread system
through early next week. Snow is even a possibility with this cool
system, especially if the ECMWF is on track. Will be watching to
see how this system evolves over the coming days. EK

&&

.Aviation...

VFR conditions will continue the next 24 hours. Next system may bring
light showers to northern mtns late tonight into Tue. Gusty winds
through the delta and over the mountains with gusts around 25 kts
in the delta and 40 kts over ridges.

&&

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

$$









000
FXUS66 KSTO 302244
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
344 PM PDT Mon Mar 30 2015

.Synopsis...
Cooler but still above normal weather expected this week. Weak
weather systems may bring a few intermittent showers to the
mountains Tuesday and Wednesday along with cooler temperatures.
Another chance of potentially more significant precipitation
arrives next weekend.

&&

.Discussion...
A very warm day today with record highs already set at Stockton
and Modesto by 3 pm.

City High(as of 3pm) Record High
Redding AP7986 (2002)
Red Bluff AP8188 (2002)
Downtown Sac8286 (1966)
Sac Exec AP8083 (2001)
Stockton AP8482 (1966)
Modesto AP8584 (1968)

Cooler weather arrives on Tuesday as a weak wave brushes to the
north. Highs will be much cooler than what we are seeing today, or
seen in recent days, dropping 8 to 14 degrees. They will still be
above normal levels, though. These temperatures will continue
through the week, with no more 80 degree Valley highs for the time
being.

While most of the dynamics will remain to the north, some light
rain could reach the northern mountains starting Tuesday morning
and continuing through the afternoon. Dry weather returns Tuesday
evening. The main effects in addition to cooler temperatures will
be some breezy northerly winds. .

A shortwave passes through late Wednesday and Wednesday night
bringing another chance for a few showers to the northern
mountains and northern Sierra. Week ridging and dry weather
returns Thursday. More breezy north winds are expected through
Wednesday and Thursday.

&&

.Extended Discussion (Friday through Monday)

High pressure remains in place Friday and could result in
continued breezy north to northeast winds. Longer range models
are suggesting a transition to a cooler and unsettled pattern
this weekend and early next week, with improving confidence. The
exact strength of this this system is still not certain, but the
potential for some showers and cooler temperatures is looking
higher. The ECMWF and GEM continue to be wetter than the GFS, and
bring the potential for a more extensive, widespread system
through early next week. Snow is even a possibility with this cool
system, especially if the ECMWF is on track. Will be watching to
see how this system evolves over the coming days. EK

&&

.Aviation...

VFR conditions will continue the next 24 hours. Generally light
winds this morning, increase from S to SW this afternoon. Next
system may bring light showers to northern mtns tonight into Tue.

&&

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

$$








000
FXUS66 KSTO 302244
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
344 PM PDT Mon Mar 30 2015

.Synopsis...
Cooler but still above normal weather expected this week. Weak
weather systems may bring a few intermittent showers to the
mountains Tuesday and Wednesday along with cooler temperatures.
Another chance of potentially more significant precipitation
arrives next weekend.

&&

.Discussion...
A very warm day today with record highs already set at Stockton
and Modesto by 3 pm.

City High(as of 3pm) Record High
Redding AP7986 (2002)
Red Bluff AP8188 (2002)
Downtown Sac8286 (1966)
Sac Exec AP8083 (2001)
Stockton AP8482 (1966)
Modesto AP8584 (1968)

Cooler weather arrives on Tuesday as a weak wave brushes to the
north. Highs will be much cooler than what we are seeing today, or
seen in recent days, dropping 8 to 14 degrees. They will still be
above normal levels, though. These temperatures will continue
through the week, with no more 80 degree Valley highs for the time
being.

While most of the dynamics will remain to the north, some light
rain could reach the northern mountains starting Tuesday morning
and continuing through the afternoon. Dry weather returns Tuesday
evening. The main effects in addition to cooler temperatures will
be some breezy northerly winds. .

A shortwave passes through late Wednesday and Wednesday night
bringing another chance for a few showers to the northern
mountains and northern Sierra. Week ridging and dry weather
returns Thursday. More breezy north winds are expected through
Wednesday and Thursday.

&&

.Extended Discussion (Friday through Monday)

High pressure remains in place Friday and could result in
continued breezy north to northeast winds. Longer range models
are suggesting a transition to a cooler and unsettled pattern
this weekend and early next week, with improving confidence. The
exact strength of this this system is still not certain, but the
potential for some showers and cooler temperatures is looking
higher. The ECMWF and GEM continue to be wetter than the GFS, and
bring the potential for a more extensive, widespread system
through early next week. Snow is even a possibility with this cool
system, especially if the ECMWF is on track. Will be watching to
see how this system evolves over the coming days. EK

&&

.Aviation...

VFR conditions will continue the next 24 hours. Generally light
winds this morning, increase from S to SW this afternoon. Next
system may bring light showers to northern mtns tonight into Tue.

&&

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

$$









000
FXUS66 KSTO 301613
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
913 AM PDT Mon Mar 30 2015

.Synopsis...
Warm and fairly dry weather will continue today. Weak weather systems
may bring a few intermittent showers to the mountains Tuesday and
Wednesday along with cooler temperatures. Another chance of
precipitation will be possible next weekend.

&&

.Discussion...
A mild start to the day today, with temperatures running 3 to 6degrees
warmer for the Delta, the southern and central Sacramento Valley.
Oroville was 64 degrees at 9 am. Downtown Sacramento had reached
62 degrees as of 9:00 am. As previously mentioned, some daily
record high temperatures could fall. Mostly sunny skies will
continue through the day, with light winds. No update needed.

Cooler weather arrives on Tuesday as a weak wave brushes to the north.
Highs will be much cooler than for today, or seen in recent days,
dropping 8 to 12 degrees. They will still be above normal levels,
though. While most of the dynamics will remain to the north, some
lilght rain could reach the northern mountains. EK

.Previous Discussion...

Clear skies across most of the region early this morning except
for areas of high clouds beginning to move across the northwest
corner of the state. Conditions are pretty similar to those of 24
hours ago with generally light winds and temperatures mainly in
the 30s and 40s in the mountain valleys and upper 40s to mid 50s
in the Central Valley.

One more day of record/near record warmth expected across the
interior of NorCal today. The upper ridge axis will begin to move
inland into the Rockies over the next 24 hours as a short-wave
trough approaches the PacNW. The warm airmass will remain over the
region today and more records will be in jeopardy. Below are the
record temperatures for today with the current forecast highs.

City Forecast High Record High

Redding AP8286 (2002)
Red Bluff AP8288 (2002)
Downtown Sac8486 (1966)
Sac Exec AP8283 (2001)
Stockton AP8482 (1966)
Modesto AP8584 (1968)

Significant cooling on the order of 10-15 degrees is expected
across the region Tuesday as the system moves into the PacNW. Most
of the region will remain dry, but the northern mountains may see
a few showers. Breezy northerly winds develop through the Central
Valley by the afternoon.

A weak trough is forecast to linger over the region Wednesday,
then another short-wave is forecast to clip the area late
Wednesday and Wednesday night bringing another chance for a few
showers to the northern mountains and northern Sierra. Weak high
pressure returns for Thursday.

&&

.Extended Discussion (Friday through Monday)

High pressure remains in place Friday and could result in
continued breezy north to northeast winds. Longer range models
are hinting at a transition to a cooler and unsettled pattern
this weekend and early next week. The ECMWF and GFS both show
decent spread in their ensembles, but all are suggesting a colder
and wetter system setting up for the west. The ECMWF and GEM are
in pretty good agreement with trough placement just offshore late
in the period, while the GFS`s trough is farther east. Right now,
we favored the ECMWF and GEM solution and increased precip chances
late in the period, especially next Monday night into Tuesday.
JClapp


&&

.Aviation...

VFR conditions will continue the next 24 hours. Generally light
winds this morning, increase from S to SW this afternoon. Next
system may bring light showers to northern mtns tonight into Tue.

&&

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

$$








000
FXUS66 KSTO 301613
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
913 AM PDT Mon Mar 30 2015

.Synopsis...
Warm and fairly dry weather will continue today. Weak weather systems
may bring a few intermittent showers to the mountains Tuesday and
Wednesday along with cooler temperatures. Another chance of
precipitation will be possible next weekend.

&&

.Discussion...
A mild start to the day today, with temperatures running 3 to 6degrees
warmer for the Delta, the southern and central Sacramento Valley.
Oroville was 64 degrees at 9 am. Downtown Sacramento had reached
62 degrees as of 9:00 am. As previously mentioned, some daily
record high temperatures could fall. Mostly sunny skies will
continue through the day, with light winds. No update needed.

Cooler weather arrives on Tuesday as a weak wave brushes to the north.
Highs will be much cooler than for today, or seen in recent days,
dropping 8 to 12 degrees. They will still be above normal levels,
though. While most of the dynamics will remain to the north, some
lilght rain could reach the northern mountains. EK

.Previous Discussion...

Clear skies across most of the region early this morning except
for areas of high clouds beginning to move across the northwest
corner of the state. Conditions are pretty similar to those of 24
hours ago with generally light winds and temperatures mainly in
the 30s and 40s in the mountain valleys and upper 40s to mid 50s
in the Central Valley.

One more day of record/near record warmth expected across the
interior of NorCal today. The upper ridge axis will begin to move
inland into the Rockies over the next 24 hours as a short-wave
trough approaches the PacNW. The warm airmass will remain over the
region today and more records will be in jeopardy. Below are the
record temperatures for today with the current forecast highs.

City Forecast High Record High

Redding AP8286 (2002)
Red Bluff AP8288 (2002)
Downtown Sac8486 (1966)
Sac Exec AP8283 (2001)
Stockton AP8482 (1966)
Modesto AP8584 (1968)

Significant cooling on the order of 10-15 degrees is expected
across the region Tuesday as the system moves into the PacNW. Most
of the region will remain dry, but the northern mountains may see
a few showers. Breezy northerly winds develop through the Central
Valley by the afternoon.

A weak trough is forecast to linger over the region Wednesday,
then another short-wave is forecast to clip the area late
Wednesday and Wednesday night bringing another chance for a few
showers to the northern mountains and northern Sierra. Weak high
pressure returns for Thursday.

&&

.Extended Discussion (Friday through Monday)

High pressure remains in place Friday and could result in
continued breezy north to northeast winds. Longer range models
are hinting at a transition to a cooler and unsettled pattern
this weekend and early next week. The ECMWF and GFS both show
decent spread in their ensembles, but all are suggesting a colder
and wetter system setting up for the west. The ECMWF and GEM are
in pretty good agreement with trough placement just offshore late
in the period, while the GFS`s trough is farther east. Right now,
we favored the ECMWF and GEM solution and increased precip chances
late in the period, especially next Monday night into Tuesday.
JClapp


&&

.Aviation...

VFR conditions will continue the next 24 hours. Generally light
winds this morning, increase from S to SW this afternoon. Next
system may bring light showers to northern mtns tonight into Tue.

&&

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

$$








000
FXUS66 KSTO 301613
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
913 AM PDT Mon Mar 30 2015

.Synopsis...
Warm and fairly dry weather will continue today. Weak weather systems
may bring a few intermittent showers to the mountains Tuesday and
Wednesday along with cooler temperatures. Another chance of
precipitation will be possible next weekend.

&&

.Discussion...
A mild start to the day today, with temperatures running 3 to 6degrees
warmer for the Delta, the southern and central Sacramento Valley.
Oroville was 64 degrees at 9 am. Downtown Sacramento had reached
62 degrees as of 9:00 am. As previously mentioned, some daily
record high temperatures could fall. Mostly sunny skies will
continue through the day, with light winds. No update needed.

Cooler weather arrives on Tuesday as a weak wave brushes to the north.
Highs will be much cooler than for today, or seen in recent days,
dropping 8 to 12 degrees. They will still be above normal levels,
though. While most of the dynamics will remain to the north, some
lilght rain could reach the northern mountains. EK

.Previous Discussion...

Clear skies across most of the region early this morning except
for areas of high clouds beginning to move across the northwest
corner of the state. Conditions are pretty similar to those of 24
hours ago with generally light winds and temperatures mainly in
the 30s and 40s in the mountain valleys and upper 40s to mid 50s
in the Central Valley.

One more day of record/near record warmth expected across the
interior of NorCal today. The upper ridge axis will begin to move
inland into the Rockies over the next 24 hours as a short-wave
trough approaches the PacNW. The warm airmass will remain over the
region today and more records will be in jeopardy. Below are the
record temperatures for today with the current forecast highs.

City Forecast High Record High

Redding AP8286 (2002)
Red Bluff AP8288 (2002)
Downtown Sac8486 (1966)
Sac Exec AP8283 (2001)
Stockton AP8482 (1966)
Modesto AP8584 (1968)

Significant cooling on the order of 10-15 degrees is expected
across the region Tuesday as the system moves into the PacNW. Most
of the region will remain dry, but the northern mountains may see
a few showers. Breezy northerly winds develop through the Central
Valley by the afternoon.

A weak trough is forecast to linger over the region Wednesday,
then another short-wave is forecast to clip the area late
Wednesday and Wednesday night bringing another chance for a few
showers to the northern mountains and northern Sierra. Weak high
pressure returns for Thursday.

&&

.Extended Discussion (Friday through Monday)

High pressure remains in place Friday and could result in
continued breezy north to northeast winds. Longer range models
are hinting at a transition to a cooler and unsettled pattern
this weekend and early next week. The ECMWF and GFS both show
decent spread in their ensembles, but all are suggesting a colder
and wetter system setting up for the west. The ECMWF and GEM are
in pretty good agreement with trough placement just offshore late
in the period, while the GFS`s trough is farther east. Right now,
we favored the ECMWF and GEM solution and increased precip chances
late in the period, especially next Monday night into Tuesday.
JClapp


&&

.Aviation...

VFR conditions will continue the next 24 hours. Generally light
winds this morning, increase from S to SW this afternoon. Next
system may bring light showers to northern mtns tonight into Tue.

&&

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

$$









000
FXUS66 KSTO 301126
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
426 AM PDT Mon Mar 30 2015

.Synopsis...
Warm and fairly dry weather will continue today. Weak weather systems
may bring a few intermittent showers to the mountains Tuesday and
Wednesday along with cooler temperatures. Another chance of
precipitation will be possible next weekend.

&&

.Discussion...
Clear skies across most of the region early this morning except
for areas of high clouds beginning to move across the northwest
corner of the state. Conditions are pretty similar to those of 24
hours ago with generally light winds and temperatures mainly in
the 30s and 40s in the mountain valleys and upper 40s to mid 50s
in the Central Valley.

One more day of record/near record warmth expected across the
interior of NorCal today. The upper ridge axis will begin to move
inland into the Rockies over the next 24 hours as a short-wave
trough approaches the PacNW. The warm airmass will remain over the
region today and more records will be in jeopardy. Below are the
record temperatures for today with the current forecast highs.

City Forecast High Record High

Redding AP8286 (2002)
Red Bluff AP8288 (2002)
Downtown Sac8486 (1966)
Sac Exec AP8283 (2001)
Stockton AP8482 (1966)
Modesto AP8584 (1968)

Significant cooling on the order of 10-15 degrees is expected
across the region Tuesday as the system moves into the PacNW. Most
of the region will remain dry, but the northern mountains may see
a few showers. Breezy northerly winds develop through the Central
Valley by the afternoon.

A weak trough is forecast to linger over the region Wednesday,
then another short-wave is forecast to clip the area late
Wednesday and Wednesday night bringing another chance for a few
showers to the northern mountains and northern Sierra. Weak high
pressure returns for Thursday.

&&

.Extended Discussion (Friday through Monday)...
High pressure remains in place Friday and could result in
continued breezy north to northeast winds. Longer range models are
hinting at a transition to a cooler and more unsettled pattern
this weekend and early next week. The ECMWF and GFS both show
decent spread in their ensembles, but all are suggesting a colder
and wetter system setting up for the west. The ECMWF and GEM are
in pretty good agreement with trough placement just offshore late
in the period, while the GFS`s trough is farther east. Right now,
we favored the ECMWF and GEM solution and increased precipitation
chances late in the period, especially next Monday night into
Tuesday. JClapp

&&

.Aviation...
VFR conds will cont the next 24 hours. Generally light winds this
morning, increase from S to SW this afternoon. Next system may
bring light showers to northern mtns tonight into Tue. JClapp

&&

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

&&

$$





000
FXUS66 KSTO 301126
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
426 AM PDT Mon Mar 30 2015

.Synopsis...
Warm and fairly dry weather will continue today. Weak weather systems
may bring a few intermittent showers to the mountains Tuesday and
Wednesday along with cooler temperatures. Another chance of
precipitation will be possible next weekend.

&&

.Discussion...
Clear skies across most of the region early this morning except
for areas of high clouds beginning to move across the northwest
corner of the state. Conditions are pretty similar to those of 24
hours ago with generally light winds and temperatures mainly in
the 30s and 40s in the mountain valleys and upper 40s to mid 50s
in the Central Valley.

One more day of record/near record warmth expected across the
interior of NorCal today. The upper ridge axis will begin to move
inland into the Rockies over the next 24 hours as a short-wave
trough approaches the PacNW. The warm airmass will remain over the
region today and more records will be in jeopardy. Below are the
record temperatures for today with the current forecast highs.

City Forecast High Record High

Redding AP8286 (2002)
Red Bluff AP8288 (2002)
Downtown Sac8486 (1966)
Sac Exec AP8283 (2001)
Stockton AP8482 (1966)
Modesto AP8584 (1968)

Significant cooling on the order of 10-15 degrees is expected
across the region Tuesday as the system moves into the PacNW. Most
of the region will remain dry, but the northern mountains may see
a few showers. Breezy northerly winds develop through the Central
Valley by the afternoon.

A weak trough is forecast to linger over the region Wednesday,
then another short-wave is forecast to clip the area late
Wednesday and Wednesday night bringing another chance for a few
showers to the northern mountains and northern Sierra. Weak high
pressure returns for Thursday.

&&

.Extended Discussion (Friday through Monday)...
High pressure remains in place Friday and could result in
continued breezy north to northeast winds. Longer range models are
hinting at a transition to a cooler and more unsettled pattern
this weekend and early next week. The ECMWF and GFS both show
decent spread in their ensembles, but all are suggesting a colder
and wetter system setting up for the west. The ECMWF and GEM are
in pretty good agreement with trough placement just offshore late
in the period, while the GFS`s trough is farther east. Right now,
we favored the ECMWF and GEM solution and increased precipitation
chances late in the period, especially next Monday night into
Tuesday. JClapp

&&

.Aviation...
VFR conds will cont the next 24 hours. Generally light winds this
morning, increase from S to SW this afternoon. Next system may
bring light showers to northern mtns tonight into Tue. JClapp

&&

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

&&

$$






000
FXUS66 KSTO 301126
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
426 AM PDT Mon Mar 30 2015

.Synopsis...
Warm and fairly dry weather will continue today. Weak weather systems
may bring a few intermittent showers to the mountains Tuesday and
Wednesday along with cooler temperatures. Another chance of
precipitation will be possible next weekend.

&&

.Discussion...
Clear skies across most of the region early this morning except
for areas of high clouds beginning to move across the northwest
corner of the state. Conditions are pretty similar to those of 24
hours ago with generally light winds and temperatures mainly in
the 30s and 40s in the mountain valleys and upper 40s to mid 50s
in the Central Valley.

One more day of record/near record warmth expected across the
interior of NorCal today. The upper ridge axis will begin to move
inland into the Rockies over the next 24 hours as a short-wave
trough approaches the PacNW. The warm airmass will remain over the
region today and more records will be in jeopardy. Below are the
record temperatures for today with the current forecast highs.

City Forecast High Record High

Redding AP8286 (2002)
Red Bluff AP8288 (2002)
Downtown Sac8486 (1966)
Sac Exec AP8283 (2001)
Stockton AP8482 (1966)
Modesto AP8584 (1968)

Significant cooling on the order of 10-15 degrees is expected
across the region Tuesday as the system moves into the PacNW. Most
of the region will remain dry, but the northern mountains may see
a few showers. Breezy northerly winds develop through the Central
Valley by the afternoon.

A weak trough is forecast to linger over the region Wednesday,
then another short-wave is forecast to clip the area late
Wednesday and Wednesday night bringing another chance for a few
showers to the northern mountains and northern Sierra. Weak high
pressure returns for Thursday.

&&

.Extended Discussion (Friday through Monday)...
High pressure remains in place Friday and could result in
continued breezy north to northeast winds. Longer range models are
hinting at a transition to a cooler and more unsettled pattern
this weekend and early next week. The ECMWF and GFS both show
decent spread in their ensembles, but all are suggesting a colder
and wetter system setting up for the west. The ECMWF and GEM are
in pretty good agreement with trough placement just offshore late
in the period, while the GFS`s trough is farther east. Right now,
we favored the ECMWF and GEM solution and increased precipitation
chances late in the period, especially next Monday night into
Tuesday. JClapp

&&

.Aviation...
VFR conds will cont the next 24 hours. Generally light winds this
morning, increase from S to SW this afternoon. Next system may
bring light showers to northern mtns tonight into Tue. JClapp

&&

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

&&

$$





000
FXUS66 KSTO 301126
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
426 AM PDT Mon Mar 30 2015

.Synopsis...
Warm and fairly dry weather will continue today. Weak weather systems
may bring a few intermittent showers to the mountains Tuesday and
Wednesday along with cooler temperatures. Another chance of
precipitation will be possible next weekend.

&&

.Discussion...
Clear skies across most of the region early this morning except
for areas of high clouds beginning to move across the northwest
corner of the state. Conditions are pretty similar to those of 24
hours ago with generally light winds and temperatures mainly in
the 30s and 40s in the mountain valleys and upper 40s to mid 50s
in the Central Valley.

One more day of record/near record warmth expected across the
interior of NorCal today. The upper ridge axis will begin to move
inland into the Rockies over the next 24 hours as a short-wave
trough approaches the PacNW. The warm airmass will remain over the
region today and more records will be in jeopardy. Below are the
record temperatures for today with the current forecast highs.

City Forecast High Record High

Redding AP8286 (2002)
Red Bluff AP8288 (2002)
Downtown Sac8486 (1966)
Sac Exec AP8283 (2001)
Stockton AP8482 (1966)
Modesto AP8584 (1968)

Significant cooling on the order of 10-15 degrees is expected
across the region Tuesday as the system moves into the PacNW. Most
of the region will remain dry, but the northern mountains may see
a few showers. Breezy northerly winds develop through the Central
Valley by the afternoon.

A weak trough is forecast to linger over the region Wednesday,
then another short-wave is forecast to clip the area late
Wednesday and Wednesday night bringing another chance for a few
showers to the northern mountains and northern Sierra. Weak high
pressure returns for Thursday.

&&

.Extended Discussion (Friday through Monday)...
High pressure remains in place Friday and could result in
continued breezy north to northeast winds. Longer range models are
hinting at a transition to a cooler and more unsettled pattern
this weekend and early next week. The ECMWF and GFS both show
decent spread in their ensembles, but all are suggesting a colder
and wetter system setting up for the west. The ECMWF and GEM are
in pretty good agreement with trough placement just offshore late
in the period, while the GFS`s trough is farther east. Right now,
we favored the ECMWF and GEM solution and increased precipitation
chances late in the period, especially next Monday night into
Tuesday. JClapp

&&

.Aviation...
VFR conds will cont the next 24 hours. Generally light winds this
morning, increase from S to SW this afternoon. Next system may
bring light showers to northern mtns tonight into Tue. JClapp

&&

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

&&

$$





000
FXUS66 KSTO 300437
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
935 PM PDT Sun Mar 29 2015

.Synopsis...
Warm and fairly dry weather will continue early this week. Weak
systems may bring a few intermittent showers to the northern
mountains Tuesday and Wednesday. Another chance of precipitation
possible next weekend.

&&

.Discussion...
Updated list below of records/ties for max temps for Mar 29th.
DTS sensor recorded 85.5 (which rounds to 86) after 6 pm.

City Today`s High    Previous Record High

Redding AP8885 (2002)
Red Bluff AP8886 (2002)
Downtown Sac8686 (2002)
Sac Exec AP8483 (2002)
Stockton AP8683 (2004)
Modesto AP8585 (2004)

More record warmth today as high pressure prevailed over Norcal. A
weak short wave passing just south of our CWA triggered some cumulus
and an area of showers/isolated storms just E of the Siernev Crest
this afternoon and into early evening. The activity was just outside
of our CWA along our Alpine/Tuolumne Co borders. This activity has
dissipated with sunset...and as the short wave moves slowly SEwd.
   JHM

The shortwave moves to the east on Monday and an approaching low
pressure system off the Pacific Northwest coast will gradually break
down the ridge and replace it with cyclonic flow aloft and up valley
flow. (Synoptic cooling is forecast to lower max temps some 2 to 8
degrees over the Nrn half of the CWA...while the Delta breeze cools
Solano Co about 5 degrees with 2 to 3 degrees of cooling in the
Sac/SCK areas. Near persistence or slight warming is expected over
the SErn portion of the CWA. Once again...some max temp records or
ties may occur at SAC (83 in 2001)/SCK (82 in 1966)/MOD (84 1968)
depending on the arrival of the cooling Delta Breeze which may not
be until after max heating in these areas. JHM)

On Tuesday that weak system will pass by to the north and may
bring a few showers over the far north end of the valley and
mountain areas north of I-80. Areas to the south will be
remaining dry but much cooler by 5 to 15 degrees with the greatest
cooling occurring in the mountains.

Another shortwave will move through the area on Wednesday but the
greatest impact looks to be keeping temperatures cool over the
region. Some showers look possible over the northern areas.

&&


.Extended Discussion (Thursday through Sunday)

High pressure will return Thursday into Friday and could result
in another period of breezy northerly winds. Longer range models
are hinting at a transition to a cooler and unsettled pattern next
weekend. The GFS and GEM are a bit more bullish with the initial
wave of precipitation than the ECMWF for next weekend. All are
suggesting a colder and wetter system setting up for the following
week. We`ll be paying close attention to model trends.

Dang


&&

.Aviation...

VFR SCT-BKN250 conditions will continue the next 24 hours. Generally
light north winds will become south Monday afternoon as Delta Breeze
and onshore flow increases during the afternoon/evening.

Dang


&&

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

$$










000
FXUS66 KSTO 300437
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
935 PM PDT Sun Mar 29 2015

.Synopsis...
Warm and fairly dry weather will continue early this week. Weak
systems may bring a few intermittent showers to the northern
mountains Tuesday and Wednesday. Another chance of precipitation
possible next weekend.

&&

.Discussion...
Updated list below of records/ties for max temps for Mar 29th.
DTS sensor recorded 85.5 (which rounds to 86) after 6 pm.

City Today`s High    Previous Record High

Redding AP8885 (2002)
Red Bluff AP8886 (2002)
Downtown Sac8686 (2002)
Sac Exec AP8483 (2002)
Stockton AP8683 (2004)
Modesto AP8585 (2004)

More record warmth today as high pressure prevailed over Norcal. A
weak short wave passing just south of our CWA triggered some cumulus
and an area of showers/isolated storms just E of the Siernev Crest
this afternoon and into early evening. The activity was just outside
of our CWA along our Alpine/Tuolumne Co borders. This activity has
dissipated with sunset...and as the short wave moves slowly SEwd.
   JHM

The shortwave moves to the east on Monday and an approaching low
pressure system off the Pacific Northwest coast will gradually break
down the ridge and replace it with cyclonic flow aloft and up valley
flow. (Synoptic cooling is forecast to lower max temps some 2 to 8
degrees over the Nrn half of the CWA...while the Delta breeze cools
Solano Co about 5 degrees with 2 to 3 degrees of cooling in the
Sac/SCK areas. Near persistence or slight warming is expected over
the SErn portion of the CWA. Once again...some max temp records or
ties may occur at SAC (83 in 2001)/SCK (82 in 1966)/MOD (84 1968)
depending on the arrival of the cooling Delta Breeze which may not
be until after max heating in these areas. JHM)

On Tuesday that weak system will pass by to the north and may
bring a few showers over the far north end of the valley and
mountain areas north of I-80. Areas to the south will be
remaining dry but much cooler by 5 to 15 degrees with the greatest
cooling occurring in the mountains.

Another shortwave will move through the area on Wednesday but the
greatest impact looks to be keeping temperatures cool over the
region. Some showers look possible over the northern areas.

&&


.Extended Discussion (Thursday through Sunday)

High pressure will return Thursday into Friday and could result
in another period of breezy northerly winds. Longer range models
are hinting at a transition to a cooler and unsettled pattern next
weekend. The GFS and GEM are a bit more bullish with the initial
wave of precipitation than the ECMWF for next weekend. All are
suggesting a colder and wetter system setting up for the following
week. We`ll be paying close attention to model trends.

Dang


&&

.Aviation...

VFR SCT-BKN250 conditions will continue the next 24 hours. Generally
light north winds will become south Monday afternoon as Delta Breeze
and onshore flow increases during the afternoon/evening.

Dang


&&

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

$$










000
FXUS66 KSTO 300437
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
935 PM PDT Sun Mar 29 2015

.Synopsis...
Warm and fairly dry weather will continue early this week. Weak
systems may bring a few intermittent showers to the northern
mountains Tuesday and Wednesday. Another chance of precipitation
possible next weekend.

&&

.Discussion...
Updated list below of records/ties for max temps for Mar 29th.
DTS sensor recorded 85.5 (which rounds to 86) after 6 pm.

City Today`s High    Previous Record High

Redding AP8885 (2002)
Red Bluff AP8886 (2002)
Downtown Sac8686 (2002)
Sac Exec AP8483 (2002)
Stockton AP8683 (2004)
Modesto AP8585 (2004)

More record warmth today as high pressure prevailed over Norcal. A
weak short wave passing just south of our CWA triggered some cumulus
and an area of showers/isolated storms just E of the Siernev Crest
this afternoon and into early evening. The activity was just outside
of our CWA along our Alpine/Tuolumne Co borders. This activity has
dissipated with sunset...and as the short wave moves slowly SEwd.
   JHM

The shortwave moves to the east on Monday and an approaching low
pressure system off the Pacific Northwest coast will gradually break
down the ridge and replace it with cyclonic flow aloft and up valley
flow. (Synoptic cooling is forecast to lower max temps some 2 to 8
degrees over the Nrn half of the CWA...while the Delta breeze cools
Solano Co about 5 degrees with 2 to 3 degrees of cooling in the
Sac/SCK areas. Near persistence or slight warming is expected over
the SErn portion of the CWA. Once again...some max temp records or
ties may occur at SAC (83 in 2001)/SCK (82 in 1966)/MOD (84 1968)
depending on the arrival of the cooling Delta Breeze which may not
be until after max heating in these areas. JHM)

On Tuesday that weak system will pass by to the north and may
bring a few showers over the far north end of the valley and
mountain areas north of I-80. Areas to the south will be
remaining dry but much cooler by 5 to 15 degrees with the greatest
cooling occurring in the mountains.

Another shortwave will move through the area on Wednesday but the
greatest impact looks to be keeping temperatures cool over the
region. Some showers look possible over the northern areas.

&&


.Extended Discussion (Thursday through Sunday)

High pressure will return Thursday into Friday and could result
in another period of breezy northerly winds. Longer range models
are hinting at a transition to a cooler and unsettled pattern next
weekend. The GFS and GEM are a bit more bullish with the initial
wave of precipitation than the ECMWF for next weekend. All are
suggesting a colder and wetter system setting up for the following
week. We`ll be paying close attention to model trends.

Dang


&&

.Aviation...

VFR SCT-BKN250 conditions will continue the next 24 hours. Generally
light north winds will become south Monday afternoon as Delta Breeze
and onshore flow increases during the afternoon/evening.

Dang


&&

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

$$











000
FXUS66 KSTO 292113
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
213 PM PDT Sun Mar 29 2015

.Synopsis...
Warm and fairly dry weather will continue early this week. Weak
systems may bring a few intermittent showers to the mountains
today into Wednesday. Another chance of precipitation possible
next weekend.

&&

.Discussion...
Temperatures today continue to warm and should top out in the low
to mid 80s for the valley and 60s to lower 70s in the mountains.
Some temperatures will come close while others will reach record
levels today. Below are some of the record temperatures for today
with the current forecasted highs.

City Forecast High Record High

Redding AP8585 (2002)
Red Bluff AP8586 (2002)
Downtown Sac8486 (2002)
Sac Exec AP8383 (2002)
Stockton AP8483 (2004)
Modesto AP8485 (2004)

A weak ridge is over the area today with a very weak shortwave
moving through central California today. The shortwave has moved
far enough inland with no signs of any showers popping up along the
crest so have removed any mention of them. The shortwave moves to
the east by Monday and an approaching low pressure system off the
Pacific Northwest coast will gradually break down the ridge and
replace it with cyclonic flow aloft and up valley flow.

On Tuesday that weak system will pass by to the north and may
bring a few showers over the far north end of the valley and
mountain areas north of I-80. Areas to the south will be
remaining dry but much cooler by 5 to 15 degrees with the greatest
cooling occurring in the mountains.

Another shortwave will move through the area on Wednesday but the
greatest impact looks to be keeping temperatures cool over the
region. Some showers look possible over the northern areas.

&&


.Extended Discussion (Thursday through Sunday)

High pressure will return Thursday into Friday and could result
in another period of breezy northerly winds. Longer range models
are hinting at a transition to a cooler and unsettled pattern next
weekend. The GFS and GEM are a bit more bullish with the initial
wave of precipitation than the ECMWF for next weekend. All are
suggesting a colder and wetter system setting up for the following
week. We`ll be paying close attention to model trends.

Dang


&&

.Aviation...

VFR conditions will continue the next 24 hours. Generally light
north winds will become south Monday afternoon.

Dang


&&

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

$$








000
FXUS66 KSTO 292113
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
213 PM PDT Sun Mar 29 2015

.Synopsis...
Warm and fairly dry weather will continue early this week. Weak
systems may bring a few intermittent showers to the mountains
today into Wednesday. Another chance of precipitation possible
next weekend.

&&

.Discussion...
Temperatures today continue to warm and should top out in the low
to mid 80s for the valley and 60s to lower 70s in the mountains.
Some temperatures will come close while others will reach record
levels today. Below are some of the record temperatures for today
with the current forecasted highs.

City Forecast High Record High

Redding AP8585 (2002)
Red Bluff AP8586 (2002)
Downtown Sac8486 (2002)
Sac Exec AP8383 (2002)
Stockton AP8483 (2004)
Modesto AP8485 (2004)

A weak ridge is over the area today with a very weak shortwave
moving through central California today. The shortwave has moved
far enough inland with no signs of any showers popping up along the
crest so have removed any mention of them. The shortwave moves to
the east by Monday and an approaching low pressure system off the
Pacific Northwest coast will gradually break down the ridge and
replace it with cyclonic flow aloft and up valley flow.

On Tuesday that weak system will pass by to the north and may
bring a few showers over the far north end of the valley and
mountain areas north of I-80. Areas to the south will be
remaining dry but much cooler by 5 to 15 degrees with the greatest
cooling occurring in the mountains.

Another shortwave will move through the area on Wednesday but the
greatest impact looks to be keeping temperatures cool over the
region. Some showers look possible over the northern areas.

&&


.Extended Discussion (Thursday through Sunday)

High pressure will return Thursday into Friday and could result
in another period of breezy northerly winds. Longer range models
are hinting at a transition to a cooler and unsettled pattern next
weekend. The GFS and GEM are a bit more bullish with the initial
wave of precipitation than the ECMWF for next weekend. All are
suggesting a colder and wetter system setting up for the following
week. We`ll be paying close attention to model trends.

Dang


&&

.Aviation...

VFR conditions will continue the next 24 hours. Generally light
north winds will become south Monday afternoon.

Dang


&&

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

$$








000
FXUS66 KSTO 291525
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
825 AM PDT Sun Mar 29 2015

.Synopsis...
Warm and fairly dry weather will continue early this week. Weak
systems may bring a few intermittent showers to the mountains
today into Wednesday. Another chance of precipitation possible
next weekend.

&&

.Discussion...
Cooler start to the day with temperatures running several degrees
below yesterdays readings at this hour. Northerly flow will
continue today but be much weaker with winds generally below 10
mph. temperatures today will warm into the low to mid 80s for the
valley and 60s to lower 70s in the mountains. Some temperatures
may come close or reach record levels today. Below are the record
temperatures for today with the current forecasted highs.

City Forecast High Record High

Redding AP8585 (2002)
Red Bluff AP8586 (2002)
Downtown Sac8486 (2002)
Sac Exec AP8383 (2002)
Stockton AP8483 (2004)
Modesto AP8485 (2004)

A weak ridge is over the area today with a very weak shortwave
moving through central California today. The models are trying to
indicate some showers near the crest from around Alpine County
southward as a result of this shortwave. The shortwave moves to
the east by Monday and an approaching low pressure system off the
Pacific Northwest coast will gradually break down the ridge and
replace it with cyclonic flow aloft.

On Tuesday that weak system will pass by to the north and may
bring a few showers over the far north end of the valley and
mountain areas north of I-80. Areas to the south will be
remaining dry but much cooler by 5 to 15 degrees with the greatest
cooling occurring in the mountains.

Another shortwave will move through the area on Wednesday but the
greatest impact looks to be keeping temperatures cool over the
region. Some showers look possible over the northern areas.

&&


.Extended Discussion (Thursday through Sunday)

High pressure will return Thursday into Friday and could result
in another period of breezy northerly winds. Longer range models
are hinting at a potentially stronger and colder system moving
through Northern California next weekend. There is still plenty of
model uncertainty with regards to timing and intensity of that
system, but we`ll pay close attention to model trends.

&&

.Aviation...

VFR conditions will continue the next 24 hours. Mostly northerly
winds below 10 kts.

&&

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

$$








000
FXUS66 KSTO 291525
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
825 AM PDT Sun Mar 29 2015

.Synopsis...
Warm and fairly dry weather will continue early this week. Weak
systems may bring a few intermittent showers to the mountains
today into Wednesday. Another chance of precipitation possible
next weekend.

&&

.Discussion...
Cooler start to the day with temperatures running several degrees
below yesterdays readings at this hour. Northerly flow will
continue today but be much weaker with winds generally below 10
mph. temperatures today will warm into the low to mid 80s for the
valley and 60s to lower 70s in the mountains. Some temperatures
may come close or reach record levels today. Below are the record
temperatures for today with the current forecasted highs.

City Forecast High Record High

Redding AP8585 (2002)
Red Bluff AP8586 (2002)
Downtown Sac8486 (2002)
Sac Exec AP8383 (2002)
Stockton AP8483 (2004)
Modesto AP8485 (2004)

A weak ridge is over the area today with a very weak shortwave
moving through central California today. The models are trying to
indicate some showers near the crest from around Alpine County
southward as a result of this shortwave. The shortwave moves to
the east by Monday and an approaching low pressure system off the
Pacific Northwest coast will gradually break down the ridge and
replace it with cyclonic flow aloft.

On Tuesday that weak system will pass by to the north and may
bring a few showers over the far north end of the valley and
mountain areas north of I-80. Areas to the south will be
remaining dry but much cooler by 5 to 15 degrees with the greatest
cooling occurring in the mountains.

Another shortwave will move through the area on Wednesday but the
greatest impact looks to be keeping temperatures cool over the
region. Some showers look possible over the northern areas.

&&


.Extended Discussion (Thursday through Sunday)

High pressure will return Thursday into Friday and could result
in another period of breezy northerly winds. Longer range models
are hinting at a potentially stronger and colder system moving
through Northern California next weekend. There is still plenty of
model uncertainty with regards to timing and intensity of that
system, but we`ll pay close attention to model trends.

&&

.Aviation...

VFR conditions will continue the next 24 hours. Mostly northerly
winds below 10 kts.

&&

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

$$









000
FXUS66 KSTO 291525
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
825 AM PDT Sun Mar 29 2015

.Synopsis...
Warm and fairly dry weather will continue early this week. Weak
systems may bring a few intermittent showers to the mountains
today into Wednesday. Another chance of precipitation possible
next weekend.

&&

.Discussion...
Cooler start to the day with temperatures running several degrees
below yesterdays readings at this hour. Northerly flow will
continue today but be much weaker with winds generally below 10
mph. temperatures today will warm into the low to mid 80s for the
valley and 60s to lower 70s in the mountains. Some temperatures
may come close or reach record levels today. Below are the record
temperatures for today with the current forecasted highs.

City Forecast High Record High

Redding AP8585 (2002)
Red Bluff AP8586 (2002)
Downtown Sac8486 (2002)
Sac Exec AP8383 (2002)
Stockton AP8483 (2004)
Modesto AP8485 (2004)

A weak ridge is over the area today with a very weak shortwave
moving through central California today. The models are trying to
indicate some showers near the crest from around Alpine County
southward as a result of this shortwave. The shortwave moves to
the east by Monday and an approaching low pressure system off the
Pacific Northwest coast will gradually break down the ridge and
replace it with cyclonic flow aloft.

On Tuesday that weak system will pass by to the north and may
bring a few showers over the far north end of the valley and
mountain areas north of I-80. Areas to the south will be
remaining dry but much cooler by 5 to 15 degrees with the greatest
cooling occurring in the mountains.

Another shortwave will move through the area on Wednesday but the
greatest impact looks to be keeping temperatures cool over the
region. Some showers look possible over the northern areas.

&&


.Extended Discussion (Thursday through Sunday)

High pressure will return Thursday into Friday and could result
in another period of breezy northerly winds. Longer range models
are hinting at a potentially stronger and colder system moving
through Northern California next weekend. There is still plenty of
model uncertainty with regards to timing and intensity of that
system, but we`ll pay close attention to model trends.

&&

.Aviation...

VFR conditions will continue the next 24 hours. Mostly northerly
winds below 10 kts.

&&

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

$$








000
FXUS66 KSTO 291525
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
825 AM PDT Sun Mar 29 2015

.Synopsis...
Warm and fairly dry weather will continue early this week. Weak
systems may bring a few intermittent showers to the mountains
today into Wednesday. Another chance of precipitation possible
next weekend.

&&

.Discussion...
Cooler start to the day with temperatures running several degrees
below yesterdays readings at this hour. Northerly flow will
continue today but be much weaker with winds generally below 10
mph. temperatures today will warm into the low to mid 80s for the
valley and 60s to lower 70s in the mountains. Some temperatures
may come close or reach record levels today. Below are the record
temperatures for today with the current forecasted highs.

City Forecast High Record High

Redding AP8585 (2002)
Red Bluff AP8586 (2002)
Downtown Sac8486 (2002)
Sac Exec AP8383 (2002)
Stockton AP8483 (2004)
Modesto AP8485 (2004)

A weak ridge is over the area today with a very weak shortwave
moving through central California today. The models are trying to
indicate some showers near the crest from around Alpine County
southward as a result of this shortwave. The shortwave moves to
the east by Monday and an approaching low pressure system off the
Pacific Northwest coast will gradually break down the ridge and
replace it with cyclonic flow aloft.

On Tuesday that weak system will pass by to the north and may
bring a few showers over the far north end of the valley and
mountain areas north of I-80. Areas to the south will be
remaining dry but much cooler by 5 to 15 degrees with the greatest
cooling occurring in the mountains.

Another shortwave will move through the area on Wednesday but the
greatest impact looks to be keeping temperatures cool over the
region. Some showers look possible over the northern areas.

&&


.Extended Discussion (Thursday through Sunday)

High pressure will return Thursday into Friday and could result
in another period of breezy northerly winds. Longer range models
are hinting at a potentially stronger and colder system moving
through Northern California next weekend. There is still plenty of
model uncertainty with regards to timing and intensity of that
system, but we`ll pay close attention to model trends.

&&

.Aviation...

VFR conditions will continue the next 24 hours. Mostly northerly
winds below 10 kts.

&&

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

$$









000
FXUS66 KSTO 291525
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
825 AM PDT Sun Mar 29 2015

.Synopsis...
Warm and fairly dry weather will continue early this week. Weak
systems may bring a few intermittent showers to the mountains
today into Wednesday. Another chance of precipitation possible
next weekend.

&&

.Discussion...
Cooler start to the day with temperatures running several degrees
below yesterdays readings at this hour. Northerly flow will
continue today but be much weaker with winds generally below 10
mph. temperatures today will warm into the low to mid 80s for the
valley and 60s to lower 70s in the mountains. Some temperatures
may come close or reach record levels today. Below are the record
temperatures for today with the current forecasted highs.

City Forecast High Record High

Redding AP8585 (2002)
Red Bluff AP8586 (2002)
Downtown Sac8486 (2002)
Sac Exec AP8383 (2002)
Stockton AP8483 (2004)
Modesto AP8485 (2004)

A weak ridge is over the area today with a very weak shortwave
moving through central California today. The models are trying to
indicate some showers near the crest from around Alpine County
southward as a result of this shortwave. The shortwave moves to
the east by Monday and an approaching low pressure system off the
Pacific Northwest coast will gradually break down the ridge and
replace it with cyclonic flow aloft.

On Tuesday that weak system will pass by to the north and may
bring a few showers over the far north end of the valley and
mountain areas north of I-80. Areas to the south will be
remaining dry but much cooler by 5 to 15 degrees with the greatest
cooling occurring in the mountains.

Another shortwave will move through the area on Wednesday but the
greatest impact looks to be keeping temperatures cool over the
region. Some showers look possible over the northern areas.

&&


.Extended Discussion (Thursday through Sunday)

High pressure will return Thursday into Friday and could result
in another period of breezy northerly winds. Longer range models
are hinting at a potentially stronger and colder system moving
through Northern California next weekend. There is still plenty of
model uncertainty with regards to timing and intensity of that
system, but we`ll pay close attention to model trends.

&&

.Aviation...

VFR conditions will continue the next 24 hours. Mostly northerly
winds below 10 kts.

&&

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

$$








000
FXUS66 KSTO 291525
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
825 AM PDT Sun Mar 29 2015

.Synopsis...
Warm and fairly dry weather will continue early this week. Weak
systems may bring a few intermittent showers to the mountains
today into Wednesday. Another chance of precipitation possible
next weekend.

&&

.Discussion...
Cooler start to the day with temperatures running several degrees
below yesterdays readings at this hour. Northerly flow will
continue today but be much weaker with winds generally below 10
mph. temperatures today will warm into the low to mid 80s for the
valley and 60s to lower 70s in the mountains. Some temperatures
may come close or reach record levels today. Below are the record
temperatures for today with the current forecasted highs.

City Forecast High Record High

Redding AP8585 (2002)
Red Bluff AP8586 (2002)
Downtown Sac8486 (2002)
Sac Exec AP8383 (2002)
Stockton AP8483 (2004)
Modesto AP8485 (2004)

A weak ridge is over the area today with a very weak shortwave
moving through central California today. The models are trying to
indicate some showers near the crest from around Alpine County
southward as a result of this shortwave. The shortwave moves to
the east by Monday and an approaching low pressure system off the
Pacific Northwest coast will gradually break down the ridge and
replace it with cyclonic flow aloft.

On Tuesday that weak system will pass by to the north and may
bring a few showers over the far north end of the valley and
mountain areas north of I-80. Areas to the south will be
remaining dry but much cooler by 5 to 15 degrees with the greatest
cooling occurring in the mountains.

Another shortwave will move through the area on Wednesday but the
greatest impact looks to be keeping temperatures cool over the
region. Some showers look possible over the northern areas.

&&


.Extended Discussion (Thursday through Sunday)

High pressure will return Thursday into Friday and could result
in another period of breezy northerly winds. Longer range models
are hinting at a potentially stronger and colder system moving
through Northern California next weekend. There is still plenty of
model uncertainty with regards to timing and intensity of that
system, but we`ll pay close attention to model trends.

&&

.Aviation...

VFR conditions will continue the next 24 hours. Mostly northerly
winds below 10 kts.

&&

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

$$








000
FXUS66 KSTO 291106
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
406 AM PDT Sun Mar 29 2015

.Synopsis...
Warm and fairly dry weather will continue early this week. Weak
systems may bring a few intermittent showers to the mountains
today into Wednesday. Another chance of precipitation possible
next weekend.

&&

.Discussion...
Weak ridging over most of NorCal will nudge temperatures up again
today. Daytime highs will be about 10-20 degrees above normal with
valley highs in the low to mid 80s and mountain/foothill highs in the
60s/70s. Some records could be tied or broken today:

City Forecast High Record High

Redding AP8585 (2002)
Red Bluff AP8586 (2002)
Downtown Sac8486 (2002)
Sac Exec AP8383 (2002)
Stockton AP8483 (2004)
Modesto AP8485 (2004)

Besides the very warm daytime highs, there is still a slight
chance of afternoon mountain showers over the Sierra Crest today
(south of Tahoe). A weak wave will move across Central CA this
afternoon and should add some instability over the crest, but
moisture may be limited with precipitable water (PW) values about
a third of an inch or less.

On Monday temperatures will remain well above normal as ridging persists.
In fact, additional records could be tied or broken for Sacramento
Exec. Airport, Stockton and Modesto Airports. However, for the
northern part of our CWA, there will be slight cooling as a trough
approaches the Pacific NW by late afternoon.

By Tuesday that weak trough will pass by to the north and may bring
a few showers over the far north end of the valley and mountain
areas north of I-80. Areas to the south will remain dry but much
cooler by 5 to 15 degrees with the greatest cooling occurring in
the mountains. Daytime highs will be much closer to seasonal norms
on Wednesday with an additional cooling of a few more degrees
as that trough continues to track eastward. JBB

&&


.Extended Discussion (Thursday through Sunday)

High pressure will return Thursday into Friday and could result
in another period of breezy northerly winds. Longer range models
are hinting at a potentially stronger and colder system moving
through Northern California next weekend. There is still plenty of
model uncertainty with regards to timing and intensity of that
system, but we`ll pay close attention to model trends.

&&

.Aviation...

VFR conditions will continue the next 24 hours. Mostly northerly
winds below 10 kts.

&&

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

$$








000
FXUS66 KSTO 291106
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
406 AM PDT Sun Mar 29 2015

.Synopsis...
Warm and fairly dry weather will continue early this week. Weak
systems may bring a few intermittent showers to the mountains
today into Wednesday. Another chance of precipitation possible
next weekend.

&&

.Discussion...
Weak ridging over most of NorCal will nudge temperatures up again
today. Daytime highs will be about 10-20 degrees above normal with
valley highs in the low to mid 80s and mountain/foothill highs in the
60s/70s. Some records could be tied or broken today:

City Forecast High Record High

Redding AP8585 (2002)
Red Bluff AP8586 (2002)
Downtown Sac8486 (2002)
Sac Exec AP8383 (2002)
Stockton AP8483 (2004)
Modesto AP8485 (2004)

Besides the very warm daytime highs, there is still a slight
chance of afternoon mountain showers over the Sierra Crest today
(south of Tahoe). A weak wave will move across Central CA this
afternoon and should add some instability over the crest, but
moisture may be limited with precipitable water (PW) values about
a third of an inch or less.

On Monday temperatures will remain well above normal as ridging persists.
In fact, additional records could be tied or broken for Sacramento
Exec. Airport, Stockton and Modesto Airports. However, for the
northern part of our CWA, there will be slight cooling as a trough
approaches the Pacific NW by late afternoon.

By Tuesday that weak trough will pass by to the north and may bring
a few showers over the far north end of the valley and mountain
areas north of I-80. Areas to the south will remain dry but much
cooler by 5 to 15 degrees with the greatest cooling occurring in
the mountains. Daytime highs will be much closer to seasonal norms
on Wednesday with an additional cooling of a few more degrees
as that trough continues to track eastward. JBB

&&


.Extended Discussion (Thursday through Sunday)

High pressure will return Thursday into Friday and could result
in another period of breezy northerly winds. Longer range models
are hinting at a potentially stronger and colder system moving
through Northern California next weekend. There is still plenty of
model uncertainty with regards to timing and intensity of that
system, but we`ll pay close attention to model trends.

&&

.Aviation...

VFR conditions will continue the next 24 hours. Mostly northerly
winds below 10 kts.

&&

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

$$









000
FXUS66 KSTO 291106
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
406 AM PDT Sun Mar 29 2015

.Synopsis...
Warm and fairly dry weather will continue early this week. Weak
systems may bring a few intermittent showers to the mountains
today into Wednesday. Another chance of precipitation possible
next weekend.

&&

.Discussion...
Weak ridging over most of NorCal will nudge temperatures up again
today. Daytime highs will be about 10-20 degrees above normal with
valley highs in the low to mid 80s and mountain/foothill highs in the
60s/70s. Some records could be tied or broken today:

City Forecast High Record High

Redding AP8585 (2002)
Red Bluff AP8586 (2002)
Downtown Sac8486 (2002)
Sac Exec AP8383 (2002)
Stockton AP8483 (2004)
Modesto AP8485 (2004)

Besides the very warm daytime highs, there is still a slight
chance of afternoon mountain showers over the Sierra Crest today
(south of Tahoe). A weak wave will move across Central CA this
afternoon and should add some instability over the crest, but
moisture may be limited with precipitable water (PW) values about
a third of an inch or less.

On Monday temperatures will remain well above normal as ridging persists.
In fact, additional records could be tied or broken for Sacramento
Exec. Airport, Stockton and Modesto Airports. However, for the
northern part of our CWA, there will be slight cooling as a trough
approaches the Pacific NW by late afternoon.

By Tuesday that weak trough will pass by to the north and may bring
a few showers over the far north end of the valley and mountain
areas north of I-80. Areas to the south will remain dry but much
cooler by 5 to 15 degrees with the greatest cooling occurring in
the mountains. Daytime highs will be much closer to seasonal norms
on Wednesday with an additional cooling of a few more degrees
as that trough continues to track eastward. JBB

&&


.Extended Discussion (Thursday through Sunday)

High pressure will return Thursday into Friday and could result
in another period of breezy northerly winds. Longer range models
are hinting at a potentially stronger and colder system moving
through Northern California next weekend. There is still plenty of
model uncertainty with regards to timing and intensity of that
system, but we`ll pay close attention to model trends.

&&

.Aviation...

VFR conditions will continue the next 24 hours. Mostly northerly
winds below 10 kts.

&&

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

$$








000
FXUS66 KSTO 290454
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
950 PM PDT Sat Mar 28 2015

.Synopsis...
Mainly warm and dry weather will continue into next week for most
of the region. Weak systems may bring a few showers to the
mountains this Sunday into early next week.

&&

.Discussion...
Although max temps were mostly cooler over Norcal today (except in
the Siernev and in the areas that benefited from adiabatic warming
due to Nly winds i.e. Lake Co...West side of Sac Vly...and Solano Co
due to adiabatic warming off the Vaca Mtns) a max of 84 resulted in
records at SAC...and ties at DTS and SCK. The previous records for
the date at these locations took a little dip from a couple of days
ago.

A couple of warm days remain ahead for Sun/Mon with (near) records
possible on Sun and mainly over the Srn Sac/Nrn SJV sites on Mon.
The weak wave dropping over the Srn part of the CWA may trigger a
shower or two over the far SErn corner of the CWA around Alpine Co
on Sun. Otherwise dry wx ahead until a chance of showers far Nrn
zones on Tue. A very dry first quarter to 2015 places some of the
sites in the top 5 driest which we will hi-lite in future
graphics.    JHM


.Previous Discussion...

As a weak ridge builds over the area on Sunday a very weak
shortwave will move through the southern CWA area. The models are
trying to indicate some showers near the crest from around Alpine
County southward on Sunday as a result of this shortwave. The
shortwave moves to the east by Monday and an approaching low
pressure system off the Pacific Northwest coast will gradually
break down the ridge and replace it with cyclonic flow aloft.

On Tuesday that weak system will pass by to the north and may
bring a few showers over the far north end of the valley and
mountain areas north of I-80. Areas to the south will be
remaining dry but much cooler by 5 to 15 degrees with the greatest
cooling occurring in the mountains.

&&


.Extended Discussion (Wednesday through Saturday)

A secondary weak wave will pass through Northern California
Wednesday into Wednesday night. The latest model runs are a little
bit wetter than previous ones, but keep any sort of precipitation
mainly along the Shasta County mountains and southern Cascades.
High pressure will return Thursday into Friday and could result in
another period of breezy north winds.

Longer range models are hinting at a potentially stronger and
colder system moving through Northern California next weekend.
There is still plenty of model uncertainty with regards to timing
and intensity of that system, but we`ll pay close attention to
model trends.

Dang


&&

.Aviation...

VFR SKC conditions will continue the next 24 hours. Mostly Northerly
winds below 10 kts.

&&

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

$$






000
FXUS66 KSTO 290454
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
950 PM PDT Sat Mar 28 2015

.Synopsis...
Mainly warm and dry weather will continue into next week for most
of the region. Weak systems may bring a few showers to the
mountains this Sunday into early next week.

&&

.Discussion...
Although max temps were mostly cooler over Norcal today (except in
the Siernev and in the areas that benefited from adiabatic warming
due to Nly winds i.e. Lake Co...West side of Sac Vly...and Solano Co
due to adiabatic warming off the Vaca Mtns) a max of 84 resulted in
records at SAC...and ties at DTS and SCK. The previous records for
the date at these locations took a little dip from a couple of days
ago.

A couple of warm days remain ahead for Sun/Mon with (near) records
possible on Sun and mainly over the Srn Sac/Nrn SJV sites on Mon.
The weak wave dropping over the Srn part of the CWA may trigger a
shower or two over the far SErn corner of the CWA around Alpine Co
on Sun. Otherwise dry wx ahead until a chance of showers far Nrn
zones on Tue. A very dry first quarter to 2015 places some of the
sites in the top 5 driest which we will hi-lite in future
graphics.    JHM


.Previous Discussion...

As a weak ridge builds over the area on Sunday a very weak
shortwave will move through the southern CWA area. The models are
trying to indicate some showers near the crest from around Alpine
County southward on Sunday as a result of this shortwave. The
shortwave moves to the east by Monday and an approaching low
pressure system off the Pacific Northwest coast will gradually
break down the ridge and replace it with cyclonic flow aloft.

On Tuesday that weak system will pass by to the north and may
bring a few showers over the far north end of the valley and
mountain areas north of I-80. Areas to the south will be
remaining dry but much cooler by 5 to 15 degrees with the greatest
cooling occurring in the mountains.

&&


.Extended Discussion (Wednesday through Saturday)

A secondary weak wave will pass through Northern California
Wednesday into Wednesday night. The latest model runs are a little
bit wetter than previous ones, but keep any sort of precipitation
mainly along the Shasta County mountains and southern Cascades.
High pressure will return Thursday into Friday and could result in
another period of breezy north winds.

Longer range models are hinting at a potentially stronger and
colder system moving through Northern California next weekend.
There is still plenty of model uncertainty with regards to timing
and intensity of that system, but we`ll pay close attention to
model trends.

Dang


&&

.Aviation...

VFR SKC conditions will continue the next 24 hours. Mostly Northerly
winds below 10 kts.

&&

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

$$






000
FXUS66 KSTO 290454
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
950 PM PDT Sat Mar 28 2015

.Synopsis...
Mainly warm and dry weather will continue into next week for most
of the region. Weak systems may bring a few showers to the
mountains this Sunday into early next week.

&&

.Discussion...
Although max temps were mostly cooler over Norcal today (except in
the Siernev and in the areas that benefited from adiabatic warming
due to Nly winds i.e. Lake Co...West side of Sac Vly...and Solano Co
due to adiabatic warming off the Vaca Mtns) a max of 84 resulted in
records at SAC...and ties at DTS and SCK. The previous records for
the date at these locations took a little dip from a couple of days
ago.

A couple of warm days remain ahead for Sun/Mon with (near) records
possible on Sun and mainly over the Srn Sac/Nrn SJV sites on Mon.
The weak wave dropping over the Srn part of the CWA may trigger a
shower or two over the far SErn corner of the CWA around Alpine Co
on Sun. Otherwise dry wx ahead until a chance of showers far Nrn
zones on Tue. A very dry first quarter to 2015 places some of the
sites in the top 5 driest which we will hi-lite in future
graphics.    JHM


.Previous Discussion...

As a weak ridge builds over the area on Sunday a very weak
shortwave will move through the southern CWA area. The models are
trying to indicate some showers near the crest from around Alpine
County southward on Sunday as a result of this shortwave. The
shortwave moves to the east by Monday and an approaching low
pressure system off the Pacific Northwest coast will gradually
break down the ridge and replace it with cyclonic flow aloft.

On Tuesday that weak system will pass by to the north and may
bring a few showers over the far north end of the valley and
mountain areas north of I-80. Areas to the south will be
remaining dry but much cooler by 5 to 15 degrees with the greatest
cooling occurring in the mountains.

&&


.Extended Discussion (Wednesday through Saturday)

A secondary weak wave will pass through Northern California
Wednesday into Wednesday night. The latest model runs are a little
bit wetter than previous ones, but keep any sort of precipitation
mainly along the Shasta County mountains and southern Cascades.
High pressure will return Thursday into Friday and could result in
another period of breezy north winds.

Longer range models are hinting at a potentially stronger and
colder system moving through Northern California next weekend.
There is still plenty of model uncertainty with regards to timing
and intensity of that system, but we`ll pay close attention to
model trends.

Dang


&&

.Aviation...

VFR SKC conditions will continue the next 24 hours. Mostly Northerly
winds below 10 kts.

&&

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

$$







000
FXUS66 KSTO 282109
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
209 PM PDT Sat Mar 28 2015

.Synopsis...
Mainly warm and dry weather will continue into next week for most
of the region. Weak systems may bring a few showers to the
mountains this Sunday into early next week.

&&

.Discussion...
A couple of weak waves are moving through the northern part of
the state today. One south of Sacramento and another one pushing
through the far northern part of the state. Both are dry and only
producing some high clouds. The waves will continue to push south
and east this evening. Surface high pressure building in behind
the northern wave has resulted in some gusty winds for parts of
the valley. The winds will subside this evening.

As a weak ridge builds over the area on Sunday a very weak
shortwave will move through the southern CWA area. The models are
trying to indicate some showers near the crest from around Alpine
County southward on Sunday as a result of this shortwave. The
shortwave moves to the east by Monday and an approaching low
pressure system off the Pacific Northwest coast will gradually
break down the ridge and replace it with cyclonic flow aloft.

On Tuesday that weak system will pass by to the north and may
bring a few showers over the far north end of the valley and
mountain areas north of I-80. Areas to the south will be
remaining dry but much cooler by 5 to 15 degrees with the greatest
cooling occurring in the mountains.

&&


.Extended Discussion (Wednesday through Saturday)

A secondary weak wave will pass through Northern California
Wednesday into Wednesday night. The latest model runs are a little
bit wetter than previous ones, but keep any sort of precipitation
mainly along the Shasta County mountains and southern Cascades.
High pressure will return Thursday into Friday and could result in
another period of breezy north winds.

Longer range models are hinting at a potentially stronger and
colder system moving through Northern California next weekend.
There is still plenty of model uncertainty with regards to timing
and intensity of that system, but we`ll pay close attention to
model trends.

Dang


&&

.Aviation...

VFR conditions will continue the next 24 hours. Northerly winds
10-15 kt across the Valley will weaken to below 10 kt by this
evening.

Dang


&&

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

$$









000
FXUS66 KSTO 282109
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
209 PM PDT Sat Mar 28 2015

.Synopsis...
Mainly warm and dry weather will continue into next week for most
of the region. Weak systems may bring a few showers to the
mountains this Sunday into early next week.

&&

.Discussion...
A couple of weak waves are moving through the northern part of
the state today. One south of Sacramento and another one pushing
through the far northern part of the state. Both are dry and only
producing some high clouds. The waves will continue to push south
and east this evening. Surface high pressure building in behind
the northern wave has resulted in some gusty winds for parts of
the valley. The winds will subside this evening.

As a weak ridge builds over the area on Sunday a very weak
shortwave will move through the southern CWA area. The models are
trying to indicate some showers near the crest from around Alpine
County southward on Sunday as a result of this shortwave. The
shortwave moves to the east by Monday and an approaching low
pressure system off the Pacific Northwest coast will gradually
break down the ridge and replace it with cyclonic flow aloft.

On Tuesday that weak system will pass by to the north and may
bring a few showers over the far north end of the valley and
mountain areas north of I-80. Areas to the south will be
remaining dry but much cooler by 5 to 15 degrees with the greatest
cooling occurring in the mountains.

&&


.Extended Discussion (Wednesday through Saturday)

A secondary weak wave will pass through Northern California
Wednesday into Wednesday night. The latest model runs are a little
bit wetter than previous ones, but keep any sort of precipitation
mainly along the Shasta County mountains and southern Cascades.
High pressure will return Thursday into Friday and could result in
another period of breezy north winds.

Longer range models are hinting at a potentially stronger and
colder system moving through Northern California next weekend.
There is still plenty of model uncertainty with regards to timing
and intensity of that system, but we`ll pay close attention to
model trends.

Dang


&&

.Aviation...

VFR conditions will continue the next 24 hours. Northerly winds
10-15 kt across the Valley will weaken to below 10 kt by this
evening.

Dang


&&

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

$$









000
FXUS66 KSTO 282109
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
209 PM PDT Sat Mar 28 2015

.Synopsis...
Mainly warm and dry weather will continue into next week for most
of the region. Weak systems may bring a few showers to the
mountains this Sunday into early next week.

&&

.Discussion...
A couple of weak waves are moving through the northern part of
the state today. One south of Sacramento and another one pushing
through the far northern part of the state. Both are dry and only
producing some high clouds. The waves will continue to push south
and east this evening. Surface high pressure building in behind
the northern wave has resulted in some gusty winds for parts of
the valley. The winds will subside this evening.

As a weak ridge builds over the area on Sunday a very weak
shortwave will move through the southern CWA area. The models are
trying to indicate some showers near the crest from around Alpine
County southward on Sunday as a result of this shortwave. The
shortwave moves to the east by Monday and an approaching low
pressure system off the Pacific Northwest coast will gradually
break down the ridge and replace it with cyclonic flow aloft.

On Tuesday that weak system will pass by to the north and may
bring a few showers over the far north end of the valley and
mountain areas north of I-80. Areas to the south will be
remaining dry but much cooler by 5 to 15 degrees with the greatest
cooling occurring in the mountains.

&&


.Extended Discussion (Wednesday through Saturday)

A secondary weak wave will pass through Northern California
Wednesday into Wednesday night. The latest model runs are a little
bit wetter than previous ones, but keep any sort of precipitation
mainly along the Shasta County mountains and southern Cascades.
High pressure will return Thursday into Friday and could result in
another period of breezy north winds.

Longer range models are hinting at a potentially stronger and
colder system moving through Northern California next weekend.
There is still plenty of model uncertainty with regards to timing
and intensity of that system, but we`ll pay close attention to
model trends.

Dang


&&

.Aviation...

VFR conditions will continue the next 24 hours. Northerly winds
10-15 kt across the Valley will weaken to below 10 kt by this
evening.

Dang


&&

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

$$








000
FXUS66 KSTO 282109
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
209 PM PDT Sat Mar 28 2015

.Synopsis...
Mainly warm and dry weather will continue into next week for most
of the region. Weak systems may bring a few showers to the
mountains this Sunday into early next week.

&&

.Discussion...
A couple of weak waves are moving through the northern part of
the state today. One south of Sacramento and another one pushing
through the far northern part of the state. Both are dry and only
producing some high clouds. The waves will continue to push south
and east this evening. Surface high pressure building in behind
the northern wave has resulted in some gusty winds for parts of
the valley. The winds will subside this evening.

As a weak ridge builds over the area on Sunday a very weak
shortwave will move through the southern CWA area. The models are
trying to indicate some showers near the crest from around Alpine
County southward on Sunday as a result of this shortwave. The
shortwave moves to the east by Monday and an approaching low
pressure system off the Pacific Northwest coast will gradually
break down the ridge and replace it with cyclonic flow aloft.

On Tuesday that weak system will pass by to the north and may
bring a few showers over the far north end of the valley and
mountain areas north of I-80. Areas to the south will be
remaining dry but much cooler by 5 to 15 degrees with the greatest
cooling occurring in the mountains.

&&


.Extended Discussion (Wednesday through Saturday)

A secondary weak wave will pass through Northern California
Wednesday into Wednesday night. The latest model runs are a little
bit wetter than previous ones, but keep any sort of precipitation
mainly along the Shasta County mountains and southern Cascades.
High pressure will return Thursday into Friday and could result in
another period of breezy north winds.

Longer range models are hinting at a potentially stronger and
colder system moving through Northern California next weekend.
There is still plenty of model uncertainty with regards to timing
and intensity of that system, but we`ll pay close attention to
model trends.

Dang


&&

.Aviation...

VFR conditions will continue the next 24 hours. Northerly winds
10-15 kt across the Valley will weaken to below 10 kt by this
evening.

Dang


&&

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

$$








000
FXUS66 KSTO 281626
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
926 AM PDT Sat Mar 28 2015

.Synopsis...
Mainly warm and dry weather will continue into next week for most
of the region. Weak systems may bring a few showers to the
mountains this Sunday into early next week.

&&

.Discussion...
A weak wave is moving through the southern part of the CWA today
and is producing some high clouds over the Sacramento area. The
wave will continue to push south and east during the day. Surface
high pressure building in behind that wave will result in
northerly winds today with local gusts up to around 25 mph over
the north and west side of the valley. Temperatures should cool
slightly over yesterdays highs but still look to warm up to around
80 degrees for most places today to the mid 80s for some warmer
spots over the north end of the valley. Currently the north end of
the valley is running a couple of degrees warmer while the
southern end is around 5 degrees cooler.

A weak ridge will be over the area Sunday and Monday with
temperatures not too much different than today`s highs. On Tuesday
a weak system will pass by to the north and may bring a few
showers over Shasta County with areas to the south remaining dry
and cooler.

&&


.Extended Discussion (Wednesday through Saturday)

Broad weak upper trough continues over the region Wednesday
beneath the larger scale ridge along the west coast. Looks like
precipitation chances will be mainly limited to areas near the
Oregon border and temperatures will be close to normal. Ridging
returns late in the week for a gradual warm-up.

&&

.Aviation...

VFR conditions next 24 hours. Northerly surface winds with gusts
up to 25kts in Valley. Some cumulus development over the mountains
in the afternoon today especially over the the Sierra. There is a
slight chance of showers around Yosemite and to the south.


&&

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

$$








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