ca discuss
Office: EKA
FXUS66 KEKA 261322 CCA
AFDEKA
AREA FORECAST DISCUSSION...CORRECTED
National Weather Service Eureka CA
522 AM PST Wed Nov 26 2025
Corrected to add Synopsis.
.SYNOPSIS...High pressure will promote mild and dry weather today,
with temperatures warming into the upper 60s across interior
valleys. A weakening cold front is expected to bring increased
cloudiness and chances for light rain primarily to Del Norte and
northern Humboldt counties on Thanksgiving Day. A cooling trend
follows for the weekend with dry conditions and a return of
widespread interior freezing temperatures. Additionally, a
building swell is expected to bring hazardous surf conditions by
late Sunday.
&&
.DISCUSSION...Ridging will continue to build and strengthen over the
area today, promoting mild weather conditions with a drying and
warming trend. Dry offshore flow, especially at night, will scour
out some of the low-level clouds near the coast, which should lead
to more afternoon sunshine and nighttime conditions capable of
producing frost. High temperatures are forecast with highs in the
upper 60s in the warmest interior valleys. Any areas that do have
fog development overnight will likely be slow to clear and may
have high temperatures that are lower, leading to lower than usual
forecast confidence.
A subtle shift in the weather pattern is expected for tonight and
Thursday (Thanksgiving Day). High pressure begins to shift
eastward as a shortwave trough and its associated surface low move
toward the PacNW. A weakening cold front crossing the area will
bring light rain and sprinkles for Thanksgiving Day, for Del Norte
and Northern Humboldt counties, with most rainfall totals under a
tenth of an inch and a vast majority of models suggesting under
0.20" over 24 hours. Elsewhere, increasing cloudiness with mostly
dry conditions are expected.
Looking ahead for Friday and through the weekend, the general
consensus between ensemble and deterministic models shows an upper-
level trough dropping southward while an upper level ridge builds in
the Gulf of Alaska. There is, however, high uncertainty in the
position of this upper-level trough, with models showing variable
solutions, especially over the weekend. The ECMWF, GFS ensemble
means and clusters show similar solutions with the upper trough
dropping south over land and becoming positively tilted.
This solution typically leads to dry and colder weather, leading to
additional inland freezing temperatures this weekend. Only ~20% of
the cluster mean are showing widespread precipitation, while the
~80% suggest dry weather conditions.
&&
.AVIATION...(06z TAFs)...VFR conditions prevail at all terminal
forecast (TAFs), with high clouds streaming across the area and
light offshore flow. Short-term model guidance suggests LIFR
visibility and ceiling redeveloping again late tonight at UKI. There
is a low potential (10% chance) for shallow fog redeveloping again
at UKI after 10Z, with clear to partly cloudy skies late tonight. A
shallow marine layer return along the coast this evening and tonight
as a cold front approaches, resulting in MVFR/IFR ceilings at the
coastal terminals. /ZVS
&&
.MARINE...Relatively calm conditions with light to gentle breezes
and seas up to 5 feet. Wind shift to southerly north of Cape
Mendocino this afternoon as a weak frontal boundary approaches.
Southerly winds increasing to around 10 to 15 kt across the northern
outer waters late tonight into Thursday. Northerly winds redeveloped
Thursday afternoon in the wake of the front, before strengthen on
Friday. Models suggests the strongest winds south of Cape Mendocino,
with gusts up to 25 kts. For the weekend, northerly winds expanded
northward with gusts up to around 30 kts across the outer waters on
Sunday.
A forerunner mid-period WNW swell around 8 to 12 feet at 12 seconds
build in on Thursday. The swell is expected to arrive late Friday
night. This look to be around 5 to 8 feet at 14 seconds. Wind waves
around 7 to 10 feet at 8 seconds expected on Sunday. /ZVS
&&
.BEACH HAZARDS...A larger NW swell will move through the
waters Sunday evening through Monday, resulting in building surf
along the beaches and increasing the potential of sneaker waves.
Breaking waves will increase rapidly Sunday evening, reaching as
14 to 19 feet by Sunday evening along the northwest facing
beaches. Sneaker waves are a unique hazard, with many minutes
between waves. Pay attention and stay above the high water line
and any wet sand to stay safe. If the ground is wet, waves have
surged there recently. Stay safe and never turn your back on the
ocean! A potentially larger swell is then forecast to move in late
Sunday through Monday./ZVS
&&
.EKA WATCHES/WARNINGS/ADVISORIES...
CA...
Frost Advisory until 9 AM PST this morning for CAZ103-
106>108-110-111-113-115.
NORTHWEST CALIFORNIA COASTAL WATERS...
None.
&&
$$
NOTE: The full forecast discussion is now regularly issued between
10 am/pm and 1 pm/am. Additional updates will be issued as needed.
Visit us at https://www.weather.gov/eureka
Follow us on Facebook and Twitter at:
https://www.facebook.com/NWSEureka
https://www.twitter.com/NWSEureka
For forecast zone information
see the forecast zone map online:
https://www.weather.gov/images/eka/zonemap.png
Office: HNX
FXUS66 KHNX 260843
AFDHNX
Area Forecast Discussion
National Weather Service Hanford CA
1243 AM PST Wed Nov 26 2025
&&
.KEY MESSAGES...
1. Dense Fog Advisory issued for the San Joaquin Valley valid
through 1 PM Thursday due to persistent chances for fog each
night and morning through that timeframe.
2. Temperatures near to just below season averages through the
week.
3. Indications for a low pressure system over the western US to
end the month, though uncertainty remains for exact location and
impacts for central California.
&&
.DISCUSSION...
Latest model ensembles are in a strong agreement that the ridge
of high pressure is continuing to move onshore today into
tomorrow. The moving of this ridge has helped the past two
nights to not be completely fogged in despite the colder air
flowing in from the north at the higher levels combined with
the subsidence inversion common with ridges. Temperatures will
improve today as the cloud heights are much higher which will
favor heating. There is a 35 to 60 percent chance of high
temperatures of at least 60 degrees today for most Valley
locations but there is a 85 to almost 100 percent chance in the
southern Valley near Bakersfield and the Sierra Nevada
foothills.
However, ensembles continue to diverge as to the timing and
location of the next trough to move in over the Thanksgiving
weekend. The ensembles do agree it would be more of an inside
slider coming in over the Basin but the disagreement over
location and timing leads to high uncertainty about the impacts
of this storm to be persistent. The NBM continues to go drier
with this system as the flow affiliated with it is more from
continental British Canada and not from the Gulf of Alaska.
Sunday has the best chance of any precipitation with this system
but even the Valley has a 15 to 25 percent chance of any
accumulation of rain. Snow also is not looking favorable as the
NBM only gives Lodgepole and Tuolumne Meadows a 25 percent
chance of an inch of snow or more.
&&
.AVIATION...
IFR to MVFR ceilings and visibilities will persist in most
Valley locations through 18Z Wednesday. After 18Z, conditions
will improve especially after 20Z. However, MVFR to IFR
conditions return around 06Z Thursday for the overnight hours.
&&
.AIR QUALITY ISSUES...
On Wednesday November 26 2025, Fireplace/Wood Stove Burning
Status is: No Burning Unless Registered in Fresno, Kern, Kings,
Madera, and Tulare Counties. Burning Discouraged in Merced
County and Kern (Greater Frazier Park Area) and Sequoia National
Park and Forest.
&&
.CERTAINTY...
The level of certainty for days 1 and 2 is high.
The level of certainty for days 3 through 7 is medium.
Certainty levels include low...medium...and high. Please visit
www.weather.gov/hnx/certainty.html for additional information
and/or to provide feedback.
&&
.HNX WATCHES/WARNINGS/ADVISORIES...
Dense Fog Advisory until 1 PM PST Thursday for CAZ301>303-
305>307-309>312-314-315.
&&
$$
JPK
weather.gov/hanford
Office: LOX
FXUS66 KLOX 261738
AFDLOX
Area Forecast Discussion
National Weather Service Los Angeles/Oxnard CA
938 AM PST Wed Nov 26 2025
.SYNOPSIS...26/921 AM.
It will be dry through at least Saturday and likely well into next
week. Well above normal temperatures are expected today and
Thanksgiving Day before cooling develops over the weekend as an
upper low approaches the area.
&&
.SHORT TERM (TDY-FRI)...26/938 AM.
***UPDATE***
Offshore gradients have overachieved today reaching over 6mb which
exceeded even the strongest ensemble member by a solid 1mb. While
this is impressive, the resulting winds have been about as
expected as there is very little upper support to create stronger
winds at the surface. Wind advisories are in effect for some of
the valleys and the Santa Lucias but even in those areas wind
gusts are mostly under 35 mph.
It's going to be a very warm day across the area. Some areas south
of Pt Conception are already close to 80 degrees at 930am. Could
see a few areas in the mid 80s by this afternoon but overall highs
in the mid 70s to low 80s are expected.
Looks like a stellar Thanksgiving Day for SoCal. Some high clouds
are expected so skies won't be clear but temperatures still well
above normal.
***From Previous Discussion***
Chamber of Commerce day on tap today. 6 to 7 mb of offshore flow
from both the N and E will generate low end advisory level gusts
in the usual Santa Ana wind prone areas. The offshore flow will
keep the marine layer away and skies will be sunny. A weak ridge
is overhead along with 583 dam hgts. These hier than normal hgts,
offshore flow and ample sunshine will all combine to bring 2 to 4
degrees of warming to the area. Max temps will rise to the mid 70s
and lower 80s across the csts and vlys. These max temps are 8 to
12 degrees above normal.
The ridge flattens out on Thanksgiving and will allow a large
amount of mid and high level clouds into the area making it a
mostly cloudy day. Offshore flow will continue but it will be
weaker than today and advisory level gusts are not forecast. Hgts
fall to 578 dam. The falling hgts, increased cloudiness and
weaker offshore flow will team up to lower max temps by 4 to 8
degrees ( a switch to warming north flow will make the Paso Robles
area the exception with 3 to 5 degrees of warming expected.
Despite the cooling max temps will end up 4 to 8 degrees above
normal with most cst/vly max temps in the 70s.
Weak troffing sets up over the area on Friday. The high clouds
will move off to the east and it will be a mostly sunny day. The
offshore flow weakens to near neutral and this will bring 3 to 6
degrees of cooling to the csts and vlys despite the added
sunshine. The added sunshine will bring several degrees of warming
to interior areas.
.LONG TERM (SAT-TUE)...26/1235 AM.
All mdls and ensembles are now converging on a dry solution for
the weekend. Saturday's forecast is now totally dry as dry NW flow
aloft will prevail. There will likely be a coastal marine layer. 2
to 4 degrees of cooling from better onshore flow to the east and
lower hgts will bring most cst/vly max temps into the mid 60s to
lower 70s.
There is a slim chc (20 percent) for some light rain over LA
county on Sunday as a minimum of ensemble members bring an inside
slider ear enough to the west to pick up some moisture. The much
more likely outcome will be a dry inside slider with partly cloudy
skies. Falling hgts and an increase in clouds will cool temps an
additional 2 to 4 degrees. This will bring max temps down to 3 to
6 degrees blo normal.
North winds will set up behind the inside slider, but right now it
does not look like much of an event.
Pretty dull weather slated for Mon and Tue with a weak ridge on
Monday and an approaching trof on Tue. Weak offshore flow should
keep the low clouds away, although if the trof arrives a little
early there may be some morning coastal stratus on Tuesday. Look
for 2 to 3 degrees of warming on Monday with the ridge and little
change on Tuesday.
The mdls are not in good agreement but do hint at a period of
unsettled weather in the Wed-Fri days 8-10 time period.
&&
.AVIATION...26/1722Z.
Around 1626Z at KLAX, there was no marine layer. There was a weak
sfc based inversion with a top near 600 ft and a temperature of
21 C.
Overall, high confidence in 18Z TAF Package. There is a 30% chance
for V/LIFR conditions after 14Z Thursday at KPRB. Otherwise, VFR
conditions are expected.
KLAX...High confidence in TAF. VFR conditions with no significant
east wind component expected thru fcst pd.
KBUR...High confidence in TAF. VFR conditions are expected.
&&
.MARINE...26/746 AM.
Conditions will will remain relatively mild through Thanksgiving.
However, Localized gusty offshore winds will affect the nearshore
waters from Cayucos to Morro Bay and from Point Mugu to Topanga
Beach at times through Thursday morning. Winds could gusts to 25
kt.
Winds and seas will likely (60% chance) increase to SCA levels
once again across the Outer Waters as early as Thursday night or
Friday. Nearshore along the Central Coast and across the Santa
Barbara Channel, winds will increase Saturday afternoon and
evening, but chances for widespread SCA conditions are low.
There is quite a bit of uncertainty for this weekend, but
there is a moderate to high chance of widespread SCA conditions,
including nearshore. Seas will likely increase to around 10 to 12
feet across the outer waters, and 4 to 6 feet inside the Southern
California Bight. There is a low chance of widespread Gale Force
winds this weekend.
&&
.LOX WATCHES/WARNINGS/ADVISORIES...
CA...Wind Advisory remains in effect until noon PST today for
zones 88-358-369-371-372-374-375. (See LAXNPWLOX).
PZ...NONE.
&&
$$
PUBLIC...MW/Rorke
AVIATION...Black
MARINE...Lund/Black
SYNOPSIS...MW
weather.gov/losangeles
Experimental Graphical Hazardous Weather Outlook at:
https://www.weather.gov/erh/ghwo?wfo=lox
FXUS66 KLOX 261752
AFDLOX
Area Forecast Discussion...UPDATED
National Weather Service Los Angeles/Oxnard CA
952 AM PST Wed Nov 26 2025
.SYNOPSIS...26/921 AM.
It will be dry through at least Saturday and likely well into next
week. Well above normal temperatures are expected today and
Thanksgiving Day before cooling develops over the weekend as an
upper low approaches the area.
&&
.SHORT TERM (TDY-FRI)...26/938 AM.
***UPDATE***
Offshore gradients have overachieved today reaching over 6mb which
exceeded even the strongest ensemble member by a solid 1mb. While
this is impressive, the resulting winds have been about as
expected as there is very little upper support to create stronger
winds at the surface. Wind advisories are in effect for some of
the valleys and the Santa Lucias but even in those areas wind
gusts are mostly under 35 mph.
It's going to be a very warm day across the area. Some areas south
of Pt Conception are already close to 80 degrees at 930am. Could
see a few areas in the mid 80s by this afternoon but overall highs
in the mid 70s to low 80s are expected.
Looks like a stellar Thanksgiving Day for SoCal. Some high clouds
are expected so skies won't be clear but temperatures still well
above normal.
***From Previous Discussion***
Chamber of Commerce day on tap today. 6 to 7 mb of offshore flow
from both the N and E will generate low end advisory level gusts
in the usual Santa Ana wind prone areas. The offshore flow will
keep the marine layer away and skies will be sunny. A weak ridge
is overhead along with 583 dam hgts. These hier than normal hgts,
offshore flow and ample sunshine will all combine to bring 2 to 4
degrees of warming to the area. Max temps will rise to the mid 70s
and lower 80s across the csts and vlys. These max temps are 8 to
12 degrees above normal.
The ridge flattens out on Thanksgiving and will allow a large
amount of mid and high level clouds into the area making it a
mostly cloudy day. Offshore flow will continue but it will be
weaker than today and advisory level gusts are not forecast. Hgts
fall to 578 dam. The falling hgts, increased cloudiness and
weaker offshore flow will team up to lower max temps by 4 to 8
degrees ( a switch to warming north flow will make the Paso Robles
area the exception with 3 to 5 degrees of warming expected.
Despite the cooling max temps will end up 4 to 8 degrees above
normal with most cst/vly max temps in the 70s.
Weak troffing sets up over the area on Friday. The high clouds
will move off to the east and it will be a mostly sunny day. The
offshore flow weakens to near neutral and this will bring 3 to 6
degrees of cooling to the csts and vlys despite the added
sunshine. The added sunshine will bring several degrees of warming
to interior areas.
.LONG TERM (SAT-TUE)...26/1235 AM.
All mdls and ensembles are now converging on a dry solution for
the weekend. Saturday's forecast is now totally dry as dry NW flow
aloft will prevail. There will likely be a coastal marine layer. 2
to 4 degrees of cooling from better onshore flow to the east and
lower hgts will bring most cst/vly max temps into the mid 60s to
lower 70s.
There is a slim chc (20 percent) for some light rain over LA
county on Sunday as a minimum of ensemble members bring an inside
slider ear enough to the west to pick up some moisture. The much
more likely outcome will be a dry inside slider with partly cloudy
skies. Falling hgts and an increase in clouds will cool temps an
additional 2 to 4 degrees. This will bring max temps down to 3 to
6 degrees blo normal.
North winds will set up behind the inside slider, but right now it
does not look like much of an event.
Pretty dull weather slated for Mon and Tue with a weak ridge on
Monday and an approaching trof on Tue. Weak offshore flow should
keep the low clouds away, although if the trof arrives a little
early there may be some morning coastal stratus on Tuesday. Look
for 2 to 3 degrees of warming on Monday with the ridge and little
change on Tuesday.
The mdls are not in good agreement but do hint at a period of
unsettled weather in the Wed-Fri days 8-10 time period.
&&
.AVIATION...26/1751Z.
Around 1626Z at KLAX, there was no marine layer. There was a weak
sfc based inversion with a top near 600 ft and a temperature of
21 C.
Overall, high confidence in 18Z TAF Package. There is a 30% chance
for V/LIFR conditions after 14Z Thursday at KPRB. Otherwise, VFR
conditions are expected.
KLAX...High confidence in TAF. VFR conditions with no significant
east wind component expected thru fcst pd.
KBUR...High confidence in TAF. VFR conditions are expected.
&&
.MARINE...26/746 AM.
Conditions will will remain relatively mild through Thanksgiving.
However, Localized gusty offshore winds will affect the nearshore
waters from Cayucos to Morro Bay and from Point Mugu to Topanga
Beach at times through Thursday morning. Winds could gusts to 25
kt.
Winds and seas will likely (60% chance) increase to SCA levels
once again across the Outer Waters as early as Thursday night or
Friday. Nearshore along the Central Coast and across the Santa
Barbara Channel, winds will increase Saturday afternoon and
evening, but chances for widespread SCA conditions are low.
There is quite a bit of uncertainty for this weekend, but
there is a moderate to high chance of widespread SCA conditions,
including nearshore. Seas will likely increase to around 10 to 12
feet across the outer waters, and 4 to 6 feet inside the Southern
California Bight. There is a low chance of widespread Gale Force
winds this weekend.
&&
.LOX WATCHES/WARNINGS/ADVISORIES...
CA...Wind Advisory remains in effect until noon PST today for
zones 88-358-369-371-372-374-375. (See LAXNPWLOX).
PZ...NONE.
&&
$$
PUBLIC...MW/Rorke
AVIATION...Black
MARINE...Lund/Black
SYNOPSIS...MW
weather.gov/losangeles
Experimental Graphical Hazardous Weather Outlook at:
https://www.weather.gov/erh/ghwo?wfo=lox
Office: STO
FXUS66 KSTO 252102
AFDSTO
Area Forecast Discussion
National Weather Service Sacramento CA
102 PM PST Tue Nov 25 2025
.KEY MESSAGES...
- Dry conditions prevail this week, with periods of morning
Valley and adjacent foothills fog
- Seasonable temperatures and dry weather favored for
Thanksgiving Day
- Decreasing chances for precipitation but breezy winds expected
this weekend
&&
.DISCUSSION...
...Today-Friday...
GOES-WEST imagery shows lingering patchy fog and low stratus at
the time of this writing again Tuesday morning. Visibility will
continue to improve through the afternoon with a similar round of
fog expected across the Delta, Central Valley, and adjacent
foothills Wednesday morning. Current guidance has the denser
portion of fog existing north of Interstate 80, along Interstate 5
with a 50-70% chance of visibilities less than a half-mile.
Outside of the morning fog, seasonable high temperatures with
periods of offshore winds are expected to continue through the
week.
...This Weekend - Early Next Week...
Minimal impacts continue to be main forecast in the extended with
seasonable temperatures and breezy winds. Latest ensemble
guidance has the trough not as deep into the southwest, lowering
our already light precipitation chances for this weekend.
Currently, Sunday into Monday will the breeziest period of with
gusts up to 30 in the Valley and over the mountains. We will
continue to monitor for any changes to this system, so be sure to
check back for updates and for local forecast information at
weather.gov/sto.
&&
.AVIATION...
VFR/MVFR conditions through about 08z, then IFR/LIFR expected in
FG/BR across the Delta, Sacramento, & northern San Joaquin Valleys
through 19z Wednesday. Light and variable winds generally less
than 12 kts across interior NorCal for the next 24 hours.
&&
.STO WATCHES/WARNINGS/ADVISORIES...
Dense Fog Advisory from midnight tonight to 11 AM PST Wednesday
for Carquinez Strait and Delta-Central Sacramento Valley-
Northern San Joaquin Valley-Southern Sacramento Valley.
&&
$$
Office: SGX
FXUS66 KSGX 261643
AFDSGX
Area Forecast Discussion
National Weather Service San Diego CA
843 AM PST Wed Nov 26 2025
.SYNOPSIS...
High pressure aloft and offshore flow will bring additional
warming of a few to around 5 degrees today. Northeast to east
winds along and below the coastal slopes of the mountains will
gust to 30 to 40 mph today. Thanksgiving will have mid and high
clouds, weaker winds, with high temperatures for the coast and
valleys a few to around 5 degrees cooler. Cooling will spread
inland on Friday and Saturday. A low pressure system from the
north will bring additional cooling on Sunday and Sunday night
along with a chance of showers. Then drier and a little warmer
for Monday and Tuesday.
&&
.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...
.Morning Update...
Clear skies will continue as north and east winds gust near 30-40+
MPH across the mountains and passes of the coastal facing slopes.
Weaker offshore flow will prevail later today into Thursday
morning. The weather continues to look quiet for much of the
Thanksgiving holiday weekend. Will continue to keep an eye on the
forecast for the low chance of light showers over the region by
this coming Sunday.
.Previous Discussion (300 AM Wednesday)...
.SHORT TERM (Today through Friday)...
High pressure aloft and offshore flow will bring additional
warming of a few to around 5 degrees today with high temperatures
for the valleys and inland coastal areas as much as 10 to 15
degrees above average. High temperatures for today will range from
the lower to mid 70s near the coast to the lower to mid 80s for
the valleys and inland Orange County with the lower deserts around
80. Early this morning, east to northeast winds along and below
the coastal slopes of the mountains are gusting to 35 to 45 mph
around the Cajon Pass and 25 to 35 mph elsewhere.
A weakening low pressure system from the west will bring mid and
high clouds for late tonight into Thursday evening. The humidity
will still be lower inland on Thanksgiving with cooling for the
coast and valleys of a few to around 5 degrees. The cooling will
continue to spread inland on Friday, but with fewer high clouds.
High temperatures on Friday will range from the mid to upper 60s
near the coast to the lower to mid 70s for the valleys and inland
Orange County with the lower deserts in the upper 70s to around
80.
&&
.LONG TERM (Saturday through Tuesday)...
A low pressure system moving across the Pacific toward the West
Coast on Friday will then move toward the south during the
weekend, remaining well to the west of Baja on Sunday, centered
along 130 West longitude. A second low pressure system will move
southward during the weekend through the western states on a more
inland track.
However, it may track just far enough to the west to entrain some
Pacific moisture, bringing a chance of showers to southwestern
California around Sunday afternoon and night with the chance of
measurable precipitation 25 to 35 percent. The chance for one-half
inch or more of rainfall or liquid-equivalent in the mountains is
around 10 percent. The snow level will fall from around 6500 to
7000 feet on Sunday to 6000 feet on Sunday night.
Saturday and Sunday will be cooler with Sunday high temperatures
mostly in the 60s for the coast and valleys with the lower deserts
in the lower 70s. Then drier and a little warmer for Monday and
Tuesday.
&&
.AVIATION...
261630Z...Coasts...VFR conditions and mostly clear skies continue
through the period.
Valleys/Mountains/Deserts...VFR conditions and clear skies continue
through the period. E to NE winds locally gusting 25-40 kt along
coastal slopes of the mountains will expand to include adjacent
foothills and portions of the Inland Empire by 18z. Elevated
offshore wind gusts become more confined to mountain passes by 06z
Thursday. Areas of LLWS/low-level turbulence along foothills/west
mountain slopes.
&&
.MARINE...
No hazardous marine conditions are expected through most of
Saturday. Potential for elevated winds and seas late Saturday into
early next week due to an approaching storm system, but the forecast
remains uncertain; continue to check in for updates.
&&
.SKYWARN...
Skywarn activation is not requested. However weather spotters are
encouraged to report significant weather conditions.
&&
.SGX WATCHES/WARNINGS/ADVISORIES...
CA...None.
PZ...None.
&&
$$
UPDATE...APR
PUBLIC...17
AVIATION/MARINE...Munyan
Office: MTR
FXUS66 KMTR 261757
AFDMTR
Area Forecast Discussion
National Weather Service San Francisco CA
957 AM PST Wed Nov 26 2025
...New AVIATION...
.KEY MESSAGES...
Updated at 741 AM PST Wed Nov 26 2025
- Dry and mild conditions continue through Thursday
- Cooler temperatures Friday and into the weekend as the next
system approaches
&&
.UPDATE...
Issued at 741 AM PST Wed Nov 26 2025
Visibilities have improved across the North Bay and East Bay this
morning. Thus, the Dense Fog Advisory has been cancelled. With less
cloud cover anticipated today, temperatures will warm into the lower
70s across the Central Coast and Santa Cruz Area, approach 70
degrees F in the North Bay, and 60s across much of the remainder of
the region as moderate, dry offshore flow persist in the higher
elevations. Otherwise, the forecast remain on track for the rest of
the day.
RGass
&&
.SHORT TERM...
Issued at 319 AM PST Wed Nov 26 2025
(Today and tonight)
A Dense Fog Advisory remains in effect until 11AM this morning for
the North Bay and Easy Bay Interior Valleys. An upper level ridge
axis will pivot W to E across the West Coast today. Locations with
fog this morning will eventually join the remainder of our service
area with mostly sunny skies, light winds and above normal
temperatures (5-10 degrees for the interior). A meandering surface
high over our coastal waters continues to pull weak flow offshore
from the Bay Area south into the Central Coast, seen well in low
level boundary layer wind fields. Fog is expected to develop once
again later tonight, mainly across the North Bay and portions of the
East Bay, however coverage should be less than what we've seen the
past couple of nights.
&&
.LONG TERM...
Issued at 319 AM PST Wed Nov 26 2025
(Thursday through Tuesday)
Thursday will bring slightly warmer temperatures than today, and
will make for a banner Thanksgiving Day under sunny skies with light
winds and pleasantly mild temperatures. A progressive, upper level
disturbance well to our north takes aim at the Pacific Northwest
Thursday night into Friday. The progressive shortwave trough will
bring some precip to the Intermountain West, with its biggest
influence on our area, a relatively weak and dry cold front that
will bring noticeably cooler temps for Friday and the weekend.
There's better consensus in deterministic guidance to help
compliment the ensemble guidance, suggesting cooler temperatures for
the 'inside slider' type pattern we may see Sunday into the
beginning of next week. The most potent portion of the trough attm
looks to be too far east to bring the elevated winds winds and other
impacts we typically see in that type of pattern.
&&
.AVIATION...
(18Z TAFS)
Issued at 949 AM PST Wed Nov 26 2025
Another impactful morning for a few terminals around the Bay Area,
especially N and E Bay with dense fog. Other terminals remains
VFR or only had some haze impacts. Expecting a repeat again
tonight with lingering offshore flow pulling low level moisture
out of the Central Valley. Used a blend of prob guidance for fog
and what happened last night. Thankfully, the big three stay VFR
to MVFR overnight and tomorrow with some haze possible.
Vicinity of SFO...Challenging start as a finger of clouds drifting
over the terminal. Pushed cigs initially through 1830, but trends
show clearing likely earlier than that. Will have to amend TAF.
VFR there after with some MVFR haze tonight.
SFO Bridge Approach...Similar to SFO. Clouds clearing with some
slantwise haze possible.
Monterey Bay Terminals...VFR
&&
.MARINE...
(Today through Monday)
Issued at 741 AM PST Wed Nov 26 2025
Gentle to moderate northerly flow will persist over the coastal
waters today. Patchy dense fog will be possible again tonight,
especially in the bays. Seas will continue to subside through
Wednesday. Winds will begin to increase again late week, building
moderate to rough seas.
&&
.MTR WATCHES/WARNINGS/ADVISORIES...
CA...None.
PZ...Small Craft Advisory from 3 PM Thursday to 9 AM PST Friday for
Pigeon Pt to Pt Pinos 10-60 NM-Pt Arena to Pt Reyes 10-60
NM.
&&
$$
SHORT TERM...JM
LONG TERM....JM
AVIATION...MM
MARINE...MM
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