138
FXUS66 KMTR 262125
AFDMTR

Area Forecast Discussion
National Weather Service San Francisco CA
125 PM PST Wed Nov 26 2025

...New SHORT TERM, LONG TERM...

.KEY MESSAGES...
Updated at 124 PM PST Wed Nov 26 2025

 - Dry and mild conditions continue through Thursday

 - Cooler temperatures Friday and into the weekend as the next
   system approaches

&&

.SHORT TERM...
Issued at 124 PM PST Wed Nov 26 2025
(This evening through Thursday)

Seeing less cloud cover compared to yesterday at this hour. Thus, a
greater potential to reach our high temperatures this afternoon.
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. This is as moderate, dry
offshore flow persist in the higher elevations and a mid/upper level
ridge axis is currently in place aloft.

Tonight, again expecting less widespread coverage of low clouds and
fog. However, cannot rule out patchy to areas of dense fog across
the North Bay valleys, East Bay valleys, and the Santa Clara Valley
overnight. Temperatures overnight are forecast to be mostly in the
upper 30s to lower 40s. In the higher elevations, we can expect
temperatures to be in the mid 50s to lower 60s due to continued
offshore winds.

Any low clouds and/or fog that does develop will give way to mostly
sunny skies by Thursday afternoon. This will again allow temperatures
to be up to 10 degrees above seasonal averages. Overall, within a
few degrees of what today`s forecast high temperatures will be.

&&

.LONG TERM...
Issued at 124 PM PST Wed Nov 26 2025
(Thursday night through next Tuesday)

Thursday night and into Friday an upper level trough is forecast to
move into the Pacific Northwest. This will bring a weak, dry frontal
boundary across the Bay Area and Central Coast cooling temperatures
to near seasonal averages. A general troughing pattern will persist
over the region through early next week as high pressure builds
offshore. Thus, look for weak to moderate offshore flow in the
higher elevations, dry conditions, and temperatures near seasonal
averages.

&&

.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...RGass
LONG TERM....RGass
AVIATION...MM
MARINE...MM

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