FXUS66 KMTR 031131
AFDMTR

Area Forecast Discussion
National Weather Service San Francisco CA
331 AM PST Tue Feb 3 2026

...New AVIATION, MARINE, BEACHES...

.KEY MESSAGES...
Updated at 220 AM PST Tue Feb 3 2026

 - Above normal temperatures and dry conditions through the work week

 - Hazardous beach conditions from late Wednesday night through
   Saturday evening at Pacific Coast beaches

 - 20 to 40% chance of rain developing north to south on Sunday, 
   with the higher amounts favoring the North Bay and the coastal 
   mountains. 

&&

.SHORT TERM...
Issued at 220 AM PST Tue Feb 3 2026 
(Today and tonight)

Another day of warm and dry conditions today as high pressure 
builds overhead. Temperatures this morning will start out cool 
once again, mainly in the 40s, thanks to mostly clear skies across
the area. Patchy fog in the North and East Bay valleys as well as
the southern Salinas Valley will quickly dissipate after sunrise.
Light offshore winds this afternoon will boost the warming 
provided by the ridge and mostly sunny skies, with highs up to 5 
degrees warmer than Monday. This will place high temperatures 
around 5 to 15 degrees above seasonal normals, with mid 60s to 
lower 70s near the coast and 70s to near 80 inland. Conditions 
tonight will be very similar to this morning, with lows a couple 
degrees higher and patchy fog expected in the same general areas.

&&

.LONG TERM...
Issued at 220 AM PST Tue Feb 3 2026 
(Wednesday through Monday)

The warmest day of the period at most locations will be Wednesday
as the ridge reaches peak strength and begins to shift east, 
allowing offshore winds to tick up. This will push highs up a few 
more degrees from today. On Thursday, highs should cool slightly 
as the ridge continues to move away. On Friday and Saturday, a 
weak low will move near the coast and into southern California. 
Impacts will be minimal, but clouds will increase and winds will 
turn onshore, continuing the cooling trend. 

A more significant pattern change will take place Sunday and 
Monday as a deeper trough moves into the Pacific Northwest. This 
will bring potential for light precipitation and a cold front as 
the trough progresses. Latest ensemble guidance has delayed the 
onset of precipitation, but chances increase increase from north 
to south through the day Sunday. The chance of rain rises above 20
percent by Sunday morning across the North Bay, Sunday afternoon 
for the greater SF Bay area, and Sunday evening for the Central 
Coast. Rain chances continue at around 20 to 40 percent into 
Monday. As our area remains on the southern fringe of this system,
rain amounts are trending light and low impact overall. However, 
temperatures will cool to near or even slightly below normal, and 
winds may become locally breezy. 

&&

.AVIATION...
(12Z TAFS)
Issued at 331 AM PST Tue Feb 3 2026

Strong 500 mb high pressure over the forecast area will result in
VFR except for patchy morning fog /LIFR-IFR/.

Vicinity of SFO...VFR. Light northeast wind becoming light northwest
in the afternoon and evening.

SFO Bridge Approach...Similar to SFO.

Monterey Bay Terminals...VFR. Southeast cool air drainage winds
today becoming light and variable mid to late afternoon. Southeast
cool air drainage winds redevelop tonight and Wednesday morning. 

&&

.MARINE...
(Today through Sunday)
Issued at 319 AM PST Tue Feb 3 2026

Moderate seas and gentle northerly breezes will persist into
midweek. Moderate northwesterly breezes and building seas will
result in a return of rough seas late Thursday night and Friday,
continuing into the weekend.

&&

.BEACHES...
Issued at 319 AM PST Tue Feb 3 2026

A Beach Hazards Statement is in effect from 12 AM PST Thursday to
9 PM PST Saturday at all Pacific Coast beaches. Westerly swell will
bring an increased risk for sneaker waves and strong rip currents
with breaking waves of 14 to 19 feet.

Remember to stay off of jetties, piers, rocks, and other waterside
infrastructure, remain out of the water, and never turn your back
on the ocean!

&&

.MTR WATCHES/WARNINGS/ADVISORIES...
CA...Beach Hazards Statement from late Wednesday night through 
     Saturday evening for CAZ006-505-509-529-530.

PZ...None.
&&

$$

SHORT TERM...Tangen
LONG TERM....Tangen
AVIATION...Canepa
MARINE...Canepa

Visit us at www.weather.gov/sanfrancisco

Follow us on Facebook, X, and YouTube at:
www.facebook.com/nwsbayarea
x.com/nwsbayarea
www.youtube.com/nwsbayarea


  
Prepared by Boulder-Creek.com Weather at: Tue Feb 3 08:30:03 PST 2026