FXUS66 KMTR 021225
AFDMTR

Area Forecast Discussion
National Weather Service San Francisco CA
425 AM PST Tue Dec 2 2025

...New MARINE...

.KEY MESSAGES...
Updated at 418 AM PST Tue Dec 2 2025

 - A more substantial offshore wind push arrive late tonight and peak
   Wednesday morning for the North Bay, Bay Area, and Santa Cruz 
   Mountains.

 - Quiet weather again after Wednesday, continuing into the 
   weekend.

 - Hazardous beach conditions through Wednesday.

 - King Tides arrive December 2 - 7.

&&

.SHORT TERM...
Issued at 418 AM PST Tue Dec 2 2025
(Today and tonight)

Zonal flow over the region tightens as an upper level low develops 
and slides into the Great Basin by Wednesday. Quiet weather is on 
tap, with light offshore flow today. Though winds increase late 
tonight and peak Wednesday morning for the North Bay, Bay Area, and 
Santa Cruz Mountains. These winds will have gusts around 30-45 mph, 
with locally higher gusts possible on higher terrain in the North 
Bay mountains. Conditions will dry out some; however, given earlier 
rainfalls this year fuel moisture should mitigate fire weather 
concerns. &&

.LONG TERM...
Issued at 418 AM PST Tue Dec 2 2025
(Wednesday through Monday)

Winds begin to wind down during the late morning and afternoon hours 
on Wednesday. After that fairly quiet weather remains on tap as 
upper level ridging noses into the region. Ensembles hold weak 
ridging through the weekend, perhaps even into early next week. This 
matches the Climate Prediction Center's 8-14 day outlook which has 
us leaning above normal for temperatures, with near normal or just 
below normal chances for precipitation. 

&&

.LONG TERM...
Issued at 418 AM PST Tue Dec 2 2025
(Wednesday through Monday)

Winds begin to wind down during the late morning and afternoon hours 
on Wednesday. After that fairly quiet weather remains on tap as 
upper level ridging noses into the region. Ensembles hold weak 
ridging through the weekend, perhaps even into early next week. This 
matches the Climate Prediction Center's 8-14 day outlook which has 
us leaning above normal for temperatures, with near normal or just 
below normal chances for precipitation. 

&&

.AVIATION...
(06Z TAFS)
Issued at 942 PM PST Mon Dec 1 2025

Currently a mixed bag of MVFR-VFR at the terminals. Only high clouds 
in the sky, but visibilities are starting to drop at some terminals. 
Generally an optimistic persistence forecast on tap. High clouds and 
offshore flow should at least somewhat limit the extent in time and 
space of fog/stratus.

Vicinity of SFO...Currently VFR with easterly flow. Moderate to high 
confidence on VFR prevailing through the TAF period.

SFO Bridge Approach...Similar to SFO.

Monterey Bay Terminals...Currently VFR with easterly flow at MRY and 
VFR and calm at SNS. Moderate to high confidence on VFR prevailing 
through the TAF period at both terminals.

&&

.MARINE...
(Today through Sunday)
Issued at 425 AM PST Tue Dec 2 2025

Expect hazardous marine conditions into the afternoon afternoon
as northerly breezes increase to become fresh to strong and seas
become rough to very rough. Gale force gusts are expected over the
northern outer waters. Conditions improve Thursday with moderate
northerly breezes and moderate seas. Locally strong winds and
rough seas will remain possible over the far northwestern portion
of the northern outer waters.

&&

.BEACHES...
Issued at 1014 AM PST Mon Dec 1 2025

Hazardous beach conditions will continue into Wednesday evening with 
a very energetic surf zone. A beach hazards statement remains in 
effect for the coastline from Sonoma County to Monterey County 
through 10 PM PST Wednesday evening. Breaking waves 10 to 14 feet, 
with long lulls of 10 to 20 minutes or more between largest sets can 
be expected. Some of the favored break points may exceed 20 feet at 
times. Forerunners will be 18+ seconds with heights of 2-5 feet into 
tonight resulting in the greatest risk for sneaker waves. This 
combined with high astronomical tides in the morning hours will 
increase the aforementioned risk. Sneaker waves can unexpectedly run 
significantly farther up the beach than normal, including over rocks 
and jetties. Rip currents are typically more frequent and stronger 
in the vicinity of jetties, inlets, and piers.

RGass

&&

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

     Coastal Flood Advisory until 3 PM PST Sunday for CAZ006-506-508-
     529-530.

PZ...Small Craft Advisory from 3 AM to 3 PM PST Wednesday for SF Bay 
     N of Bay Bridge.

     Small Craft Advisory from 3 PM this afternoon to 3 AM PST 
     Wednesday for Pt Arena to Pt Reyes 0-10 nm.

     Small Craft Advisory from 9 AM this morning to 3 PM PST this 
     afternoon for Pt Arena to Pt Reyes 10-60 NM.

     Gale Warning from 3 PM this afternoon to 9 AM PST Wednesday for 
     Pt Arena to Pt Reyes 10-60 NM.

     Small Craft Advisory from 3 PM this afternoon to 9 AM PST 
     Wednesday for Pigeon Pt to Pt Pinos 10-60 NM.

&&

$$

SHORT TERM...KR
LONG TERM....KR
AVIATION...Sarment
MARINE...Murdock

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Prepared by Boulder-Creek.com Weather at: Tue Dec 2 04:30:02 PST 2025