541
FXUS66 KMTR 202334
AFDMTR

Area Forecast Discussion
National Weather Service San Francisco CA
334 PM PST Thu Nov 20 2025

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

.KEY MESSAGES...
Updated at 1257 PM PST Thu Nov 20 2025

 - Light, scattered showers continue south of the SF Bay this
   afternoon

 - Any lingering showers expected to end by around midnight. Drier
   and very nice Friday.

 - Quiet pattern setting up going into the Thanksgiving holiday.
   Dry and cool temps.

&&

.SHORT TERM...
Issued at 1257 PM PST Thu Nov 20 2025
(This evening through Friday)

Isolated showers south of the SF Bay will continue to taper off
this afternoon. Moisture on the decline with drier air moving in
from the northwest. Shouldn`t expect too much more rain outside of
a few very isolated showers here and there through the early
evening. We`ll dry out everywhere by about midnight, becoming
clear overnight which will help us cool off by a few degrees. This
will likely be one of the coolest nights we`ve had so far this
season with overnight lows in the lower 40 nearly across the
board, mid-to-upper 40s along the coast and upper 30s for interior
high elevations. Friday looks like a wonderful day to be out and
about with any lingering clouds clearing out early and sunny
skies persisting through the day.

&&

.LONG TERM...
Issued at 1257 PM PST Thu Nov 20 2025
(Friday night through next Wednesday)

Light offshore flow as the closed off upper low lingers around
SoCal/Baja, resulting in weak easterly winds aloft. The marine
layer is expected to reform late Saturday once the atmosphere
begins to re-stratify, but these weak offshore winds will keep it
fairly compressed. Therefore, fog chances increase along the coast
and low inland valleys beginning Sunday morning into early next
week. Not too much in the way of additional impacts from the
offshore winds other than keeping us a bit cooler. Pretty quiet
pattern going into mid next week other than that. A nice ridge
pattern develops along the West Coast and amplifies into the
Thanksgiving.

&&

.AVIATION...
(00Z TAFS)
Issued at 334 PM PST Thu Nov 20 2025

VFR-MVFR and a few lingering showers tonight otherwise expect
patchy fog /LIFR-IFR/ developing tonight and Friday morning.
Patchy morning fog mixing out Friday morning otherwise VFR.

Vicinity of SFO...VFR. A few lingering showers through early to
mid evening otherwise dry tonight and Friday. Northwest wind 10 to
20 knots decreasing and becoming north-northeast 8 knots early
Friday then shifting to northwest 10 knots Friday afternoon.

SFO Bridge Approach...Similar to SFO.

Monterey Bay Terminals...VFR-MVFR. A few lingering showers through
the evening otherwise dry tonight and Friday. West to northwest
winds 10 to 20 knots decreasing to light and variable winds tonight
and Friday morning. Westerly winds 5 to 10 knots Friday afternoon.


&&

.MARINE...
(Tonight through next Tuesday)
Issued at 326 PM PST Thu Nov 20 2025

Hazardous marine conditions continue through the weekend as winds
and swells build. Light rain is exiting, but moderate to strong
winds continue to build with strong to near gale force gusts.
Winds diminish by early Friday with moderate northerly winds
expected into next week. Seas are building to 10 to 15 feet and
remain elevated into early next week. Elevated seas will be
prolonged by the arrival of two distinct rounds of long period
northwesterly swell.

&&

.BEACHES...
Issued at 327 PM PST Thu Nov 20 2025

A Beach Hazards Statement is in effect through Monday evening. A
long period northwesterly swell will result in an increased risk
for sneaker waves and rip currents. Breaking waves of 13 to 18
feet are expected. 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.

&&

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

PZ...Small Craft Advisory until 9 PM PST Friday for Pt Arena to Pt
     Reyes 0-10 nm-Pt Pinos to Pt Piedras Blancas 0-10 nm.

     Small Craft Advisory until 9 PM PST this evening for Pt Reyes to
     Pigeon Pt 0-10 nm.

     Small Craft Advisory until 9 AM PST Friday for Pigeon Pt to Pt
     Pinos 0-10 nm.

     Small Craft Advisory until 9 AM PST Saturday for Pigeon Pt to Pt
     Pinos 10-60 NM-Pt Arena to Pt Reyes 10-60 NM.

&&

$$

SHORT TERM...Behringer
LONG TERM....Behringer
AVIATION...Canepa
MARINE...Murdock

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