FXUS66 KMTR 242018
AFDMTR
Area Forecast Discussion
National Weather Service San Francisco CA
118 PM PDT Sat Oct 24 2026
...New SHORT TERM, LONG TERM...
.KEY MESSAGES...
Updated at 914 AM PDT Sat Oct 24 2026
- Near normal temperatures this weekend, cooling to slightly
below normal through the remainder of the upcoming week
- Coastal flooding due to astronomical high tides and thermal
expansion this weekend through Thursday
&&
.SHORT TERM...
Issued at 114 PM PDT Sat Oct 24 2026
(This evening through Sunday night)
Clear sky conditions are observed across all of the Bay Area and
north Central Coast this afternoon. This has allowed temperatures
to warm to into the upper 60s to lower 70s regionwide. Once the
sun sets, temperatures will cool into the 50s and bottom out in
the lower 40s across the North Bay Valleys Sunday morning.
Elsewhere, expecting upper 40s to low 50s across the remainder of
the region. There is a greater potential to see fog across the
Russian River and Petaluma valleys early Sunday morning as the
lack of offshore flow should allow for decent radiational cooling.
However, incoming high clouds may limit that cooling as a cut-off
mid/upper level low is forecast to push into the Pacific
Northwest Sunday night into Monday. Expect temperatures to be
similar on Sunday as they are today, generally within a few
degrees of normal.
&&
.LONG TERM...
Issued at 114 PM PDT Sat Oct 24 2026
(Monday through next Friday)
The aforementioned system mainly impacting the Pacific Northwest
and northern California has the potential to bring very light
rainfall to the northern coastal waters and far northern portions
of the North Bay Monday morning, generally only a few hundredths
of an inch or so. As such, temperatures cool to below normal by a
few degrees on Monday with a gradual cooling trend throughout the
remainder of the week as the mid/upper level trough off of the
West Coast deepens. Cooler, unsettled conditions look to return by
Friday and continue into next weekend. However, confidence has
lowered since yesterday's writing. Be sure to stay up-to-date with
the latest forecast information from trusted sources.
&&
.AVIATION...
(18Z TAFS)
Issued at 1039 AM PDT Sat Oct 24 2026
Quiet weather and VFR conditions are expected over the TAF cycle.
Some high clouds should start to move into the region on Sunday, as
a upper low moves into the PacNW.
Vicinity of SFO...Quiet weather and VFR conditions will prevail
through the TAF cycle. Winds are expected to become onshore this
afternoon and continue into the evening, with lighter and variable
winds returning for the overnight hours.
SFO Bridge Approach...Similar to SFO.
Monterey Bay Terminals...The forecast will be on repeat as we go
from offshore wind to onshore winds this afternoon. Later this
evenings, winds will revert and become lightly offshore again.
&&
.MARINE...
(Today through Thursday)
Issued at 914 AM PDT Sat Oct 24 2026
Gentle to moderate northerly breezes persist into early next week
while becoming northwesterly with occasional fresh gusts. Rough
seas will continue to gradually subside to moderate by Sunday and
remain so through much of next week.
&&
.MTR WATCHES/WARNINGS/ADVISORIES...
CA...Coastal Flood Advisory until 3 PM PDT Thursday for CAZ006-506-
508-529-530.
Coastal Flood Advisory from 9 AM Monday to 3 PM PDT Thursday for
CAZ505-509.
PZ...None.
&&
$$
SHORT TERM...RGass
LONG TERM....RGass
AVIATION...KR
MARINE...KR
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Prepared by Boulder-Creek.com Weather at: Sat Oct 24 14:30:03 PDT 2026
From the National Weather Service
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