FXUS66 KMTR 141125
AFDMTR

Area Forecast Discussion
National Weather Service San Francisco CA
325 AM PST Fri Nov 14 2025

...New AVIATION, MARINE...

.KEY MESSAGES...
Updated at 204 AM PST Fri Nov 14 2025

 - Active weather pattern continues through next week with
   multiple chances for rain.

 - Hazardous beach conditions persist through Friday.

 - Cooler temperatures return late weekend into next week.

&&

.SHORT TERM...
Issued at 204 AM PST Fri Nov 14 2025
(Today and tonight)

Rain has largely stopped across the Bay Area with only a few 
scattered showers remaining over the Central Coast and South Bay. 
The North Bay Mountains, Santa Cruz Mountains, and Santa Lucia Range 
saw the highest precipitation totals between 4"-6". In the Santa 
Lucia Range, the Mining Ridge site (MNRC1) was our big winner and 
saw a total of 6.5" over the last 24 hours. Elsewhere, the lower 
elevations of the North Bay, East Bay, and San Francisco Peninsula 
saw 1-2.5", the South Bay saw 1-2", and the Central Coast saw
between 0.5-2". A look at the California Nevada River Forecast 
Center (CNRFC) shows that nearly every site in the Bay Area and 
Monterey/San Benito is running anywhere from 100% to over 200% of 
normal for the water year so far. A promising start to our water 
year so far!

The upper level low to our northwest is expected to weaken, 
gradually move southward, and become a cut-off low offshore of 
Southern California by later today. This will continue to bring 
light rain across the region with totals ranging from a few 
hundredths of an inch to around a tenth of an inch. There is a low 
(5%) chance of thunderstorms across the Central Coast and South Bay 
late this morning and afternoon. NAM guidance shows at least a few 
hundred J/kg of most unstable CAPE across the South Bay and Central 
Coast today but the 700-500 mb lapse rates (the change in 
temperature over the 700 mb to 500 mb layer) don't look that 
impressive. Lapse rates are forecast to be in the 6-7 C/km range 
which suggests a more stable to slightly conditionally unstable 
environment. Morning low temperatures are feeling a bit chillier 
with lows in the mid 40s to low 50s expected today. Temperatures 
across the higher elevations of the Central Coast will be even 
cooler, with lows potentially dropping into the upper 30s to low 
40s. The combination of light rain and cooler mornings may result in 
a chillier than normal early morning commute so make sure to dress 
adequately. High temperatures will be in the low to mid 60s across 
the region on Friday with cooler temperatures in the upper 40s to 
50s expected across the highest mountain peaks. 

&&

.LONG TERM...
Issued at 204 AM PST Fri Nov 14 2025
(Saturday through Thursday)

Rainy weather continues on Saturday as the cut-off low off of 
southern California moves inland. This will bring a surge of into 
Southern California which will gradually move northward into the 
Central Coast and result in an additional 0.5-1.5" of rain. While 
the bulk of the rain on Saturday will be over the Central Coast, 
portions of the South Bay and Santa Cruz County will see up to 0.5" 
while the rest of the Bay Area sees between a few hundredths to 
0.25" of rain. This cut-off low will be ejected eastward by an 
incoming deep, upper level trough Sunday into Monday. This system 
will bring widespread rain to the Bay Area and Central Coast Sunday 
into Monday. The North Bay looks to see between 0.5-1.5", the Santa 
Cruz Mountains and Santa Lucia Range will see between 0.5-1.0", and 
the rest of the Bay Area and Central Coast will generally see around 
0.5-0.75". Gustier winds return Sunday into Monday but do not look 
to be as widespread as they were earlier this week. We briefly 
manage to dry out Monday night through Wednesday morning before 
another potential system rolls through mid to late next week.

While rain is the eyecatcher of the forecast, temperatures will 
noticeably cool (both highs and lows) starting Sunday. Saturday will 
be the warmest day through the remainder of the long term forecast 
with highs in the mid to upper 60s across the Bay Area and upper 50s 
to low 60s for the Central Coast. As our upcoming Sunday to Monday 
system brings widespread rain, it will also bring in a much cooler 
airmass. Guidance shows 850 mb temperatures around 8-9C on Saturday 
dropping to 5-6C by Sunday and 3-4C by Monday/Tuesday. This will 
keep our high temperatures in the mid 50s to low 60s for much of the 
next week. Morning low temperatures will drop into the low to mid 
40s across the lower elevations and into the mid to upper 30s across 
the higher elevations. Tuesday and Wednesday mornings are currently 
the coldest of the forecast period so anyone outside early in the 
morning will want to  bundle up. With the combination of cooler 
temperatures and a potential system mid to late next week, the NBM 
is highlighting a low potential for snow on the highest peaks of the 
Santa Lucia and Gabilan Ranges next week. Hopefully you aren't tired 
of cooler and wetter weather already as the CPC indicates below 
normal temperatures and above normal precipitation is likely to 
continue through at least early December. Remember to stay up to 
date on the forecast as our next few systems arrive this week.

&&

.AVIATION...
(12Z TAFS)
Issued at 313 AM PST Fri Nov 14 2025

The low pressure center and associated cold front have moved into
Southern California, leaving a mixture of isolated mist and fog,
with widespread low, mid, and high level clouds across the Bay 
Area and Central Coast. A few isolated showers remain this 
morning, but most terminals should stay dry today. Winds will be 
much lighter than yesterday, and the lower clouds will start to
clear through the afternoon.

Vicinity of SFO...There is only a slight and decreasing chance 
for low ceilings this morning, though with nearly saturated air 
and light winds at the surface, we could still be in for a 
sunrise surprise of reduced visibility. Fortunately a blanket of 
high clouds is reducing radiational cooling and suppressing this 
chance. Otherwise winds will be light and variable through the 
morning before a gentle onshore breeze becomes established through
the afternoon. There is another slight chance for ceilings 
Saturday morning, but the most likely outcome is VFR conditions 
through the TAF period.

SFO Bridge Approach...Similar to SFO.

Monterey Bay Terminals...The best chance for rain is at the
Monterey Bay Terminals this morning, but any showers should be
light and brief. Otherwise VFR conditions are expected with a
steady supply of mid level clouds through the TAF period. 

&&

.MARINE...
(Today through Wednesday)
Issued at 313 AM PST Fri Nov 14 2025

Buoys are reporting a light southerly breeze with very high
westerly swell up to 15 feet/15 seconds. The swell will gradually
subside through the day with more favorable conditions through the
weekend. A fresh to strong northerly breeze arrives Monday,
building rough seas across the inner waters and very rough seas in
the outer waters. Conditions will improve through midweek.

&&

.BEACHES...
Issued at 124 AM PST Thu Nov 13 2025

A Beach Hazards Statement is in effect through Friday evening. 
Long period westerly swell will result in an increased risk for 
sneaker waves and rip currents. Breaking waves of 15 to 20 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 this evening for CAZ006-505-509-
     529-530.

PZ...Small Craft Advisory until 3 PM PST this afternoon for Pigeon Pt 
     to Pt Pinos 0-10 nm-Pt Arena to Pt Reyes 0-10 nm.

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

     Small Craft Advisory until 9 PM PST this evening for Pigeon Pt 
     to Pt Pinos 10-60 NM-Pt Arena to Pt Reyes 10-60 NM-Pt Pinos 
     to Pt Piedras Blancas 0-10 nm.

     Small Craft Advisory from 3 PM to 9 PM PST Saturday for Pt Arena 
     to Pt Reyes 10-60 NM.

&&

$$

SHORT TERM...Kennedy
LONG TERM....Kennedy
AVIATION...Flynn
MARINE...Flynn

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Prepared by Boulder-Creek.com Weather at: Fri Nov 14 04:30:04 PST 2025