Technical NOAA Weather Discussion

FXUS66 KMTR 050011
AFDMTR

Area Forecast Discussion
National Weather Service San Francisco CA
359 PM PST Wed Nov 4 2026

...New AVIATION...

.KEY MESSAGES...
Updated at 1251 PM PST Wed Nov 4 2026

 - Seasonal to slightly below normal temps through midweek;
   warming trend and above normal temps late week into weekend

 - Coastal Flooding along Bayshore locations at high tide now
   through Saturday

 - Hazardous beach conditions Thursday through Saturday

&&

.SHORT TERM...
Issued at 1251 PM PST Wed Nov 4 2026
(This evening through Thursday night)

Low pressure continues to gradually progress southwards along the 
California Coast with the center passing by the Monterey/SLO County 
line this afternoon. Ridging rebuilds over California tonight into 
tomorrow which will bring a return of warmer temperatures. The 
initial ridge is moderated by a weak shortwave trough that pushes 
inland and deepens over Southern California. For us, that means high 
temperatures only warm a few degrees on Thursday with highs climbing 
back into the upper 60s to mid 70s across the interior and 60s along 
the coast. This is seasonal to slightly above normal (5 degrees) for 
early November. Morning low temperatures will be in the 40s across 
the interior and low 50s across the higher elevations. Expect 
overcast skies returning by late this evening and continuing through 
late Thursday morning. Dry conditions continue through the duration 
of the forecast period. Diurnally breezy conditions with gusts 
peaking between 20-30 mph continue during the afternoon/evening for 
mountain gap/passes (Salinas Valley, Altamont Pass), the higher 
elevations, and along the coast.

A combination of high astronomical tides and thermal expansion due 
to El Nino will result in coastal flooding concerns across Bayshore 
locations across the San Francisco, San Pablo, and Monterey Bays. At 
the San Francisco tidal gauge, high tide is expected to be 1.3 ft 
above normal (7.1 ft MLLW) at 8:35 AM Thursday 11/5, including 1.2 
ft of surge residual that will enhance the astronomical tide and 
flooding threat. High tide varies up to 90 minutes earlier or later 
along the Pacific Coast and through the San Francisco Bay, 
respectively. Hazardous beach conditions are expected Thursday 
through Saturday due to an active sea state. A Beach Hazards 
Statement is in effect Thursday morning to Saturday evening.

&&

.LONG TERM...
Issued at 1251 PM PST Wed Nov 4 2026
(Friday through next Tuesday)

Ridging dominates much of the upcoming long term forecast with a 
warming trend and return of above normal temperatures anticipated. 
High temperatures warm into the mid to upper 70s with pockets on low 
80s across the warmest locations (interior Central Coast, southern 
Santa Clara Valley). This is around 1Dry conditions
expected today into early next week.
0 degrees above normal for this 
time of year. Temperatures remain consistent through early to mid 
next week when we see our first indication that troughing/unsettled 
weather are returning. Tuesday to Wednesday looks to be a transition 
day with ridging exiting east and troughing building in. This will 
bring cooler, more seasonal temperatures back with highs dropping 
into the 60s to low 70s Tuesday and Wednesday. Ensembles are in 
favor of rain returning and continuing through mid to late month. 
With a wetter second half of the month possible, now would be a good 
time to ensure your gutters are cleared out, outdoor items are 
secured, and any other winter preparations are completed.

Coastal flooding concerns continue through Monday with the 
combination of high astronomical tides and thermal expansion surge 
resulting in minor flooding in Bayshore locations along the San 
Francisco, San Pablo, and Monterey Bays. At the San Francisco tidal 
gauge, high tide is expected to be 1.4 ft above normal (7.2 ft MLLW) 
at 9:08 AM  Friday 11/6, 1.6 ft above normal (7.4 ft MLLW) at 9:38 
AM Saturday 11/7, 1.6 ft above normal (7.4 ft MLLW) at 10:06 AM 
Sunday 11/8, and 1.6 ft above normal (7.4 ft MLLW) at 10:35 AM 
Monday 11/9. These predictions include up to 1.2 ft of surge that 
will enhance the astronomical tide and flooding threat. High tide 
varies up to 90 minutes earlier or later along the Pacific Coast and 
through the San Francisco Bay, respectively. In addition, long-
period swell Thursday through Saturday will create hazardous 
conditions along the Pacific coast beaches with an increased risk of 
sneaker waves and rip currents.

&&

.AVIATION...
(00Z TAFS)
Issued at 359 PM PST Wed Nov 4 2026

High pressure returns during the 00z TAFs. High clouds will move 
in from the west tonight into Thursday morning. At least partial
radiative cooling will likely result in patchy fog /IFR-LIFR/ tonight
and Thursday morning. Otherwise dry weather continues with VFR.

Vicinity of SFO...VFR. Wind westerly 15 to 25 knots early to mid 
evening then light northeast wind tonight through Thursday morning.
West to northwest wind 10 to 15 knots late Thursday afternoon and
evening.

SFO Bridge Approach...Similar to SFO.

Monterey Bay Terminals...VFR. Onshore winds 10 knots shifting to
light southeasterly tonight, then becoming northwest 5 to 10 knots
Thursday afternoon. 

&&

.MARINE...
(Tonight through next Monday)
Issued at 246 PM PST Wed Nov 4 2026

Quiet weather on tap for the rest of the week high pressure
building into the region. Northerly winds become moderate to fresh
and slacken to gentle to moderate breezes for Sunday.  Moderate to
rough seas prevail through the weekend.

&&

.BEACHES...
Issued at 329 AM PST Wed Nov 4 2026

Hazardous beach conditions will be present at Pacific Coast beaches 
Thursday through Saturday as long period (14-18 second) 
westerly/northwesterly swell will bring an increased risk for 
sneaker waves and strong rip currents with breaking waves of 12 to 
16 feet. Waves can sweep across the shoreline without warning, 
pulling people into the sea from beaches, jetties, and rocks. Stay 
off of jetties, piers, rocks, and other waterside infrastructure. 
Remain out of the water to avoid hazardous surf and never turn your 
back on the ocean! Hazardous beach conditions may linger into Sunday 
and Monday and thus may warrant an extension of the Beach Hazards 
Statement. 

Sarment

&&

.MTR WATCHES/WARNINGS/ADVISORIES...
CA...Coastal Flood Advisory until 1 PM PST Monday for CAZ006-506-508-
     530.

     Beach Hazards Statement from late tonight through Saturday 
     evening for CAZ006-505-509-529-530.

PZ...Small Craft Advisory until 3 PM PST Thursday for Pigeon Pt to Pt 
     Pinos 10-60 NM-Pt Arena to Pt Reyes 0-10 nm-Pt Arena to Pt 
     Reyes 10-60 NM.

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

&&

$$

SHORT TERM...Kennedy
LONG TERM....Kennedy
AVIATION...Canepa
MARINE...KR

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Prepared by Boulder-Creek.com Weather at: Wed Nov 4 16:30:03 PST 2026
From the National Weather Service