FXUS66 KMTR 261856
AFDMTR

Area Forecast Discussion
National Weather Service San Francisco CA
1156 AM PDT Fri Jun 26 2026

...New AVIATION, MARINE...

.KEY MESSAGES...
Updated at 110 AM PDT Fri Jun 26 2026

 - Gusty onshore winds today and Saturday with east-west mountain
   passes as high as 50+ mph and marine impacts through the weekend

 - An upper trough brings cooler temperatures, moisture, and a
   deeper marine layer with AM drizzle this morning and Saturday

 - Beach hazards return Saturday morning through Wednesday morning 
   for south and southwest facing beaches along the Pacific Coast

&&

.SHORT TERM...
Issued at 110 AM PDT Fri Jun 26 2026 (Tonight through Saturday)

Marine layer has begun to move inland for many coastal cities. It 
will persist through the night into the day today with most of the 
area partly to mostly cloudy. The marine layer is deepening closer 
to 2000-2500 ft, significant enough for patchy drizzle this morning 
along the Pacific Coast. High clouds will continue to move into the 
area of the the trough. 

High pressure that brought above normal temperatures to the area has 
been replaced by a deepening trough from the Pacific Northwest. 
Elevated winds observed yesterday strengthen today as the gradient 
continues to tighten and the front moves through the area. East- 
west passes could see gusts up to 50+ mph with many other locations 
gusting up to 25-35 mph. Following the passage of the front, 
temperatures cooldown significantly falling 4-10 degrees compared to 
yesterday for most locations outside of the immediate coast. Low 
clouds will likely struggle to clear out this afternoon with 
decent moisture in the lower levels and high clouds will move in 
from north to south. 

Additional cooling is expected for Saturday with an even deeper 
marine layer ushering in widespread coastal drizzle and pockets of 
light rain starting as early as late Friday night/ early Saturday 
morning. Saturday should be the coolest day of the forecast with 
clouds struggling to mix out in the afternoon and a slower trend to 
the movement of the low. While it meanders along the borders of 
CA/NV/OR, highs on Saturday should only reach the 50s and 60s for 
most spots, with low to mid 70s for interior areas, generally 10-15 
degrees below normal.

The winds will increase not just for inland spots, but also for the 
coastal waters. More information can be found in the marine section 
below.

&&

.LONG TERM...
Issued at 110 AM PDT Fri Jun 26 2026 (Saturday night through next
Thursday)

The pattern begins to shift Sunday as the aforementioned low weakens 
and starts to move up into Idaho and Montana and heights slowly 
increase. With this, the marine layer will begin to compress a bit 
each day into early next week, and temperatures will slowly warm 
back towards normal. General model trends are pushing temperatures 
higher for next week, but ensemble guidance continues to favor weak 
troughing prevailing which would keep us a bit cooler. Should the 
latter prevail, the coastal waters may continue to be impacted by 
gusty northwest winds through much of the week, with marine hazards 
potentially prevailing. 

The concern for hazardous beach conditions return for Pacific Coast 
beaches this weekend as long period southerly swells return. More 
information below in Beaches, but remember to never turn your 
back to the ocean!

&&

.AVIATION...
(18Z TAFS)
Issued at 1156 AM PDT Fri Jun 26 2026

Lower clouds are scattering and eroding for all but the immediate 
coast, while mid and high clouds continue to move through the area. 
Winds increase across the region build into the afternoon becoming 
breezy to gusty with mostly westerly wind directions. Winds reduce 
into the evening as IFR/MVFR CIGs move inland. Pockets of mist and 
drizzle look to affect visibilities along the coast and some 
slightly more inland areas. Breezier winds arrive into Saturday 
morning, scattering cloud cover from the north to the south. The 
North Bay looks to clear in the early morning, the SF Bay in the mid 
morning and the Monterey Day beyond the end of the TAF period. Gusty 
winds will build into that day as cloud cover erodes across the 
region.

Vicinity of SFO...MVFR CIGs last into the afternoon but scatter as 
breezy and gusty west winds arrive. Winds reduce into the evening 
MVFR CIGs return. Mist and drizzle look to affect the terminal in the 
late night, offering slight reductions in visibilities. Cloud cover 
lifts and scatters into the mid morning as breezy west winds arrive. 
Strong gusts build into that afternoon, peaking around 33 kts.

SFO Bridge Approach...Similar to SFO.

Monterey Bay Terminals...Cloud cover is clearing leading to VFR as 
breezy west winds arrive. Winds will reduce into the evening with 
MVFR CIGs building overland. CIGs fall to IFR overnight with some 
drizzle and mist affecting visibilities.

&&

.MARINE...
(Today through Wednesday)
Issued at 1156 AM PDT Fri Jun 26 2026

Winds have reduced in the outer waters, but continue to be breezy
to gusty along the immediate coast. Winds across the waters will
reduce through the day but begin to strengthen again Saturday
afternoon. These strong winds and rough seas will result in
hazardous conditions for small craft across the waters at times
well into the work week. Expect gale force gusts to develop in the
northern outer waters and along coastal jet regions over the
weekend as well. Long period southwest swell will persist through
the extended forecast.

&&

.BEACHES...
Issued at 110 AM PDT Fri Jun 26 2026

A Beach Hazards Statement has been issued for the Pacific Coast 
Beaches from Saturday morning through Wednesday morning as long 
period southerly swell returns to the coast, creating an increased
risk of sneaker waves and strong rip currents, especially for 
south and southwest facing beaches. Hazardous beach conditions are
advertised, specifically for moderate to steeply sloped beaches 
along the Pacific Coast of the North Bay, San Mateo, Santa Cruz 
counties. Sneaker waves will run up the beach much farther than 
other waves, potentially catching beachgoers by surprise and 
resulting in people being swept into the water. Rip currents are 
strong enough to pull the strongest swimmers away from shore. Swim
near a lifeguard if possible. Stay back from the beach, and away 
from jetties, piers, beachside rocks, and other infrastructure 
near the water. Never turn your back to the ocean! 

&&

.MTR WATCHES/WARNINGS/ADVISORIES...
CA...Beach Hazards Statement from late tonight through late Tuesday 
     night for CAZ006-505-509-529-530.

PZ...Small Craft Advisory until 3 AM PDT Sunday for SF Bay N of Bay 
     Bridge.

     Small Craft Advisory until 3 AM PDT Saturday for Mry Bay.

     Small Craft Advisory from 9 AM Saturday to 3 AM PDT Sunday for 
     Mry Bay-Pigeon Pt to Pt Pinos 0-10 nm-Pt Reyes to Pigeon Pt 
     0-10 nm.

     Small Craft Advisory until 3 PM PDT Saturday for Pt Arena to Pt 
     Reyes 0-10 nm-Pt Pinos to Pt Piedras Blancas 0-10 nm.

     Gale Warning from 3 PM Saturday to 3 AM PDT Sunday for Pt Arena 
     to Pt Reyes 0-10 nm-Pt Arena to Pt Reyes 10-60 NM-Pt Pinos 
     to Pt Piedras Blancas 0-10 nm.

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

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

     Small Craft Advisory from 3 PM Saturday to 3 AM PDT Sunday for 
     Pigeon Pt to Pt Pinos 10-60 NM.

&&

$$

SHORT TERM...Malarkey
LONG TERM....Malarkey
AVIATION...Murdock
MARINE...Murdock

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Prepared by Boulder-Creek.com Weather at: Fri Jun 26 12:30:03 PDT 2026