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been replaced by a deepening trough from the Pacific Northwest.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
From the National Weather Service
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