FXUS66 KMTR 280402
AFDMTR
Area Forecast Discussion
National Weather Service San Francisco CA
902 PM PDT Sat Jun 27 2026
...New AVIATION, MARINE...
.KEY MESSAGES...
Updated at 1225 AM PDT Sat Jun 27 2026
- Gusty onshore winds through the evening with gusts at gaps and
passes up to 50 mph. Strong winds over the waters with marine
impacts through early next week
- Temperatures warm Sunday into early in the week, although
HeatRisk remains in the Minor category
- Beach hazards through Wednesday morning for south and
southwest facing beaches along the Pacific Coast
&&
.SHORT TERM...
Issued at 106 PM PDT Sat Jun 27 2026
(This evening through Sunday night)
An upper level trough moving across the Pacific Northwest will
keep breezy to windy conditions in place through the evening
across the Bay Area and Central Coast. Expect gusts 20-40 mph,
except up to 50 mph through gaps and passes, through the evening
before subsiding overnight. After this morning's drizzle, light
rain showers, and widespread cloud cover, drier air moving in from
the north will keep skies mostly clear through the evening. A much
more shallow marine layer and drier air will greatly reduce the
amount of stratus overnight into Sunday morning compared to the
past couple of nights. However, stratus is still expected in
coastal areas along the Central Coast as well as higher terrain
due to uplift from northwesterly flow.
On Sunday, the center of the trough will move away from the area.
This will keep the marine layer compressed with mostly clear skies
by the afternoon. High temperatures will rise 5-10 degrees from
today as a result, with 60s along the coast, upper 60s to 70s
along the Bay shoreline, and 70s to low 80s in the interior.
Despite the warming, HeatRisk is expected to remain Minor. Onshore
winds will become breezy once again in the afternoon and evening,
but weaker than today with gusts 15-30 mph, except up to 40 mph
through gaps/passes. Stratus should increase Sunday night, but the
shallow marine layer will limit inland development.
Along the Pacific coastal beaches, there is a possibility for
marginal coastal flooding. Due to the upcoming full moon (Monday),
thermal expansion of Pacific waters, and southerly swells,
coastal flooding for low lying beaches at predominantly south
facing beaches is possible at high tides through Monday. An uptick
in long period southerly swell will result in a high risk of rip
currents and sneaker waves. Never turn your back to the ocean!
Beach hazards will be in effect through the weekend and into much
of next week, see the beaches discussion for more information.
&&
.LONG TERM...
Issued at 106 PM PDT Sat Jun 27 2026
(Monday through next Friday)
Temperatures will continue their upward trajectory on Monday as an
upper ridge over the Eastern Pacific nudges inland. Temperatures
along the coast will hold nearly steady, while highs in the
interior rise a few more degrees. However, the warming trend will
end Tuesday as another upper trough moves into the Pacific
Northwest. This will bring cooler, below normal temperatures once
again by Wednesday and Thursday as the trough ushers in cooler air
aloft. Onshore flow will also increase along with the potential
for a deeper marine layer and coastal drizzle. Onshore winds will
be breezy to windy each afternoon and evening. By Friday,
ensembles are more split on the evolution of the pattern, but
ridging becomes a possibility. This is reflected in the forecast
by an uptick in temperatures.
&&
.AVIATION...
(06Z TAFS)
Issued at 836 PM PDT Sat Jun 27 2026
Mostly clear skies will continue through the TAF period for
northern areas. Elevated winds this evening will ease some into
the night and early morning. Cloud cover will fill in a bit more
over the Monterey Bay with MVFR CIGs tonight, eroding into the
mid morning on Sunday, leading to widespread VFR. Onshore winds
increase again Sunday afternoon, though not as strong as today.
MVFR conditions returning to the Monterey Bay region and areas
along the immediate coast Sunday evening and night.
Vicinity of SFO...Mostly clear through the TAF period. Winds will
remain elevated into the night; winds increasing near 25 kts on
Sunday afternoon. Confidence increasing VFR conditions remaining
through Sunday night.
SFO Bridge Approach...Similar to SFO.
Monterey Bay Terminals...Winds gusting near 20-25 kts the next few
hours with lighter winds overnight. MVFR CIGs will continue to fill
in overnight. These CIGs look to scatter into mid Sunday morning
(15-16z) with weaker onshore winds in the afternoon. MVFR CIGs
filling in again around 03-06z Mon. with moderate to high
confidence on timing and occurrence.
&&
.MARINE...
(Tonight through next Friday)
Issued at 836 PM PDT Sat Jun 27 2026
Stronger winds will continue at times through the night, ease
slightly on Sunday morning and then increase again Sunday evening
and night. 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 as well. Long
period southwest swell will persist through the extended forecast.
&&
.BEACHES...
Updated at 100 PM PDT Sat Jun 27 2026
A Beach Hazards Statement has been issued for the Pacific Coast
Beaches 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 through late Tuesday night for CAZ006-
505-509-529-530.
PZ...Small Craft Advisory until 3 AM PDT Sunday for Mry Bay.
Small Craft Advisory from 3 PM Sunday to 3 AM PDT Monday for Mry
Bay.
Gale Warning until 3 AM PDT Sunday for Pt Arena to Pt Reyes 0-10
nm-Pt Pinos to Pt Piedras Blancas 0-10 nm.
Small Craft Advisory until 3 AM PDT Monday for Pigeon Pt to Pt
Pinos 0-10 nm-Pt Reyes to Pigeon Pt 0-10 nm.
Gale Warning until 3 AM PDT Monday for Pt Arena to Pt Reyes 10-
60 NM.
Small Craft Advisory until 9 AM PDT Monday for Pigeon Pt to Pt
Pinos 10-60 NM.
&&
$$
SHORT TERM...Tangen
LONG TERM....Tangen
AVIATION...APR
MARINE...APR
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Prepared by Boulder-Creek.com Weather at: Sat Jun 27 22:30:03 PDT 2026
From the National Weather Service
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