FXUS66 KMTR 272015
AFDMTR

Area Forecast Discussion
National Weather Service San Francisco CA
115 PM PDT Sat Jun 27 2026

...New SHORT TERM, LONG TERM...

.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...
(18Z TAFS)
Issued at 1155 AM PDT Sat Jun 27 2026

Lower clouds are scattering and eroding, while mid and high clouds 
continue to move through the area. Winds increase across the region 
into the afternoon becoming breezy to gusty with the strongest winds 
expected along the coast and around the SF Bay, affecting HAF, OAK, 
and SFO. Winds will ease into the night for most areas, the 
exceptions being SFO and HAF that remain windy and breezy into the 
late night. Cloud cover returns to the Monterey Bay into the late 
night with MVFR CIGs and light to moderate winds. This cloud cover 
erodes into the mid morning on Sunday, leading to widespread VFR.

Vicinity of SFO...Cloud cover continues to lift and scatter with 
clearer conditions expected into the afternoon as west winds build. 
Strong gusts build develop into the mid afternoon, peaking around 35 
kts. These winds last into the night before reducing. 

SFO Bridge Approach...Similar to SFO.

Monterey Bay Terminals...Cloud cover is clearing leading to VFR as 
breezy west winds arrive. Winds will reduce slightly into the 
evening but remain breezy as scattered low clouds affect the area. 
Winds become light to moderate in the late night as MVFR CIGs fill 
over the terminals. These CIGs look to scatter into mid Sunday 
morning.

&&

.MARINE...
(Today through Thursday)
Issued at 1155 AM PDT Sat Jun 27 2026

Breezy northwest winds continue through the morning. Stronger
winds become more widespread across the the waters this afternoon
and through the 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
over the weekend 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-SF Bay N 
     of Bay Bridge.

     Small Craft Advisory from 3 PM Sunday to 3 AM PDT Monday for Mry 
     Bay.

     Small Craft Advisory until 3 PM PDT this afternoon 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-Pt Reyes to Pigeon Pt 0-10 nm.

     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-Pt Reyes to 
     Pigeon Pt 0-10 nm.

     Small Craft Advisory until 3 AM PDT Monday for Pigeon Pt to Pt 
     Pinos 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...Murdock
MARINE...Murdock

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Prepared by Boulder-Creek.com Weather at: Sat Jun 27 14:30:03 PDT 2026