452
FXUS66 KMTR 171006
AFDMTR

Area Forecast Discussion
National Weather Service San Francisco CA
306 AM PDT Tue Jun 17 2025

...New SYNOPSIS, SHORT TERM, LONG TERM, MARINE...

.SYNOPSIS...
Issued at 305 AM PDT Tue Jun 17 2025

Quiet weather continues with a slight warmup today and tomorrow,
with temperatures gradually falling back to near normal or slightly
below normal for the end of the week and weekend.

&&

.SHORT TERM...
(Today and tonight)
Issued at 305 AM PDT Tue Jun 17 2025

Temperatures warm to slightly above normal today and tomorrow with
progressive upper level shortwave ridging across our area today. Very
dry air above the marine layer remains in place helping to limit low
stratus over our coastal areas, with bright sunshine inland. As the
upper ridging shifts east, zonal flow sets up across our area late
tonight when the marine layer deepens with more widespread coastal
low marine layer stratus expected to return overnight into early
Wednesday morning.

&&

.LONG TERM...
(Wednesday through Monday)
Issued at 305 AM PDT Tue Jun 17 2025

Primarily zonal upper flow across our area on Wednesday will result
in the warmest day of the week before a deepening trough leads to
height falls, cooler temperatures and a more robust marine layer
intruding farther inland for Thursday and beyond. Temperatures will
cool back down to seasonal averages or slightly below. The upper low
over the Pacific Northwest will gradually shift inland on Friday
into the weekend. Gusty onshore flow for the end of the week and
weekend will lead to winds up to 40 MPH at times for higher
elevations, passes and gaps on Saturday, easing Saturday night.

&&

.AVIATION...
(06Z TAFS)
Issued at 1028 PM PDT Mon Jun 16 2025

Widespread VFR lasts into Tuesday night. Winds have reduced and are
expected to be mostly light to moderate through the night. Some
spotty cloud cover forms along the coast and Monterey Bay overnight,
but not enough to fill over any of the TAF sites. Light winds linger
into the late morning and early afternoon before moderate to gusty
winds return again. These winds look to reduce again into Tuesday
night as low cigs begin to build at HAF. Later that night, OAK
begins to fill with IFR CIGs as well.

Vicinity of SFO...VFR through the TAF period. Gusts have reduced but
winds remain moderate to breezy. Winds reduce further into early
Tuesday, but will become breezy into the late morning. Stronger and
gusty winds arrive mid Tuesday afternoon, peaking around 33 kts, but
reduce again into that night.

SFO Bridge Approach...Similar to SFO.

Monterey Bay Terminals...VFR through the TAF period. Winds look to
stay light through late Tuesday morning. Moderate west to northwest
winds arrive in the late morning across the Monterey Bay, with
gustier conditions affecting SNS into the mid afternoon. Winds
become light again into Tuesday night with lower CIGs arriving
shortly beyond the TAF period.&&

.MARINE...
(Tonight through next Sunday)
Issued at 1028 PM PDT Mon Jun 16 2025

Gusty northwest winds continue across most of the waters along
with moderate to rough seas. These conditions look to last
through the week and into the weekend with slightly increased
swell heights. Gale force gusts will occur near the coastal jet
regions of Point Reyes and Point Sur in the afternoons and look to
linger into the evenings for much of the forecast.

&&

.MARINE...
(Today through Sunday)
Issued at 305 AM PDT Tue Jun 17 2025

Gusty northwesterly winds and moderate to rough seas continue
across  most of the coastal waters. Winds will continue to
strengthen and  significant wave heights will build starting mid
week and will  remain elevated through early next week. The
coastal jet is forecast  to spread across the outer and inner
waters from Point Arena to  Point Reyes and outer waters from
Point Reyes to Pigeon Point with  Gale Warnings to go in effect
during the afternoon and overnight  hours for much of the forecast
period. Occasional gale force gusts  may spread into the outer
waters from Pigeon Point to Point Pinos  during the afternoon and
evening as the coastal jet widens and  strengthens.

&&

.MTR WATCHES/WARNINGS/ADVISORIES...
CA...None.
PZ...Small Craft Advisory from 3 PM this afternoon to 9 PM PDT this
     evening for Mry Bay.

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

     Gale Warning from 3 PM this afternoon to 9 PM PDT this evening
     for Pt Arena to Pt Reyes 0-10 nm.

     Small Craft Advisory until 3 PM PDT Wednesday for Pigeon Pt to
     Pt Pinos 0-10 nm-Pigeon Pt to Pt Pinos 10-60 NM-Pt Reyes to
     Pigeon Pt 0-10 nm.

     Gale Warning until 3 AM PDT Wednesday for Pt Pinos to Pt Piedras
     Blancas 0-10 nm.

     Small Craft Advisory until 9 PM PDT this evening for Pt Arena to
     Pt Reyes 10-60 NM.

     Gale Warning from 9 PM this evening to 3 PM PDT Wednesday for Pt
     Arena to Pt Reyes 10-60 NM.

&&

$$

SHORT TERM...JM
LONG TERM....JM
AVIATION...Kennedy
MARINE...Kennedy

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