Sunol, California 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

119
FXUS66 KMTR 091024
AFDMTR

Area Forecast Discussion
National Weather Service San Francisco CA
324 AM PDT Wed Apr 9 2025

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

.SYNOPSIS...
Issued at 323 AM PDT Wed Apr 9 2025

A ridge of high pressure across the west coast will result in mostly
sunny skies, above normal temperatures and light winds for the
second half of the work week, with minor HeatRisk concerns in the
afternoon.

&&

.SHORT TERM...
(Today and tonight)
Issued at 323 AM PDT Wed Apr 9 2025

Upper level ridging will continue to gradually amplify today,
steering high cirrus clouds to our north. The mostly sunny skies,
light winds and above normal temperatures will result in beautiful
weather area wide today. As the ridge axis shifts farther inland
tonight, a return of weak onshore flow and a weak marine layer will
bring a return to some stratus development along the coast tonight
into Thursday morning. There is minor HeatRisk associated with the
warm up the next few days, with no other impactful weather concerns
through the extended forecast.

&&

.LONG TERM...
(Thursday through Tuesday)
Issued at 323 AM PDT Wed Apr 9 2025

As the upper ridging pattern shifts farther inland a developing
trough in the Gulf of Alaska will struggle to dig far enough south
to influence weather around our area. The lower H50 heights and weak
backdoor cold front pushing south from the troughing to our north
will cool temperatures closer to normal for the weekend and the
remainder of the extended forecast. Expect dry conditions across our
whole area through the extended forecast with the exception of any
drizzle along the coast from weak marine layer development.

&&

.AVIATION...
(06Z TAFS)
Issued at 946 PM PDT Tue Apr 8 2025

WHile the rest of the TAF sites stay VFR, HAF and STS will see CIGS
in the late night and early morning, with some fog as well at STS.
Winds become weak into the night with most sites becoming variable
due to more localized effects.  CIGs and fog erodes into the mid
morning on Wednesday, leading to widespread VFR. Moderate west winds
will be slow to build into Wednesday, arriving in the late morning
and afternoon. Winds reduce again that evening and into the night.
CIGs build along the coast into the early night, affecting HAF, and
look to slowly move inland early Thursday morning.

Vicinity of SFO...VFR lasts through early Thursday. winds have
reduced and look to stay moderate through much of the night. These
winds become light and variable for early Wednesday morning. Expect
west winds to build again into Wednesday afternoon before reducing
again into that night. IFR CIGs arrive into early Thursday morning
along with a slight increase in westerly winds.

SFO Bridge Approach...IFR CIGs build slightly later than SFO into
Thursday morning.

Monterey Bay Terminals...VFR through the TAF Period. Light winds
look to last through the night and into Wednesday afternoon. Low-
level cloud cover fills over the Monterey Bay itself in the late
night but fails to make it over the terminals. Expect cloud cover to
thin by the mid morning, with moderate westerly winds building that
afternoon. These winds last into the mid to late evening before
becoming light again.

&&

.MARINE...
(Today through Monday)
Issued at 323 AM PDT Wed Apr 9 2025

Breezy winds continue today for areas south of Point Sur. Expect
a gradual improvement of the sea state as swell heights subside
through midweek. Winds increase late this week and a larger swell
will rebuild this weekend.

&&

.MTR WATCHES/WARNINGS/ADVISORIES...
CA...None.
PZ...Small Craft Advisory from 9 AM to 3 PM PDT Thursday for Pt Pinos
     to Pt Piedras Blancas 0-10 nm.

&&

$$

SHORT TERM...JM
LONG TERM....JM
AVIATION...Canepa
MARINE...Canepa

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