Angwin, California 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

019
FXUS66 KMTR 080751
AFDMTR

Area Forecast Discussion
National Weather Service San Francisco CA
1251 AM PDT Sun Jun 8 2025

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

.SYNOPSIS...
Issued at 1251 AM PDT Sun Jun 8 2025

No significant weather issues with dry conditions and temperatures
generally near seasonal averages through the extended period. A
slight cooling trend arrives for the end of next week.

&&

.SHORT TERM...
(Today and tonight)
Issued at 1251 AM PDT Sun Jun 8 2025

An upper level ridge continues to move into the Pacific Northwest
and British Columbia, while an cutoff low to the west of
California maintains the marine layer at around 1500 feet deep.
Latest satellite imagery shows stratus clouds blanketing the coast
and flowing into the inland valleys, with a cloudy morning
expected for all but the highest elevations and the most interior
valleys in the East Bay and Central Coast. Morning lows hover in
the lower to middle 50s for the lower elevations, up to the lower
60s in the higher elevations. In terms of sensible weather, today
will be remarkably similar to yesterday with clearing skies this
afternoon away from the immediate coast, a robust onshore wind
this afternoon and evening, and seasonably warm highs in the upper
70s to the middle 80s inland, up to the middle 90s in the warmest
spots, and cool coastal highs in the upper 50s to the middle 60s.


&&

.LONG TERM...
(Monday through Saturday)
Issued at 1251 AM PDT Sun Jun 8 2025

Over the next few days, the upper level ridge will erode while the
cutoff low dissipates, leading to a slight compression in the marine
layer, but otherwise leaving the weather pattern remarkably stable
through the middle of the week. By Thursday, a trough forming in the
eastern Pacific will move into the West Coast, leading to a slight
cooling trend across the region towards the end of the 7-day
outlook. Inland high temperatures will drop slightly below the
seasonal averages, around the middle 70s to the lower 80s, with
coastal temperatures remaining stable in the upper 50s to middle
60s.

&&

.AVIATION...
(06Z TAFS)
Issued at 938 PM PDT Sat Jun 7 2025

Onshore winds will carry coastal stratus /MVFR-IFR/ inland tonight
and Sunday morning. Stratus mixes out to near the immediate coastline
late Sunday morning and afternoon. Onshore winds prevail during the
06z TAFs.

Vicinity of SFO...Tempo MVFR in stratus 06z-08z then IFR in stratus
for the remainder of tonight and Sunday morning. Stratus will mix
out by late Sunday morning. West to northwest wind 5 to 15 knots late
tonight and Sunday morning. West wind near 15 knots Sunday afternoon
and evening. Stratus /IFR/ returns mid to late Sunday evening.

SFO Bridge Approach...Similar to SFO.

Monterey Bay Terminals...Stratus /MVFR-IFR/ moving inland overnight.
Stratus /MVFR/ late Sunday morning and afternoon. Evening onshore
winds 5 to 15 knots decreasing to near 5 knots tonight and increasing
to 10 to 15 knots Sunday afternoon and early evening. Stratus /IFR/
returns early Sunday evening and night.

&&

.MARINE...
(Tonight through next Friday)
Issued at 900 PM PDT Sat Jun 7 2025

Mainly light winds will continue across the coastal waters with
moderate sea heights. A strong westerly breeze will develop across
the bays Sunday afternoon and persist through the evening hours.
A low amplitude, long period southwesterly swell arrives Monday
and will cause waves to break in deeper water. Significant wave
heights will remain moderate until a strong NW breeze and rough
seas arrive mid-week.

&&

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

     Small Craft Advisory from 3 PM this afternoon to 3 AM PDT Monday
     for Pt Pinos to Pt Piedras Blancas 0-10 nm.

&&

$$

SHORT TERM...DialH
LONG TERM....DialH
AVIATION...Canepa
MARINE...Canepa

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