898
FXUS66 KMTR 252045
AFDMTR

Area Forecast Discussion
National Weather Service San Francisco CA
145 PM PDT Sat May 25 2024

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

.SYNOPSIS...
Issued at 1259 AM PDT Sat May 25 2024

Cool with abundant overnight stratus through the weekend. Warming
and drying trend set for next week with temperatures around
seasonal normal.

&&

.SHORT TERM...
Issued at 118 PM PDT Sat May 25 2024
(This evening through Sunday)

Another afternoon of lingering pesky stratus from the morning.
The lingering clouds are slowly thinning per satellite and have a
strato-cu look. Needless to say the clouds are impacting
temperatures across the interior with a few spot running behind
predicted max temps. We`ll leave forecast as is since there`s
still some daytime heating left and some inland sunshine is still
predicted. One thing that is similar to yesterday are the
stronger onshore winds. While not as strong as 24 hours ago,
still seeing some gusts up to 35 mph through the inland
gaps/passes.

Finishing out the weekend: The upper level trough that helped
support the deep/cool/moist marine layer will exit eastward.
Semi-zonal flow with building 500 mb heights and warming 850 mb
temps will build over the region. As a result, a more compressed
marine layer will develop tonight. Still cannot rule out patchy
fog or drizzle tonight, but it should be less than Saturday
morning. Temperatures on Sunday will warm on avg 3-8 degrees away
from the coast. Highs will be in the upper 50s to 60s coast and
70s to mid 80s. Onshore flow continues to ease, but gusty winds
through gaps/passes will continue.

&&

.LONG TERM...
Issued at 140 PM PDT Sat May 25 2024 (Sunday night through next
Friday)

The warming trend from Sunday will continue through much of next
week as high pressure nudging in from the S battles an upper
trough approaching from the N. As for sensible weather, pretty
quiet with night and morning clouds with inland daytime sunshine.
Should be noted the warming trend will pause briefly mid-week
before peaking next Friday with far interior locations reaching 90
degrees.

&&

.AVIATION...
(18Z TAFS)
Issued at 1032 AM PDT Sat May 25 2024

Satellite highlights a slow clearing of the broad spread of low
clouds across most terminals. A mix of VFR, MVFR, and IFR. most
terminals will become VFR between 19-21Z, with lower confidence on
clearing time for Monterey Bay terminals. Stratus will return
tonight with a chance that all terminals, except Monterey Bay will
remain as low as MVFR ceiling heights through the night until Sunday
morning. Onshore winds will become breezy this afternoon with
possible gust up to 25 knots through the valleys and gaps. Winds
return to moderate overnight.

Vicinity of SFO...MVFR ceilings with expected clearing time around
20-21Z. Onshore winds will remain breezy with gusts up to 25 kt this
afternoon before returning to moderate overnight. MVFR conditions
are expected to return overnight with timing a bit uncertain, but
models agree between 07-08Z.

SFO Bridge Approach... Similar to SFO.

Monterey Bay Terminals...IFR/MVFR conditions prevail with moderate
confidence of clearing to VFR near 21Z. Westerly/Northwesterly winds
will become breezy this afternoon before returning to relatively
moderate overnight. MVFR/IFR conditions are expected to return this
evening/early tonight.

&&

.MARINE...
(Today through Thursday)
Issued at 1032 AM PDT Sat May 25 2024

Fresh northwest breeze over the outer waters persists through the
weekend creating hazardous conditions for small crafts. Fresh to
strong northwest and onshore winds across the coastal waters and
bays during the afternoons by early to mid next week. Wave heights
beginning to increase mid-work week up to 11-13 feet. Otherwise
mostly quiet marine conditions through the forecast period.

&&

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

     Small Craft Advisory until 3 AM PDT Sunday for Pt Arena to Pt
     Reyes 0-10 nm.

     Small Craft Advisory from 3 PM to 9 PM PDT Sunday for Pt Arena
     to Pt Reyes 0-10 nm.

     Small Craft Advisory until 3 AM PDT Sunday for Pigeon Pt to Pt
     Pinos 0-10 nm-Pt Pinos to Pt Piedras Blancas 0-10 nm.

     Small Craft Advisory until 3 AM PDT Monday for Pt Arena to Pt
     Reyes 10-60 NM.

     Small Craft Advisory until 3 AM PDT Monday for Pigeon Pt to Pt
     Pinos 10-60 NM.

&&

$$

SHORT TERM...Behringer
LONG TERM....Behringer
AVIATION...SO
MARINE...SO

Visit us at www.weather.gov/sanfrancisco

Follow us on Facebook, Twitter, and YouTube at:
www.facebook.com/nwsbayarea
www.twitter.com/nwsbayarea
www.youtube.com/nwsbayarea