Menlo Park, California 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

591
FXUS66 KMTR 212125
AFDMTR

Area Forecast Discussion
National Weather Service San Francisco CA
225 PM PDT Sat Jun 21 2025

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

.SYNOPSIS...
Issued at 219 PM PDT Sat Jun 21 2025

Fire concerns linger for today and tonight, but ease as winds
reduce into Sunday. Expect a modest warming trend for the more
inland areas into the next work week along with a return of
coastal clouds and fog.

&&

.SHORT TERM...
(This evening through Sunday)
Issued at 219 PM PDT Sat Jun 21 2025

Winds are building into the afternoon. However, the updated forecast
is showing that the widespread wides are going to be weaker overall
than the winds experienced yesterday, with only a few exceptions
along the immediate coast. Temperatures are mostly around average
today as the onshore flow continues and today looks to be the
coolest of the next seven. Winds over land reduce into the evening
and early tonight, but will stay gusty within the marine
environment.

The reduction of winds tonight marks the end of our breezy to gusty
pattern and pulls the interior areas out of near critical fire
danger. However, a lot of the finer fire fuels (grasses and small
plants) have dried and cured in the last few days of dry, sunny and
windy conditions, so we urge folks to stay fire weather aware.

&&

.LONG TERM...
(Sunday night through next Friday)
Issued at 219 PM PDT Sat Jun 21 2025

Winds have been the big focus of the forecast over the last few
days, but as the upper level pattern changes, the breezy and gusty
conditions are mostly going to be focused over the marine
environment into the next work week.

Said change in the upper level pattern with feature the upper level
pushing east and slightly south. This will reduce onshore flow into
the mid week and weaken winds across the region. Temperatures will
increase in the far interior, while the coast and slightly inland
areas stay mostly unchanged as marine stratus and fog begin to
reestablish in the calmer conditions. As of the current forecast,
Thursday looks to be the warmest day of the forecast as the more
interior valleys settle into the 90s and some of the warmest of the
warm hitting the 100 degree mark, but this won`t be widespread and
the coastal and slightly inland areas remain in the 60s and 70s.

Something to note, the mid-week model agreement is fair with the
current official forecast, but some models hint at the trough pushing
farther south and propagate in such a way that could introduce more
offshore flow. This will still result in the midweek warm up, but
the drier flow could limit the marine layer and coastal cloud cover,
making for a much warmer days for the coast. The forecasting team
will be keeping an eye on how this continues to develop over the
next few forecast updates, be sure to keep checking back in!


&&

.AVIATION...
(18Z TAFS)
Issued at 1012 AM PDT Sat Jun 21 2025

Generally VFR conditions continue through the day. Strong northwest
gusts develop this afternoon and continue through early Sunday
morning, before diminishing through Sunday morning past the end of
the 24-hour TAF period. Some high resolution model data has stratus
returning to the immediate coast tonight into Sunday morning, but
this is a low confidence forecast and the HAF and MRY TAFs remain
VFR throughout.

Vicinity of SFO... VFR through the TAF period. Strong northwest
gusts will develop later today, with moderate confidence that the
gusts reach 35 kt sometime today. Greatest probability for gusts
reaching 35 kt will be sometime between 22 and 03Z. Strong gusts
will abate overnight, before gusts around 25 kt develop Sunday
afternoon.

SFO Bridge Approach... Similar to SFO.

Monterey Bay Terminals... VFR through the day with strong northwest
gusts developing this afternoon. Winds diminish late this evening
through the overnight period with a low confidence for stratus at
MRY. Northwest winds will redevelop late Sunday morning and
afternoon.

&&

.MARINE...
(Tonight through next Thursday)
Issued at 219 PM PDT Sat Jun 21 2025

Widespread hazardous marine conditions persist over the waters
through early Sunday morning, with near-gale north breezes,
severe gale force gusts, and rough to very rough seas. The bays
will be more sheltered, but will still experience fresh to strong
northwest breezes. Winds will subside on Sunday, with fresh to
strong northwest gusts and moderate to rough seas through the end
of the next work week.

&&

.FIRE WEATHER...
Issued at 221 PM PDT Sat Jun 21 2025

Elevated to near critical fire weather conditions continue today
across the interior Central Coast, East Bay Hills, and interior
North Bay as another dry day with moderate to poor RH recovery is
expected for interior locations and areas of higher elevation,
especially for those above the marine layer. Winds will be breezy
to gusty as well, peaking around 35 mph, perhaps locally higher
at exposed elevations and wind prone gaps. Breezy to gusty winds
look to hold through Saturday night. There should be some
improvement in humidity into Sunday morning, especially if the
marine layer is able to deepen. Widespread critical fire weather
conditions are not expected within the district today, although
the fire weather threat will increase once again for areas closer
to the Central Valley. The fire weather threat will continue to
diminish Sunday into the early part of next week with the gusty
winds further relaxing, although humidity values in the interior
will be slow to rise.

&&

.MTR WATCHES/WARNINGS/ADVISORIES...
CA...None.
PZ...Small Craft Advisory until 3 AM PDT Sunday for Mry Bay-SF Bay N
     of Bay Bridge.

     Small Craft Advisory from 3 PM to 9 PM PDT Sunday for Mry Bay.

     Gale Warning until 3 AM PDT Sunday for Pigeon Pt to Pt Pinos 0-
     10 nm-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 9 AM PDT Sunday for Pigeon Pt to Pt Pinos
10-as well60 NM.

&&

$$

SHORT TERM...Murdock
LONG TERM....Murdock
AVIATION...DialH
MARINE...DialH

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