Cambrian Park, California 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

528
FXUS66 KMTR 260856
AFDMTR

Area Forecast Discussion
National Weather Service San Francisco CA
156 AM PDT Sat Jul 26 2025

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

.KEY MESSAGES...
Updated at 153 AM PDT Sat Jul 26 2025

 - Below to near seasonal normal temperatures through Friday.

&&

.SHORT TERM...
Issued at 153 AM PDT Sat Jul 26 2025
(Today and tonight)

The July 26th 00Z sounding revealed an 850 millibar temperature of
17.15 degrees Celsius, just above the 25th percentile of 17.1
degrees Celsius for this date and time. San Jose (SJCthr) tied its
daily (July 25th) low maximum temperature record of 73 degrees
Fahrenheit set in 1924. Napa State Hospital (NSHC1) is forecast to
tie its daily (July 26th) low maximum temperature record of 70
degrees set in 1935. Needless to say widespread below normal
temperatures, a relatively deep marine layer, and drizzle will
continue today. The upper-level trough that has been the dictator of
our recent weather brings a low probability (5%) high-impact
scenario of elevated convection. The essential ingredients for
thunderstorms of lift, instability, and moisture are there, but they
are not impressive. With very little change to the pattern, it is
expected that convection will continue to present itself as it
has the previous two days, remaining confined to the north and
east of our region. If a thunderstorm were to develop, the primary
hazards will be dependent on if they are wet (rainfall greater
than or equal to 0.10 inch) or dry (rainfall less than 0.10 inch).
Wet thunderstorm hazards will be locally heavy rainfall and gusty
outflows while dry thunderstorm hazards will be new fire starts
and gusty outflows.

&&

.LONG TERM...
Issued at 153 AM PDT Sat Jul 26 2025
(Sunday through Friday)

Global ensemble clusters are in agreement of heights rising through
Tuesday as broad high pressure expands westward and a longwave ridge
is able to form over the Intermountain West. This will result in a
slight warming trend with temperatures returning to near normal for
valleys and terrain above the marine layer. While it is likely that
heights will begin to fall Wednesday as an embedded shortwave from
the upper-level low in the Gulf of Alaska traverses the region,
sensible weather will fluctuate very little through Friday with the
coast remaining cool, the interior remaining mild, and onshore flow
prevailing.

&&

.AVIATION...
(06Z TAFS)
Issued at 1000 PM PDT Fri Jul 25 2025

MVFR-IFR stratus developing from the coast into the Bay Area and
Central Coast, continuing to redevelop inland through the night.
Stratus retreats to the immediate coast through Saturday morning
with a low to medium probability that stratus lingers through the
Golden Gate and impacts SFO and OAK through the day. Breezy onshore
flow continues to diminish through the next few hours and returns
Saturday afternoon and evening.

Vicinity of SFO... MVFR-IFR stratus through Saturday, with low
confidence in the clearing time and a distinct possibility that the
edge of the stratus will lie just to the north of the terminal.
Probabilities that stratus lingers through Saturday hover around 20-
35% at this time. Stratus returns to the terminal late Saturday
afternoon or evening. Light west breezes continue through the
night before breezy flow resumes Saturday afternoon.

SFO Bridge Approach... Similar to SFO.

Monterey Bay Terminals... IFR ceilings through the night with some
LIFR possible at the coast. Stratus clears through Saturday
afternoon at SNS, with moderate confidence for clearing at MRY
sometime in the afternoon, before the stratus returns early in the
evening. Light winds continue overnight, before onshore winds return
Saturday afternoon.

&&

.MARINE...
(Tonight through next Thursday)
Issued at 856 PM PDT Fri Jul 25 2025

Moderate northwest breezes and moderate seas prevail through
Tuesday. Low clouds with drizzle are expected through Saturday
morning.

&&

.MTR WATCHES/WARNINGS/ADVISORIES...
CA...None.
PZ...None.
&&

$$

SHORT TERM...Sarment
LONG TERM....Sarment
AVIATION...DialH
MARINE...DialH

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