Area Forecast Discussion
Issued by NWS San Francisco Bay Area, CA

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949
FXUS66 KMTR 271737
AFDMTR

Area Forecast Discussion
National Weather Service San Francisco Bay Area
1037 AM PDT Sat May 27 2017

.SYNOPSIS...Dry with seasonable temperatures expected for much of
the holiday weekend. The next trough and associated cooling trend
arrives Tuesday and Wednesday with long range trends indicating a
dry and benign weather pattern.

&&

.DISCUSSION...as of 9:21 AM PDT Saturday...Satellite imagery
shows low clouds along the coast, but some clearing has occurred
over Santa Cruz county as well as coastal Monterey county south of
the Monterey Peninsula. Expect warmer temperatures today across
the district mainly because of additional sunshine compared to the
cloudy conditions we saw on Friday. Highs today are forecast to
be in the 60s and 70s, with warmest inland areas possibly getting
into the lower 80s. Additional warming is expected through the
remainder of the holiday weekend as an upper ridge moves across
the state.

High pressure aloft will gradually weaken as an upper level
trough approaches the coast by Tuesday. This will bring cooler
temperatures to the area from Tuesday through Thursday with
increased marine clouds and onshore flow. High pressure aloft to
rebuild slightly by the end of the week for warmer temperatures.

&&

.AVIATION...As of 10:35 AM PDT Saturday...Satellite shows the low
clouds beginning to thin out and expect the through mid-day.
Expect VFR conditions for the early afternoon with generally light
winds (though could be a bit stronger along the coast). Cloud
cover will increase again by evening and overnight with ceilings
transitioning back to MVFR/IFR. Expect ceilings to be lower
tomorrow morning as subsidence aloft aids to compressing the
marine layer.

Vicinity of KSFO...Skies are beginning to transition over the
terminal with the latest obs in the last 15 minutes going from BKN
to SCT. VFR conditions expected through the evening with west
winds up to 15 to 20 kt. Low clouds will return overnight and back
to MVFR ceilings.

SFO Bridge Approach...Similar to KSFO.

Monterey Bay Terminals...Low clouds continue to hang over KMRY and
KSNS this morning, though expect them to become SCT/FEW within the
next few hours. Onshore winds 10 to 15 kt expected this afternoon
could become a bit gusty. Clouds return overnight with lower
ceilings expected than this morning.

&&

.MARINE...as of 10:24 AM PDT Saturday...Light west winds this
morning will increase and become northwest through the afternoon
and continue through the Memorial Day weekend. The swell train
will be generally 5 foot or less through the forecast period so
wind waves will dominate the sea state.

&&

.MTR WATCHES/WARNINGS/ADVISORIES...
     .Tday...SCA...Pt Pinos to Pt Piedras Blancas 0-10 nm from 3 PM
             SCA...Mry Bay from 3 PM

&&

$$

PUBLIC FORECAST: Sims
AVIATION: Rowe
MARINE: Rowe


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