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

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FXUS66 KMTR 260012
AFDMTR

Area Forecast Discussion
National Weather Service San Francisco Bay Area
512 PM PDT Sun Jun 25 2017

.SYNOPSIS...Look for continued cooling inland through Monday as
the ridge of high pressure that had been overhead continues to
progress to the east. Also areas of night and morning low clouds
and fog followed by sunny afternoons can be expected. Modest
warming is expected during the second half of the week, however
highs will fall well short of the recent heatwave.

&&

.DISCUSSION...As of 2:00 PM PDT Sunday...As expected temperatures
are running cooler than yesterday especially for inland
locations. Overall looking at a drop of 4 to 9 degrees away from
the coast with temperatures close to Saturday`s values.
Synoptically the strong high pressure ridge aloft has continued to
progress to the east while a more pronounced onshore flow is
setting up. Look for a quick return of the clouds this evening
along with patchy drizzle.

The ridge will continue to move to the east on Monday while 850 MB
temperatures drop another 2C down to the 19-21C range. Highs end
up being another 2 to 5 degrees cooler in most locations -- 70s to
mid 80s inland with mostly 60s at the coast. The only real
exception will be far southern Monterey and San Bentio counties
where highs will still reach the 90s. Conditions on Tuesday will
be similar.

A ridge of high pressure will attempt to rebuild into our region
starting Wednesday which will help to increase temperatures a bit,
however values will stay well below the very high numbers we had
recently. Generally look for 60s to lower 70s at the coast with
mid 70s to near 90 inland.

Longer range guidance through July 9th favors dry conditions with
temperatures near to a bit above normal.
&&

.AVIATION...As of 5:12 PM PDT Sunday...The marine layer is
1800-2000 feet deep and likely to deepen tonight and Monday as
lower level cooling develops and persists. Onshore winds will
bring in stratus ceilings tonight with clearing back to the
coastline Monday.

Vicinity of KSFO...MVFR cig forecast this evening into Monday
morning with IFR 08z-12z time-frame Monday morning.

SFO Bridge Approach...Similar to KSFO.

Monterey Bay Terminals...IFR cigs develop this evening. Clearing
returns 16z-17z Monday.

&&

.MARINE...as of 4:50 PM PDT Sunday...High pressure off the West
Coast will maintain northerly winds over the coastal waters
through the coming week. Winds will be locally stronger along the
immediate coast. Seas will be small with a dominant southerly
swell.

&&

.MTR WATCHES/WARNINGS/ADVISORIES...
     .Tngt...SCA...SF Bay until 9 PM
             SCA...Pigeon Pt to Pt Pinos 0-10 nm until 9 PM
             SCA...Pt Pinos to Pt Piedras Blancas 0-10 nm

&&

$$

PUBLIC FORECAST: Bell
AVIATION: Canepa
MARINE: Sims


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