Area Forecast Discussion
Issued by NWS San Francisco Bay Area, CA
FXUS66 KMTR 271153
Area Forecast Discussion
National Weather Service San Francisco Bay Area
453 AM PDT SAT AUG 27 2016
.SYNOPSIS...Very little change is expected through at least the
middle of next week. Temperatures will be near or slightly below
normal through the period. Areas of night and morning low clouds
will give way to sunny skies by midday for inland areas. Most
coastal areas will continue to see widespread low cloud cover
persist through the daytime hours.
.DISCUSSION...As of 3:00 AM PDT Saturday...Broken record forecast
as we approach the final week of August. After countless days
of widespread morning clouds with mostly mild daytime
temperatures, look for little change at least through the middle
of next week. At the surface the flow continues to be moderately
onshore while the marine layer is still in excess of 2,500 feet
these two factors will produce more cooler than normal readings.
A ridge of high pressure will start to build into our region over
the next several days which will help to bring some warming
especially for inland regions. Spots will away from the coast will
increase 3 to 7 degrees with widespread upper 70s to upper 80s
forecast. Coastal areas will generally be in the 60s to lower 70s.
Hot weather will be confined to southern Monterey and San Benito
counties with 90s to lower 100s anticipated. Smoke is expected to
mostly stay confined south of the San Francisco Bay Region and Santa
Longer range models flip to a trough pattern for the second half
of next week and keep that in place going into the following week.
Models are in disagreement with the depth of the trough however
there is general agreement that we will see another drop in
temperatures which could last through the first week in September.
The bulk of any rain should remain to our north.
.AVIATION...as of 4:45 AM PDT Saturday...Stratus extends well into
the SFO Bay Area this morning with high bases and a 2500 foot
marine layer. Weak winds around the district will result in slow
clearing of the stratus. But by late morning the stratus will be
high enough to mix out and the afternoon will be VFR.
Vicinity of KSFO...MVFR cigs through 19Z. This is in agreement
with the SFO Stratus models. Bases expected to remain above 1500
SFO Bridge Approach...Similar to KSFO.
Monterey Bay Terminals...MVFR through 19Z.
.MARINE...as of 4:45 AM PDT Saturday...A generally weak surface
pressure gradient across the coastal waters will maintain light
winds and seas through the weekend. Winds will increase early next
week as high pressure strengthens off the southern and central
California coast. A mixed short period northwest swell and a long
period southerly swell will continue to impact the coastal waters.
.Tday...SCA...SF Bay from 2 PM
PUBLIC FORECAST: Bell
AVIATION: W Pi
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