289
FXUS66 KMTR 190000
AFDMTR

Area Forecast Discussion
National Weather Service San Francisco CA
500 PM PDT Sat May 18 2024

...New AVIATION, MARINE...

.SYNOPSIS...
Issued at 1255 PM PDT Sat May 18 2024

Typical summer-like pattern to persist through the weekend with
gradual warming trend for the first half of the upcoming week.
Nighttime low clouds will spread inland and then retreat back to the
coast by mid-to-late morning each day.

&&

.SHORT TERM...
(This evening through Sunday)
Issued at 1255 PM PDT Sat May 18 2024

Slightly cooler temperatures are expected this afternoon ranging from
the upper 50`s to mid 60`s at the coast to upper 60`s to mid 70`s
across the interior (a few spots may reach into the upper 70`s).
This is as a weak, dry frontal boundary moves across the region.
Tonight, expecting less in the way of drizzle however cannot be
ruled out in typically favored locations. Temperatures overnight
will range from the mid 40`s to mid 50`s.

In wake of today`s frontal passage, expecting tomorrow to be
slightly warmer across the interior as low clouds will likely be
quicker to dissipate. Thus, tomorrow we should see more upper 70`s
inland while cooler conditions prevail near the coast (upper 50`s to
mid 60`s).

&&

.LONG TERM...
(Sunday night through next Friday)
Issued at 1255 PM PDT Sat May 18 2024

Sunday night, we are expecting a greater potential for coastal
drizzle across the San Francisco Peninsula and coastal areas of the
Central Coast. A gradual warming trend is expected from Monday into
Wednesday as the region remains between a ridge out over the Pacific
and troughing to the east-northeast. Therefore, expecting more of
the interior to reach the lower 80`s by Tuesday which is forecast to
be the warmest day of the week. Meanwhile, low stratus will keep
conditions cooler at the coast.

Toward the latter half of the week, look for deeper troughing to
directly impact the region. This will bring temperatures back below
seasonal averages by Friday and Saturday. Dry conditions, other than
overnight coastal drizzle, are expected to prevail through the
forecast period.

&&

.AVIATION...
(00Z TAFS)
Issued at 500 PM PDT Sat May 18 2024

Pesky stratus is finally losing its grip on some terminals, but
not Monterey Bay. A solid feed continues over MRY and SNS. All
other terminals are VFR at the moment with breezy to gusty onshore
flow. For tonight, marine layer will move inland again, but much
less than last night. North Bay has a shot at some low cigs and
patchy fog developing overnight into mid morning Sunday.

Vicinity of SFO...Evening weather concern will be gusty onshore
winds potentially impacting runway config. Latest trends have
showed easing at SFO, but still gusty at OAK. Hopefully this
trend continues. VFR tonight and Sunday, but a few SCT clouds will
develop nearby.

SFO Bridge Approach...Similar to SFO.

Monterey Bay Terminals...Once again, despite a favored wind MRY
is holding on cig. The SW winds is allowing for pockets of
blue/BK, but once the sun sets any holes should fill back in. MVFR
to IFR overnight through early afternoon Sunday. MRY has a 20-30%
chc for fog too...so kept 5sm from previous taf.



&&

.MARINE...
(Tonight through next Thursday)
Issued at 451 PM PDT Sat May 18 2024

Northerly winds will become strong and gusty today and are
expected to last through most of the upcoming work week. Gale
force gusts will build in the northern waters today and are
expected to last through at least Monday. Gales will begin to
reach the more southerly zones towards later Sunday. Expect
hazardous conditions and steeper wind waves from these building
winds throughout the week.

&&

.MTR WATCHES/WARNINGS/ADVISORIES...
CA...None.
PZ...Small Craft Advisory until 3 AM PDT Sunday for Pt Arena to Pt
     Reyes 0-10 nm.

     Gale Warning from 3 AM Sunday to 3 AM PDT Monday for Pt Arena to
     Pt Reyes 0-10 nm.

     Small Craft Advisory from 9 AM Sunday to 3 AM PDT Monday for Pt
     Reyes to Pigeon Pt 0-10 nm.

     Small Craft Advisory from 3 PM Sunday to 3 AM PDT Monday for
     Pigeon Pt to Pt Pinos 0-10 nm-Pt Pinos to Pt Piedras
     Blancas 0-10 nm.

     Gale Warning until 3 AM PDT Monday for Pt Arena to Pt Reyes 10-
     60 NM.

     Small Craft Advisory from 9 PM this evening to 3 PM PDT Sunday
     for Pigeon Pt to Pt Pinos 10-60 NM.

     Gale Warning from 3 PM Sunday to 3 AM PDT Monday for Pigeon Pt
     to Pt Pinos 10-60 NM.

&&

$$

SHORT TERM...RGass
LONG TERM....RGass
AVIATION...MM
MARINE...AC

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