126
FXUS66 KMTR 261850
AFDMTR

Area Forecast Discussion
National Weather Service San Francisco CA
1150 AM PDT Wed Jun 26 2024

...New AVIATION, MARINE...

.SYNOPSIS...
Issued at 121 AM PDT Wed Jun 26 2024

A cooling trend begins today with temperatures mostly at, or
slightly below normal for this time of year. Thursday will see
temperatures drop another few degrees for most locations, especially
inland. A warmup looks likely for the beginning of next week, when a
pattern change results in upper level ridging across our region.

&&

.SHORT TERM...
(Today and tonight)
Issued at 121 AM PDT Wed Jun 26 2024

Low stratus has begun to edge farther inland, with further intrusion
into the Salinas Valley in the Central Coast, East Bay, and the
North Bay vallies of Petaluma, Sonoma and Napa. Some patchy fog can
be expected near the coast in southern Santa Cruz county early this
morning as well. The low clouds will persist through late this
morning/early afternoon. Breezy winds can be expected this afternoon
as a trough axis approaches from the west. Today is the beginning of
a pleasant cool down with temperatures mostly at or slightly below
normal. Thursday will see temperatures drop a few more degrees,
especially further inland as the trough axis shifts east across our
area, with decreasing H50 heights and thicknesses.

&&

.LONG TERM...
(Thursday through Tuesday)
Issued at 121 AM PDT Wed Jun 26 2024

Temperatures at or slightly below normal will persist through the
end of the work week into the weekend. A low amplitude progressive
ridge will be overhead on Friday with little impact on temperatures.
A sharpening trough moving onshore will keep high temperatures
similar Saturday and Sunday. Once the aforementioned trough shifts
east of our area Sunday night, a ridging pattern will set in for the
beginning of next week. Inland temperatures will jump 5-10 degrees
from Sunday to Monday, with the warmer temperatures expected to
persist through the remainder of the extended forecast and beyond.

&&

.AVIATION...
(18Z TAFS)
Issued at 1150 AM PDT Wed Jun 26 2024

Lower clouds are lingering around the bays, but are expected to
erode this afternoon leading to widespread VFR. Winds increase into
the afternoon with strong and gusty winds at SFO and along the
coast, while other areas stay moderate to breezy. Winds reduce into
the evening and early night as IFR/MVFR CIGs move over the coast and
Monterey Bay terminals. Winds aloft in the North Bay remain strong
for the first part of the night, leading to LLWS concerns. CIGs fill
around the SF Bay early Thursday morning with cloud cover region-
wide expected to erode in the late morning leading to widespread VFR
Thursday afternoon with another round of breezy winds.


Vicinity of SFO...VFR lasts into early Thursday morning. Winds
increase this afternoon with gusts peaking around 33 kts. These
winds last into the night, reducing, but staying breezy for much of
the night. MVFR CIGs fill over the SF Bay early Thursday morning as
winds become moderate. CIGs erode into late Thursday morning with
breezy to gusty winds building that afternoon.

SFO Bridge Approach...Similar to SFO.

Monterey Bay Terminals...VFR lasts into the evening. Moderate to
breezy westerly winds build this afternoon, with slightly stronger
winds expected at the immediate coast. Winds reduce into the evening
as IFR CIGS move inland and fill over MRY, with SNS filling later
into the night. CIGS erode in the late morning on Thursday as
moderate to breezy winds arrive.
&&

.MARINE...
(Today through Monday)
Issued at 1150 AM PDT Wed Jun 26 2024

  Strong northwesterly breezes with gusts approaching gale force
will build this afternoon and last through for most of the
period. Wind is the main driver for the Small Craft Advisories as
significant wave heights generally remain below 10 feet through
the period.

&&

.MTR WATCHES/WARNINGS/ADVISORIES...
CA...None.
PZ...Small Craft Advisory from 3 PM this afternoon to 9 PM PDT this
     evening for Mry Bay.

     Small Craft Advisory from 3 PM to 9 PM PDT Thursday for Mry Bay.

     Small Craft Advisory until 9 PM PDT Thursday for Pigeon Pt to Pt
     Pinos 10-60 NM-Pt Arena to Pt Reyes 0-10 nm-Pt Pinos to Pt
     Piedras Blancas 0-10 nm.

     Small Craft Advisory from 3 PM this afternoon to 9 PM PDT
     Thursday for Pt Arena to Pt Reyes 10-60 NM-Pt Reyes to
     Pigeon Pt 0-10 nm.

     Small Craft Advisory until 3 AM PDT Thursday for Pigeon Pt to Pt
     Pinos 0-10 nm.

     Small Craft Advisory from 9 AM to 9 PM PDT Thursday for Pigeon
     Pt to Pt Pinos 0-10 nm.

&&

$$

SHORT TERM...JM
LONG TERM....JM
AVIATION...Murdock
MARINE...Murdock

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