-- Discussion containing changed information from previous version are highlighted. --
178
FXUS66 KMTR 260822
AFDMTR

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

...New SYNOPSIS, SHORT TERM, LONG TERM...

.SYNOPSIS...
-- Changed Discussion --
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.
-- End Changed Discussion --

&&

.SHORT TERM...
-- Changed Discussion --
(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.
-- End Changed Discussion --

&&

.LONG TERM...
-- Changed Discussion --
(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.
-- End Changed Discussion --

&&

.AVIATION...
(06Z TAFS)
Issued at 1027 PM PDT Tue Jun 25 2024

The low chance-high impact threat for high-based convection has
ceased. Currently VFR at all terminals except the Monterey Bay
terminals of MRY and SNS. VFR through the TAF period for APC, LVK,
SJC, and STS. Overnight the Bay Area terminals of OAK and SFO will
deteriorate to low-end MVFR. Winds will remain onshore through the
TAF period.

Vicinity of SFO...Currently VFR with westerly flow. Winds will
prevail out of the west through the TAF period. A low-end MVFR
ceiling will impact the terminal overnight and scatter out by mid-
morning.

SFO Bridge Approach...Similar to SFO.

Monterey Bay Terminals...Currently IFR with westerly flow at MRY and
IFR with northwesterly flow at SNS. Winds will prevail out of the
west/northwest through the TAF period. VFR will prevail by tomorrow
afternoon with IFR stratus making an early return to the terminals
tomorrow evening.

&&

.MARINE...
-- Changed Discussion --
(Tonight through next Monday)
Issued at 1027 PM PDT Tue Jun 25 2024

Moderate to breezy northwesterly continue overnight. Stronger
northwesterly breezes arrive into Wednesday morning creating
hazardous conditions for small crafts across all the waters into
the weekend. Significant wave heights will continue to abate below
10 feet through the period.
-- End Changed Discussion --

&&

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

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

     Small Craft Advisory from 9 AM this morning to 9 PM PDT this
     evening for Pigeon Pt to Pt Pinos 0-10 nm.
-- End Changed Discussion --

&&

$$

SHORT TERM...JM
LONG TERM....JM
AVIATION...Sarment
MARINE...SO

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