Marine Weather Net

San Francisco Bay South of the Bay Bridge Marine Forecast


THIS AFTERNOON

W
WINDS
10 - 15
KNOTS

TONIGHT

W
WINDS
5 - 15
KNOTS

THU

W
WINDS
10 - 20
KNOTS

THU NIGHT

W
WINDS
10 - 20
KNOTS

The Marine Weather Forecast In Detail:
PZZ531 Forecast Issued: 246 PM PDT Wed May 05 2021

SMALL CRAFT ADVISORY IN EFFECT FROM THURSDAY MORNING THROUGH THURSDAY EVENING
This Afternoon...W Winds 10 To 15 Kt.
Tonight...W Winds 5 To 15 Kt.
Thu...W Winds 10 To 20 Kt With Gusts Up To 25 Kt.
Thu Night...W Winds 10 To 20 Kt With Gusts Up To 25 Kt.
Fri...W Winds 5 To 15 Kt.
Fri Night...W Winds 5 To 15 Kt.
Sat...W Winds 10 To 20 Kt With Gusts Up To 25 Kt.
Sun...W Winds 5 To 15 Kt.
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246 PM PDT Wed May 5 2021 .Synopsis for the Central California Coast and Bays Including the Monterey Bay...Greater Farallones...and Cordell Bank National Marine Sanctuaries... Northwest winds remain light to locally moderate for Wednesday with winds expected to increase along the coast and in the outer waters between Point Arena and Point Reyes. For Thursday, the coastal jets will strengthen and bring gusty winds to the south of all prominent coastal points. The forecast for Friday remains on track as widespread gusty northwest winds arrive with locally gale force gusts. Swells remain a pair of lighter northwest and southerly swells and dominated by wind driven waves.
Area Forecast Discussion
National Weather Service San Francisco Bay Area
456pm PDT Wednesday May 5 2021

Synopsis
A cooling trend will return near the coast as the marine layer redevelops. More widespread cooling across the interior follows on Thursday and Friday in response to an increase in onshore flow. Slight warming is then anticipated for the upcoming weekend, with continued dry conditions.

as of 01:38pm PDT Wednesday...Afternoon satellite imagery says it all - coastal stratus has pretty much stayed in place this afternoon. Cooler coastal stratus has resulted in cooler weather today. Latest 24 hour trend shows many places inland and near the coast cooler than 24 hours ago. Despite the cooler temperatures a few far interior locations will once again break 90 degrees.

The marine layer hugging the coast will move inland again tonight with some patchy fog and possibly some localized drizzle.

Subtle cooling observed today will become more widespread on Thursday, even inland areas, as a dry cold front moves through the region. Forecast models continue to show some precipitation with the front, but keep well north of the Bay Area. It's possible the fropa may briefly disrupt the stratus deck, but it looks like it will deepen by Friday morning. Friday morning could end up being a drizzle fest with a few rain gage tips.

Post frontal temperatures on Friday will be cool and a few below seasonal values. Highs will be in the 60s at the coast and 70s and 80s inland.

Warming trend develops this weekend as high pressure takes hold over the EPac. Night and morning clouds will be common with seasonable temperatures and inland afternoon sunshine.

Marine
as of 02:46pm PDT Wednesday...Northwest winds remain light to locally moderate for Wednesday with winds expected to increase along the coast and in the outer waters between Point Arena and Point Reyes. For Thursday, the coastal jets will strengthen and bring gusty winds to the south of all prominent coastal points. The forecast for Friday remains on track as widespread gusty northwest winds arrive with locally gale force gusts. Swells remain a pair of lighter northwest and southerly swells and dominated by wind driven waves.

.MTR WATCHES/WARNINGS/ADVISORIES... .Tngt...SCA...Pt Pinos to Pt Piedras Blancas 0-10 nm from 3 AM SCA...Pt Arena to Pt Reyes 0-10 nm SCA...SF Bay until 9 PM

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