Sunrise 5:51 AM   Sunset 8:21 PM Moonrise 8:04 PM   Moonset 4:37 AM

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PZZ530 San Pablo Bay, Suisun Bay, The West Delta And The San Francisco Bay North Of The Bay Bridge- 838 Am Pdt Thu May 23 2024
Today - W wind 5 to 10 kt, rising to 10 to 15 kt late. Waves around 2 ft or less. Tonight - SW wind 10 to 15 kt. Waves around 2 ft or less. Fri - W wind 10 to 15 kt. Waves around 2 ft or less. Fri night - W wind 15 to 20 kt, easing to 10 to 15 kt after midnight. Waves around 2 ft or less. Sat - W wind 10 to 15 kt, becoming sw 5 to 10 kt in the afternoon. Waves around 2 ft or less. Sat night - SW wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Waves around 2 ft or less. Sun - SW wind 5 to 10 kt. Waves around 2 ft or less. Sun night - SW wind 5 to 10 kt. Waves around 2 ft or less. Memorial day - SW wind 5 to 10 kt. Waves around 2 ft or less. Mon night - SW wind 5 to 10 kt. Waves around 2 ft or less.

PZZ500 838 Am Pdt Thu May 23 2024
Synopsis for the central california coast and bays including the Monterey bay - Greater farallones - .and cordell bank national marine sanctuaries - .
building surface high pressure over the eastern pacific ocean will allow for strong northwesterly winds to prevail for one more day today, with gale force gusts across the outer coastal waters. Expect hazardous conditions and steeper wind waves as a result. Northwesterly winds diminish and significant wave heights abate heading into the weekend as surface high pressure over the eastern pacific ocean weakens and retrogrades to the west and a troughing pattern evolves.

FXUS66 KMTR 231731 AFDMTR

Area Forecast Discussion National Weather Service San Francisco CA 1031 AM PDT Thu May 23 2024

New AVIATION, MARINE

SYNOPSIS
Issued at 1225 PM PDT Wed May 22 2024

Summer-like pattern to persist through Thursday. Temperatures are forecast to dip below seasonal averages this weekend as an upper level trough impacts the region. Temperatures begin to warm Sunday through the next week.

UPDATE
Issued at 809 AM PDT Thu May 23 2024

Satellite shows mostly clear skies over our region with some patchy clouds near Monterey Bay and Salinas. A weak eddy has formed over Monterey Bay that will be circulating some of the clouds throughout the morning, but that area will remain somewhat clear skies. Since today is not a typical "May Grey" morning, definitely take a moment to enjoy some of that sunshine, especially if you're near the coast! No changes were made to the forecast.

SHORT TERM
(Today and tonight)
Issued at 250 AM PDT Thu May 23 2024

Patchy stratus is currently located along the Santa Cruz coastline and extending into portions of Monterey, San Benito, and Santa Clara counties. Stratus coverage may extend a bit farther into Monterey Bay and up the San Mateo coastline but is not expected to expand too far inland. The Fort Ord Profiler shows the top of the marine layer around 1600-1800 feet which is fairly comparable to the depth of the marine layer yesterday. Given persistence, this helps increase confidence that any stratus that develops will stay along the coastline and portions of the Monterey Bay. Overcast conditions are expected to clear out by late morning/early afternoon with some potential for scattered clouds to persist throughout the remainder of the day. Widespread stratus coverage will return fairly early in the evening throughout much of the Bay Area and Central Coast as onshore flow increases and a weak surface low pressure system approaches the coast.

As broad upper level troughing continues and offshore flow weakens, temperatures will continue to cool Thursday with high temperatures on average 1 to 3 degrees cooler than those observed on Wednesday. Across the interior, temperatures will be seasonal with highs generally in the 70s to low 80s but, along the coast, below average temperatures in the mid 50s to low 60s persist. Minor heat risk continues for portions of the Bay Area and Salinas Valley.
Individuals who are extremely sensitive to heat should remember to stay hydrated while outdoors and to take breaks as needed. Slightly drier RH values persist inland during the day on Thursday before higher RH values and increased moisture return inland with this next weak system.

LONG TERM
(Friday through Wednesday)
Issued at 250 AM PDT Thu May 23 2024

A weak low pressure system will move inland Friday into Saturday and bring widespread below average temperatures, increased stratus coverage, and some potential for light drizzle in coastal areas.
Most inland locations will see temperatures 5 to 10 degrees below average but some may see more significant drops with high temperatures 10 to 15 degrees below average. High temperatures throughout the interior will be in the 60s with a few areas of elevated terrain potentially reaching the low 70s. Meanwhile on the coast, temperatures will struggle to make it out of the upper 50s and into the lower 60s Friday and Saturday. Ensemble and hi-res guidance continue to suggest light drizzle, particularly in the Monterey Bay region, is likely along the coast with non-impactful accumulations typically less than 0.1". By Monday, shortwave ridging will build over the West Coast with inland temperatures warming into the upper 70s to low 80s and coastal temperatures into the upper 50s to mid 60s.

If you are not a fan of the cooler weather we have been having, you are in luck! Updated CPC graphics show above average temperatures will become increasingly likely by early June. During this same time frame, long term guidance is showing upper level ridging building and, for the most part, lingering over the West Coast. Given that this scenario is still a ways out, we will have to wait and see how guidance continues to trend and how the forecast evolves.

AVIATION
(18Z TAFS)
Issued at 1024 AM PDT Thu May 23 2024

Currently VFR at all terminals with sparse stratus coverage in the Monterey Bay and along the Big Sur Coast. Moderate confidence of VFR through the TAF period at all terminals with the exception of the Monterey Bay terminals of MRY and SNS. Low clouds in the range of FL015-FL035 could impact the terminals of LVK, OAK, SFO, and SJC overnight; however, confidence was not high enough at this time to include as a definitive ceiling.

Vicinity of SFO...Currently VFR with breezy northwesterly flow. VFR through the TAF period. Winds will transition to become westerly with gusts up to 30 knots to be expected this afternoon and evening.
Low confidence in the development of an MVFR ceiling, but low clouds in the range of FL030-FL050 will be present by the early morning hours and linger through the end of the TAF period.

SFO Bridge Approach...Similar to SFO.

Monterey Bay Terminals...Currently VFR with northwesterly flow at both terminals. Moderate confidence that MVFR stratus will return to both terminals overnight. Winds will remain breezy out of the west through the TAF period.

MARINE
(Today through Tuesday)
Issued at 1024 AM PDT Thu May 23 2024

Building surface high pressure over the Eastern Pacific Ocean will allow for strong northwesterly winds to prevail for one more day today, with gale force gusts across the outer coastal waters.
Expect hazardous conditions and steeper wind waves as a result.
Northwesterly winds diminish and significant wave heights abate heading into the weekend as surface high pressure over the Eastern Pacific Ocean weakens and retrogrades to the west and a troughing pattern evolves.

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 until 3 PM PDT this afternoon for Pt Arena to Pt Reyes 0-10 nm.

Gale Warning from 3 PM this afternoon to 9 PM PDT this evening for Pt Arena to Pt Reyes 0-10 nm.

Small Craft Advisory until 3 PM PDT Friday for Pt Pinos to Pt Piedras Blancas 0-10 nm-Pt Reyes to Pigeon Pt 0-10 nm.

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

Small Craft Advisory from 9 AM to 3 PM PDT Friday for Pigeon Pt to Pt Pinos 0-10 nm.

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

Gale Warning until 9 PM PDT this evening for Pigeon Pt to Pt Pinos 10-60 NM.

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San Francisco
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Thu -- 05:38 AM PDT     Moonset
Thu -- 05:53 AM PDT     Sunrise
Thu -- 06:14 AM PDT     -0.92 feet Low Tide
Thu -- 06:55 AM PDT     Full Moon
Thu -- 01:36 PM PDT     4.21 feet High Tide
Thu -- 05:43 PM PDT     2.89 feet Low Tide
Thu -- 08:20 PM PDT     Sunset
Thu -- 09:04 PM PDT     Moonrise
Thu -- 11:53 PM PDT     5.96 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION

San Francisco, California, Tide feet

Golden Gate Bridge .8 mi E .
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Thu -- 01:06 AM PDT     -0.00 knots Slack
Thu -- 04:48 AM PDT     -3.38 knots Max Ebb
Thu -- 05:37 AM PDT     Moonset
Thu -- 05:53 AM PDT     Sunrise
Thu -- 06:55 AM PDT     Full Moon
Thu -- 08:29 AM PDT     0.01 knots Slack
Thu -- 11:31 AM PDT     3.27 knots Max Flood
Thu -- 02:57 PM PDT     -0.01 knots Slack
Thu -- 05:22 PM PDT     -1.48 knots Max Ebb
Thu -- 08:06 PM PDT     0.00 knots Slack
Thu -- 08:20 PM PDT     Sunset
Thu -- 09:04 PM PDT     Moonrise
Thu -- 11:00 PM PDT     2.17 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION

Golden Gate Bridge .8 mi E ., San Francisco Bay, California Current, knots

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