Sunrise 6:22 AM   Sunset 7:53 PM Moonrise 6:00 PM   Moonset 4:45 AM

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PZZ530 San Pablo Bay, Suisun Bay, The West Delta And The San Francisco Bay North Of The Bay Bridge- 243 Pm Pdt Mon Apr 22 2024
.small craft advisory in effect until 9 pm pdt this evening - .
Tonight - W to sw winds 15 to 25 kt - .decreasing to 5 to 15 kt overnight.Tue - SW winds 10 to 15 knots with gusts up to 25 knots. Tue night - SW winds 10 to 15 knots with gusts up to 25 knots. Wed - SW winds 10 to 15 knots. Wed night - W winds 15 to 20 knots with gusts up to 25 knots. Thu - W winds 10 to 15 knots with gusts up to 25 knots. Thu night - W winds 10 to 15 knots. Fri - W winds 10 to 15 knots with gusts up to 25 knots. Sat - W winds 10 to 15 knots.

PZZ500 243 Pm Pdt Mon Apr 22 2024
Synopsis for the central california coast and bays including the Monterey bay - Greater farallones - .and cordell bank national marine sanctuaries - .
southerly flow will persist into Tuesday over the coastal waters. Locally stronger winds will be possible through the golden gate into the west delta Monday evening and Tuesday afternoon. Additionally, stronger southerly winds near point sur will develop Tuesday afternoon. Starting Wednesday, winds turn once more to become moderate and northerly. Light southerly swell continues to move through the waters for much of the week.

FXUS66 KMTR 222157 AFDMTR

Area Forecast Discussion National Weather Service San Francisco CA 257 PM PDT Mon Apr 22 2024

New SHORT TERM, LONG TERM

SYNOPSIS
Issued at 118 AM PDT Mon Apr 22 2024

Warm inland temperatures expected through today before cooler, unsettled weather returns Tuesday and continues through late week.
Light rain chances for Thursday night and into Friday.

UPDATE
Issued at 753 AM PDT Mon Apr 22 2024

Satellite shows a similar pattern to yesterday with the Monterey Bay region blanketed in low level stratus and clear conditions throughout the rest of the Bay Area. Marine layer heights are similar to yesterday with heights around 1000-1200 feet. For the Monterey Bay area, stratus looks to dissipate by mid to late morning. Highs today will be in the mid 70's to low 80's inland in the upper 50's to lower 60's along the coast. High temperatures should run about 1-3 degrees cooler today than they were yesterday.
Today will be the last day with above normal temperatures this week with below normal temperatures forecast tomorrow through the end of the work week.

Rest of forecast looks on track with widespread stratus to return later today and sharp drop in temperatures starting tomorrow.

SHORT TERM
(This evening through Tuesday)
Issued at 256 PM PDT Mon Apr 22 2024

Primarily sunny across inland areas with clouds lingering along the coastline and the Central Coast. Looking at satellite shows the southerly surge of stratus in action with stratus extending northwards from southern California to the North Bay coastline. As of 2PM, inland temperatures are in the upper 60's to low 80's while temperatures are in the low to mid 60's along the coast. Widespread stratus will move inland by late this evening/overnight throughout the majority of the Bay Area. HRRR guidance suggests that cloud coverage will be patchier in nature throughout the Santa Clara Valley. Monday night into Tuesday, orographic lifting will help to generate light drizzle across coastal regions with precipitation accumulations of a few hundredths of an inch expected.

An upper level disturbance will approach the coast beginning Tuesday and lead to a pattern shift from above normal temperatures to below normal temperatures. While Monday's highs were 5 to 10 degrees above normal, Tuesday's highs are forecast to be, on average, 5 to 15 degrees below normal. High temperatures along the coast will linger in the upper 50's to low 60's while highs inland will stay in the 60's with a few areas potentially reaching the low 70's.

LONG TERM
(Tuesday night through next Sunday)
Issued at 256 PM PDT Mon Apr 22 2024

Cooler, unsettled conditions will continue through Friday as an upper level disturbance moves inland. High temperatures throughout the work week will stay in the 60's inland and in the upper 50's to low 60's along the coastline. Low temperatures will stay in the mid 40's to low 50's with a few locations in mountainous terrain dropping into the low 40's. Guidance continues to indicate some light precipitation is likely Thursday into Friday but confidence remains mixed as to how much precipitation will actually occur. The most recent run of the ECMWF shows light, scattered showers moving over the Bay Area with amounts generally receiving less than 0.15 to 0.25 inches.

Temperatures will gradually start to rise and become closer to normal towards the end of the weekend with highs returning to the upper 60's to low 70's.

AVIATION
(18Z TAFS)
Issued at 1048 AM PDT Mon Apr 22 2024

Mixed bag this morning with stratus impacting Monterey Bay terminals and VFR elsewhere. Satellite imagery shows a southerly surge pattern with stratus moving up the coast. The southerly flow will also usher in stronger winds this afternoon and tonight.
Current taf package has higher winds than previous tafs, especially for APC and OAK. Did fully buy in on SJC winds, but some guidance has nearly 20kt SE prevailing winds Tuesday AM. Will monitor this potential outcome. More widespread stratus tonight and through the Tuesday AM rush. Didn't put directly in the tafs, but drizzle is possible Tuesday AM. Thinning of stratus will occur most areas 17Z-18Z Tuesday.

Vicinity of SFO...VFR through early tonight. Impact near term will be gusty SW with potential impact to runway config. Gusts to 20kt, but well short of any AWW criteria. MVFR cigs fill into SF Bay 06-08Z Tuesday with cigs for SFO by 08Z through 16Z Tuesday.

SFO Bridge Approach...Similar to SFO.

Monterey Bay Terminals...MVFR cigs continue to thin this AM around Monterey Bay due to downslope flow from southerly surge. Expecting VFR this afternoon. Cigs return early for SNS 00Z and then MRY shortly after 02-04Z. MVFR cigs hold through 18Z Tuesday.

MARINE
(Today through Sunday)
Issued at 1048 AM PDT Mon Apr 22 2024

Weakening high pressure to the north has led to weaker northerly winds over the coastal waters today. Winds are locally strong over the outer waters north of Point Reyes. Southerly flow will gradually develop late this afternoon ahead of an approaching low pressure system. Near Monterey Bay, winds this afternoon may gust up to about 20 knots, but are expected to diminish into the evening. Starting Wednesday, winds turn once more to become moderate and northerly. Larger northwest swell abates through the day today, with wave heights reducing to around 6 to 7 feet. Light southerly swell continues to move through the waters this weekend and through the upcoming work week.

MTR WATCHES/WARNINGS/ADVISORIES
CA...None.
PZ...Small Craft Advisory until 9 PM PDT this evening for SF Bay N of Bay Bridge.

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San Francisco
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Mon -- 05:31 AM PDT     0.41 feet Low Tide
Mon -- 05:45 AM PDT     Moonset
Mon -- 06:24 AM PDT     Sunrise
Mon -- 11:58 AM PDT     4.46 feet High Tide
Mon -- 05:16 PM PDT     1.55 feet Low Tide
Mon -- 06:59 PM PDT     Moonrise
Mon -- 07:52 PM PDT     Sunset
Mon -- 11:39 PM PDT     5.52 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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Mon -- 12:53 AM PDT     -0.00 knots Slack
Mon -- 04:08 AM PDT     -2.74 knots Max Ebb
Mon -- 05:45 AM PDT     Moonset
Mon -- 06:24 AM PDT     Sunrise
Mon -- 07:37 AM PDT     0.00 knots Slack
Mon -- 10:33 AM PDT     3.00 knots Max Flood
Mon -- 01:37 PM PDT     -0.01 knots Slack
Mon -- 04:27 PM PDT     -2.10 knots Max Ebb
Mon -- 06:59 PM PDT     Moonrise
Mon -- 07:40 PM PDT     0.00 knots Slack
Mon -- 07:52 PM PDT     Sunset
Mon -- 10:27 PM PDT     2.61 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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