Sunrise 5:45 AM   Sunset 8:31 PM Moonrise 6:29 AM   Moonset 10:10 PM

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PZZ530 San Pablo Bay, Suisun Bay, The West Delta And The San Francisco Bay North Of The Bay Bridge- 813 Pm Pdt Sat Jun 8 2024
.small craft advisory in effect until 3 am pdt Sunday - .
Tonight - SW wind 10 to 15 kt. Waves around 2 ft or less. Sun - SW wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon. Waves around 2 ft or less. Sun night - SW wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Waves around 2 ft or less. Mon - SW wind around 5 kt, rising to 10 to 15 kt in the afternoon. Waves around 2 ft or less. Mon night - SW wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Waves around 2 ft or less. Tue - SW wind 5 to 10 kt. Waves around 2 ft or less. Tue night - SW wind 5 to 10 kt. Waves around 2 ft or less. Wed - SW wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon. Waves around 2 ft or less. Wed night - SW wind 10 to 15 kt. Waves around 2 ft or less. Thu - SW wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon. Waves around 2 ft or less. Thu night - SW wind 10 to 15 kt. Waves around 2 ft or less.

PZZ500 813 Pm Pdt Sat Jun 8 2024
Synopsis for the central california coast and bays including the Monterey bay - Greater farallones - .and cordell bank national marine sanctuaries - .
the pressure gradient between subtropical high pressure over the eastern pacific ocean and low pressure over the southwest continues to allow for moderate to fresh northwesterly breezes to prevail. As high pressure slowly encroaches towards the west coast, the pressure gradient will tighten, causing the wind speed to increase through Sunday with gale force gusts possible over the northern zones. A fresh to strong northwesterly breeze will persist through next week. Significant wave heights will mostly be dominated by wind driven waves, though there is a moderate northwesterly swell and a low southwesterly swell mixed in.

FXUS66 KMTR 090521 AFDMTR

Area Forecast Discussion National Weather Service San Francisco CA 1021 PM PDT Sat Jun 8 2024

New AVIATION, MARINE

SYNOPSIS
Issued at 1205 PM PDT Sat Jun 8 2024

Seasonal temperatures with breezy onshore winds will last through Sunday before another warm up begins Monday.

UPDATE
Issued at 758 PM PDT Sat Jun 8 2024

The short term forecast remains in good shape, and the only alteration to the grids was to beef up winds across the East Bay Hills as well as the SF Peninsula as early evening mixing of 20-25 knot momentum continues. Winds across the bay side of the SF Peninsula should subside in a few hours as nocturnal cooling transpires. Locations along the ocean side of the peninsula as well as across the East Bay Hills will remain a bit breezier due to more channeling effects around the various terrain features. In fact, NBM probabilistic guidance suggests around a 60% chance for hourly wind gusts of at least 30 mph or greater across the East Bay Hills and winds have been adjusted upward across this area to reflect more of the 75th percentile output (which appears to have captured the overachieving winds this afternoon and early evening). Individuals across the area should anticipate wind gusts of 25 to near 40 mph---due to acceleration around some of the terrain---across the aforementioned areas (as well as some of the areas along the Pacific coast).

The rest of the forecast remains largely unchanged and our attention will turn to our next warm spell Monday through Wednesday. Tuesday appears to be the hottest day with the potential for upper 80s to the triple digits across the interior portions of the area. Be sure to abide by your heat safety protocols. Another potential impact of the above normal warmth will be the additional drying of grasses which may result in an uptick in fire starts. Be sure to do your part and avoid activities that could spark a grass fire (e.g., tossing lit cigarette ends on the ground, dragging tow chains).

SHORT TERM
(This evening through Sunday)
Issued at 1205 PM PDT Sat Jun 8 2024

The stratus clouds have eroded everywhere except along the immediate coast. Despite the clearing, area profilers and the morning sounding confirm the marine layer is roughly 2,000 ft deep. This is allowing cool air to infiltrate into the valleys and keep the afternoon temperatures mild.

A short wave trough at 500 mb is approaching the coast this afternoon. This wave will amplify and become a cut-off low SW of the Channel Islands by Sunday evening. This synoptic change will cause the mid-level winds to shift from southerly to northerly over the next 36 hours. This change won't be as obvious at the surface. While the surface wind direction should veer a bit, the weather Sunday will continue to be dominated by a deep marine layer, morning stratus, and breezy onshore winds in the afternoon.
Broadly speaking, the temperatures Sunday will be similar to Saturday and the seasonal averages.

LONG TERM
(Sunday night through next Friday)
Issued at 1205 PM PDT Sat Jun 8 2024

Abandoned by the jet stream, the Southern California cut-off low will continue to drift south Monday, allowing a ridge of high pressure to build across the Bay Area. This ridge will cause the marine layer to compress from 2,000 ft over the weekend to around 1,000 ft by Tuesday. While the cut-off low is part of the typical offshore wind equation, we are missing the other piece of the puzzle; strong high pressure over the intermountain West. While weak offshore winds are expected at 700 mb Mon-Tue, they likely won't reach the surface. The combination of offshore winds aloft, and a shallow marine layer will cause inland areas to warm above seasonal averages from Monday through Wednesday. Tuesday currently looks like the warmest day of the week, with inland highs in the 90s. Coastal areas will stay in the 60s and 70s.

By Thursday, an approaching trough will kick the cut-off low inland, where it will quickly weaken. This will bring the return of onshore flow and allow temperatures cool back to the seasonal average.

AVIATION
(06Z TAFS)
Issued at 1017 PM PDT Sat Jun 8 2024

Currently VFR at all terminals with not a cloud in the sky. High confidence in VFR through the TAF period at all terminals except the Monterey Bay terminals of MRY and SNS. Winds will remain onshore through the TAF period, becoming gusty this afternoon.

Vicinity of SFO...Currently VFR with easterly flow. Moderate confidence in VFR through the TAF period. Winds will transition to become westerly and gusty this afternoon with gusts up to 25 knots to be expected. Winds will diminish overnight and remain westerly through the TAF period.

SFO Bridge Approach...Similar to SFO.

Monterey Bay Terminals...Currently VFR with northwesterly flow at both terminals. Winds will prevail out of the west for MRY and out of the northwest for SNS through the TAF period. Confidence is not high on if the terminals will see any reduction in flight category through the TAF period; however, with the pattern being dominated by high pressure, the most likely outcome would be LIFR conditions in the early-to-mid morning hours with greater confidence of occurrence at MRY as compared to SNS due to the proximity to the Pacific Ocean.

MARINE
(Tonight through next Friday)
Issued at 1017 PM PDT Sat Jun 8 2024

The pressure gradient between subtropical high pressure over the Eastern Pacific Ocean and low pressure over the Southwest continues to allow for moderate to fresh northwesterly breezes to prevail. As high pressure slowly encroaches towards the West Coast, the pressure gradient will tighten, causing the wind speed to increase through Sunday with gale force gusts possible over the northern zones. A fresh to strong northwesterly breeze will persist through next week. Significant wave heights will mostly be dominated by wind driven waves, though there is a moderate northwesterly swell and a low southwesterly swell mixed in.

MTR WATCHES/WARNINGS/ADVISORIES
CA...None.
PZ...Small Craft Advisory until 3 AM PDT Sunday for SF Bay N of Bay Bridge.

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

Small Craft Advisory until 9 AM PDT Monday for Pigeon Pt to Pt Pinos 10-60 NM-Pt Arena to Pt Reyes 0-10 nm-Pt Arena to Pt Reyes 10-60 NM-Pt Reyes to Pigeon Pt 0-10 nm.

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

Small Craft Advisory from 9 AM Sunday to 9 AM PDT Monday for Pt Pinos to Pt Piedras Blancas 0-10 nm.

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San Francisco
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Sat -- 12:31 AM PDT     6.31 feet High Tide
Sat -- 05:47 AM PDT     Sunrise
Sat -- 07:29 AM PDT     Moonrise
Sat -- 07:38 AM PDT     -1.44 feet Low Tide
Sat -- 03:14 PM PDT     4.67 feet High Tide
Sat -- 07:26 PM PDT     3.12 feet Low Tide
Sat -- 08:30 PM PDT     Sunset
Sat -- 11:09 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION

San Francisco, California, Tide feet

Golden Gate Bridge .8 mi E .
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Sat -- 02:19 AM PDT     -0.01 knots Slack
Sat -- 05:47 AM PDT     Sunrise
Sat -- 06:05 AM PDT     -3.73 knots Max Ebb
Sat -- 07:29 AM PDT     Moonrise
Sat -- 09:53 AM PDT     0.01 knots Slack
Sat -- 01:00 PM PDT     3.59 knots Max Flood
Sat -- 04:27 PM PDT     -0.00 knots Slack
Sat -- 06:47 PM PDT     -1.33 knots Max Ebb
Sat -- 08:30 PM PDT     Sunset
Sat -- 09:36 PM PDT     0.00 knots Slack
Sat -- 11:09 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION

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

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