Sunrise 6:15 AM   Sunset 7:56 PM Moonrise 11:15 PM   Moonset 7:24 AM

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PZZ531 San Francisco Bay South Of The Bay Bridge- 242 Pm Pdt Sat Apr 27 2024
.small craft advisory in effect through late tonight - ..small craft advisory in effect from Sunday morning through Sunday afternoon - .
Today - W winds 5 to 10 knots - .increasing to 15 to 25 knots with gusts up to 30 knots this afternoon. Tonight - W winds 15 to 25 knots with gusts up to 30 knots. Sun - W winds 15 to 20 knots with gusts up to 25 knots. Sun night - W winds 15 to 25 knots with gusts up to 30 knots. Mon - NW winds 10 to 15 knots. Mon night - NW winds 15 to 20 knots with gusts up to 25 knots. Tue - NW winds 15 to 20 knots with gusts up to 25 knots. Wed - NW winds 10 to 15 knots.

PZZ500 242 Pm Pdt Sat Apr 27 2024
Synopsis for the central california coast and bays including the Monterey bay - Greater farallones - .and cordell bank national marine sanctuaries - .
building high pressure and a subsequent strengthening of the pressure gradient will allow for strong northwesterly winds to prevail through the weekend posing hazardous conditions for small crafts. Periods of gale force gusts will occur through the week, especially over the coastal waters. Moderate period northwesterly swell will continue to move through the waters through Thursday causing wave heights up to 12 feet.

FXUS66 KMTR 280000 AFDMTR

Area Forecast Discussion National Weather Service San Francisco CA 500 PM PDT Sat Apr 27 2024

New AVIATION, MARINE

SYNOPSIS
Issued at 1200 AM PDT Sat Apr 27 2024

High pressure brings quiet weather and slowly warming temperatures through next week. Breezy onshore winds will keep temperatures along the coast cooler through the weekend.

SHORT TERM
(This afternoon through Sunday)
Issued at 201 PM PDT Sat Apr 27 2024

Mostly sunny skies around the Bay Area and Central Coast this afternoon. A little daytime heating with meager moisture has led to a few weather cumulus build ups over the higher terrain. A warm up was mentioned on previous discussions and the latest 24 hour trend indicates many locations are running a few degrees warmer than Friday. Observations still indicated some breezy conditions this afternoon too. Gusts 25 to 35 mph have been reported along the coast.

Tonight through Sunday - A weak shortwave ridge will nudge its way S and E this evening and early tonight. A few high clouds will spill over this ridge (which can already be seen on satellite).
The high clouds area associated with a system dragging a front across far NorCal. A few clouds overhead, but at the surface patchy stratus will develop again tonight with clouds piling up along the San Mateo and Monterey Bay coast. The aforementioned front will ultimately reach the Bay Area Sunday afternoon, but with little fan fare as it falls apart. All in all, pretty quiet weather to round out the weekend. Temperatures on Sunday will be similar to slightly warmer than Saturday. Still expecting some breezy onshore flow, especially along the coast.

LONG TERM
(Sunday night through next Saturday)
Issued at 245 PM PDT Sat Apr 27 2024

Longwave pattern shows more zonal flow setting up through at least midweek. Zonal flow aloft will keep more of the same: subtle warming (inland areas), dry conditions, patchy night and morning stratus, and breezy onshore flow. Speaking of winds, probabilistic guidance really highlights northerly winds over the coastal waters Monday and Tuesday. Current forecast has trended upward with regards to winds as well. Still not strong enough for a wind advisory for the coast, but gusts of 40mph plus will possible.
Probably not the best beach days for Monday/Tuesday. Elsewhere away from the coast there is a high likelihood (greater than 70%)
of seeing gusts over 25 mph.

The second half of the work week will feature additional warming with far interior location eclipsing 80 degrees. Still breezy out of the NW so temperatures will hold mostly steady along the coast and bays. The warm up and breezy NW flow finally ease next weekend as the zonal flow becomes more amplified with approaching upper trough.

AVIATION
(00Z TAFS)
Issued at 459 PM PDT Sat Apr 27 2024

Satellite shows FEW to SCT clouds continue to linger over the region. Therefore, VFR over all the terminals, with breezy and gusty westerly winds. Expect winds to start to diminish to moderate tonight for most terminals except SF Bay terminals. Breezy conditions return late Sunday morning/early afternoon. VFR is expected to prevail through the TAF period for most terminals except Monterey Bay terminals and KSJC. KSJC MVFR is expected to return early Sunday morning.

Vicinity of SFO...VFR through the TAF period with a chance for a hour or two of MVFR conditions as models suggest near 08-09Z. With low confidence that MVFR will actually occur and lack of model agreement, SCT group was left in the TAFs. Westerly winds will remain gusty and breezy through most of the TAF period.

SFO Bridge Approach...Similar to SFO.

Monterey Bay Terminals...VFR through the remainder of the evening but expect another round of MVFR conditions tonight. Expect clearing near 17-19Z. Onshore winds will diminish overnight but will start to build again towards Sunday late morning.

MARINE
(Tonight through next Thursday)
Issued at 459 PM PDT Sat Apr 27 2024

Building high pressure and a subsequent strengthening of the pressure gradient will allow for strong northwesterly winds to prevail through the weekend posing hazardous conditions for small crafts. Periods of gale force gusts will occur through the week, especially over the coastal waters. Moderate period northwesterly swell will continue to move through the waters through Thursday causing wave heights up to 12 feet.

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

Small Craft Advisory from 9 AM Sunday to 3 AM PDT Monday for Mry Bay-Pt Arena to Pt Reyes 0-10 nm-Pt Reyes to Pigeon Pt 0-10 nm-SF Bay N of Bay Bridge.

Small Craft Advisory until 3 AM PDT Sunday for Mry Bay-Pt Arena to Pt Reyes 0-10 nm-Pt Reyes to Pigeon Pt 0-10 nm.

Small Craft Advisory until 3 AM PDT Monday for Pigeon Pt to Pt Pinos 0-10 nm-Pigeon Pt to Pt Pinos 10-60 NM-Pt Arena to Pt Reyes 10-60 NM-Pt Pinos to Pt Piedras Blancas 0-10 nm.

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Smith Slough
Click for Map
Sat -- 02:46 AM PDT     7.73 feet High Tide
Sat -- 06:17 AM PDT     Sunrise
Sat -- 08:23 AM PDT     Moonset
Sat -- 10:28 AM PDT     -0.72 feet Low Tide
Sat -- 05:23 PM PDT     6.11 feet High Tide
Sat -- 07:55 PM PDT     Sunset
Sat -- 09:56 PM PDT     3.17 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Smith Slough, San Francisco Bay, California, Tide feet

Dumbarton Hwy Bridge
Click for Map
Sat -- 12:39 AM PDT     1.01 knots Max Flood
Sat -- 03:00 AM PDT     -0.00 knots Slack
Sat -- 06:17 AM PDT     Sunrise
Sat -- 07:17 AM PDT     -1.32 knots Max Ebb
Sat -- 08:23 AM PDT     Moonset
Sat -- 10:35 AM PDT     0.00 knots Slack
Sat -- 01:52 PM PDT     1.50 knots Max Flood
Sat -- 05:26 PM PDT     -0.00 knots Slack
Sat -- 07:55 PM PDT     Sunset
Sat -- 07:55 PM PDT     -0.49 knots Max Ebb
Sat -- 09:56 PM PDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION

Dumbarton Hwy Bridge, South San Francisco Bay, California Current, knots

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