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PZZ530 San Pablo Bay, Suisun Bay, The West Delta And The San Francisco Bay North Of The Bay Bridge- 246 Pm Pst Sun Dec 3 2023
Today..SW winds 5 to 10 knots. A chance of rain. Patchy fog this afternoon.
Tonight..W winds 5 to 10 knots. Patchy fog.
Mon..W winds 5 to 10 knots. Areas of fog.
Mon night..SW winds 5 to 10 knots. Patchy fog.
Tue..NE winds 5 to 10 knots. Patchy fog.
Tue night..NE winds 5 to 10 knots. Rain likely.
Wed..SW winds 15 to 20 knots with gusts up to 25 knots. Rain.
Thu..W winds 5 to 10 knots. A chance of rain.

PZZ500 246 Pm Pst Sun Dec 3 2023
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries...
expect light to moderate winds to continue across most of the waters with locally breezy conditions expected in the southern waters off of point sur. Moderate period northwest swell at 8 to 11 feet will persist into Monday. A series of long period northwest swells will propagate through the coastal waters starting Monday afternoon. As these swells build, elevated seas are expected to prevail for much of the upcoming week, resulting in hazardous conditions for small craft operators.

FXUS66 KMTR 032349 AFDMTR

Area Forecast Discussion National Weather Service San Francisco CA 349 PM PST Sun Dec 3 2023

New AVIATION

SYNOPSIS
Issued at 227 AM PST Sun Dec 3 2023

Cool, unsettled weather for Sunday followed by a short-lived warm-up early in the week. An approaching trough of low pressure towards the middle of the upcoming week will bring the return of unsettled weather.

SHORT TERM
(This evening through Monday)
Issued at 114 PM PST Sun Dec 3 2023

Radar remains in precip mode this afternoon thanks to ongoing isolated showers north of the Golden Gate. Since this morning these showers have tipped a few buckets with 0.01" up to 0.25" inches in far N Sonoma county. Elsewhere around the Bay Area and Central Coast has been dry with a mix of sun and clouds.

For tonight and Monday...the trough that brought shower activity will retreat northward as high pressure noses in from the SW. The building high pressure will kick off a warming and drying period.
Increased sunshine and a warmer airmass will lead to a 3-5 degree temperature jump from Sunday to Monday. Highs will generally be in the 60s to near 70. Given the moist boundary layer some patchy fog will also be possible early Monday.

LONG TERM
(Monday night through next Saturday)
Issued at 131 PM PST Sun Dec 3 2023

Dry weather continues through Tuesday as the longwave pattern shows a ridge of high pressure over the region. Temperatures will warm additional few degrees with interior temperatures reaching the upper 60s to mid 70s - or 5-10 degrees above normal for early December.

Abrupt change in the weather will occur Tuesday night into Wednesday as the ridge fades and an upper level trough/sfc front approach from NW. No big change from previous forecast as showers initially develop over the North Bay Tuesday night before spreading southward. A period of light to moderate rain will be possible over the North Bay on Wednesday with the fropa. Rainfall amounts and intensity will diminish the farther south and east one goes in the Bay Area/Central Coast. Shower activity will linger through Friday. Rainfall amounts from Tuesday night through Friday: 0.25-1.0" North Bay, elsewhere 0.05-0.3" except barely a trace interior Monterey/San Benito. Latest guidance continues to show a drop in snow levels Thursday into Friday as well - 3800-4500 feet. No snow accum expected.

Gradual clearing occurs Friday and Friday night. The colder airmass and clearing skies will lead to some chilly/cold overnight temperatures. Highest confidence (40-60%)for freezing temperatures will be over the interior N Bay and S Monterey/San Benito. If the forecast holds a mix of frost and freeze products will be needed.

AVIATION
(00Z TAFS)
Issued at 330 PM PST Sun Dec 3 2023

Mid-to-high level clouds across much of the area today. While most locations remain VFR into this evening, Bay Area and North Bay terminals should expect a return of low clouds late tonight into early Monday morning as high clouds clear out. Moderate confidence in MVFR cigs for Bay Area terminals into mid-morning, possibly lasting closer to mid-day for the North Bay terminals.
General wind pattern will be onshore through the period. Not much large scale forcing under a high pressure ridge, so winds look to be on the lighter side.

Vicinity of SFO...VFR through this evening. Moderate confidence in MVFR cigs by early Monday morning, lasting into mid-morning. Winds remain light and onshore, breezy to 10 kts during the afternoons.

SFO Bridge Approach...Similar to SFO

Monterey Bay Terminals...Mid level clouds throughout the area tonight. Generally VFR with low confidence in the extent of low clouds and FG during the early morning hours Monday, due to the influence of mid-to-high clouds. Winds remain onshore aside from light SE drainage flow out of the valleys early Monday morning.

MARINE
(Today through Friday)
Issued at 857 AM PST Sun Dec 3 2023

Light to moderate winds continue across most of the waters with locally breezy conditions expected in the southern waters off of Point Sur. Moderate period northwest swell at 8 to 11 feet will persist into Monday. A series of long period northwest swells will propagate through the coastal waters starting Monday afternoon.
As these swells build, elevated seas are expected to prevail for much of the upcoming week, resulting in hazardous conditions for small craft operators.

BEACHES
Issued at 114 PM PST Sun Dec 3 2023

A long period northwest swell builds into the coastal waters Monday afternoon and will last into the early Tuesday. This longer period swell will result in large, unexpected waves that can sweep across the beach without warning. As a result, an increased risk of people and pets being swept into the sea from rocks, jetties, and beaches. These sneaker waves can also move large objects such as logs, crushing anyone caught underneath.
Northwest-facing beaches will be particularly affected. Additional long-period swells will be possible in the mid week, potentially causing another round of sneaker waver risks. Predicted mid week wave heights may prompt the issuance of a High Surf Advisory. Stay tuned...

MTR WATCHES/WARNINGS/ADVISORIES
CA...Beach Hazards Statement from Monday afternoon through late Monday night for CAZ006-505-509-530.

PZ...Small Craft Advisory from 3 PM Monday to 3 PM PST Tuesday for Pigeon Pt to Pt Pinos 0-10 nm-Pt Arena to Pt Reyes 0-10 nm- Pt Pinos to Pt Piedras Blancas 0-10 nm-Pt Reyes to Pigeon Pt 0-10 nm.

Small Craft Advisory until 3 PM PST Tuesday for Pt Arena to Pt Reyes 10-60 NM.

Small Craft Advisory from 9 AM Monday to 3 PM PST Tuesday for Pigeon Pt to Pt Pinos 10-60 NM.

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Corte Madera Creek
Click for Map
Sun -- 05:42 AM PST     4.72 feet High Tide
Sun -- 07:08 AM PST     Sunrise
Sun -- 10:50 AM PST     3.20 feet Low Tide
Sun -- 12:14 PM PST     Moonset
Sun -- 03:33 PM PST     4.72 feet High Tide
Sun -- 04:50 PM PST     Sunset
Sun -- 10:51 PM PST     Moonrise
Sun -- 10:52 PM PST     0.41 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Corte Madera Creek, San Francisco Bay, California, Tide feet

Point San Quentin 1.9 mi E
Click for Map
Sun -- 12:28 AM PST     0.01 knots Slack
Sun -- 03:32 AM PST     1.45 knots Max Flood
Sun -- 06:56 AM PST     -0.00 knots Slack
Sun -- 07:08 AM PST     Sunrise
Sun -- 09:19 AM PST     -0.91 knots Max Ebb
Sun -- 12:14 PM PST     Moonset
Sun -- 12:52 PM PST     0.00 knots Slack
Sun -- 03:07 PM PST     0.68 knots Max Flood
Sun -- 04:50 PM PST     Sunset
Sun -- 05:37 PM PST     -0.00 knots Slack
Sun -- 09:16 PM PST     -2.01 knots Max Ebb
Sun -- 10:51 PM PST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION

Point San Quentin 1.9 mi E, San Francisco Bay, California Current, knots

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