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PZZ530 San Pablo Bay, Suisun Bay, The West Delta And The San Francisco Bay North Of The Bay Bridge- 820 Am Pst Sun Dec 3 2023
Today..SW winds 5 to 10 knots. A chance of rain, mainly this morning.
Tonight..W winds 5 to 10 knots.
Mon..NW winds around 5 knots. Patchy dense fog.
Mon night..W winds around 5 knots.
Tue..NE winds around 5 knots.
Tue night..W winds 5 to 10 knots. Rain likely.
Wed..SW winds 5 to 10 knots. Rain likely.
Thu..W winds 5 to 10 knots. A chance of rain.

PZZ500 820 Am 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...
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.

FXUS66 KMTR 031209 AFDMTR

Area Forecast Discussion National Weather Service San Francisco CA 409 AM 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
(Today and tonight)
Issued at 227 AM PST Sun Dec 3 2023

Lingering light rain showers persist over the North Bay and San Francisco Bay Area this morning. Expecting the focus to shift northward throughout the day as a ridge of high pressure begins to build into the Central Coast.

Another cool afternoon is in store with temperatures struggle to warm much beyond the mid 60s across the interior, upper 50s elsewhere and lower 50s in the highest peaks. Tonight, look for temperatures to cool into the lower 50s in the hills and around the San Francisco Bay Shoreline to the mid 40s elsewhere.

LONG TERM
(Monday through Saturday)
Issued at 227 AM PST Sun Dec 3 2023

Expecting a warming and drying trend as we move into the upcoming week. On Monday the interior is expected to reach the lower 70s and mid 70s by Tuesday. This warm up will be short-lived as the next mid/upper level trough approaches the West Coast and dips down into the North Bay by Tuesday night. Across the Central Coast, will hold on to one more warm day as the interior once again warms into the lower 70s on Wednesday.

Rain chances increase across the North Bay and San Francisco Bay Area Tuesday night and sweeps southward across the region.
However, this front is likely to "wash-out" on Wednesday with minimal rainfall over the Central Coast. Cool, unsettled conditions will persist into Friday.

Once the precipitation tapers off on Friday the focus then turns to overnight lows. Longer range guidance suggests another round of chilly to cold night with frost/freeze conditions possible.

AVIATION
(12Z TAFS)
Issued at 349 AM PST Sun Dec 3 2023

Active weather continues across NorCal and the Pacific NW, resulting in westerly flow and moist conditions to the Bay Area and Central Coast. Currently there are a mix of VFR and localized LIFR conditions near KAPC and the Monterey Bay region. Hi-res guidance indicates an increased probability of lowered cigs for KSTS and KOAK terminals after 12z-13z this morning. Lower cigs that do develop will scatter out between 16z-17z but lingering longer potentially at KOAK. VFR with high clouds expected this afternoon. Surface winds this afternoon will be onshore and generally under 10 knots. Low clouds return tonight into Monday morning with HRRR advertising a stronger signal for low clouds after 12z Monday.

Vicinity of SFO...VFR currently but guidance signaling at MVFR cigs developing at OAK after 13z lingering through at least 19z.
Models in good agreement that low clouds will stay out of SFO terminal space, increasing confidence that VFR will persist through the morning hours. NW winds will increase through the afternoon. Low clouds return between 10z-15z early Monday morning but confidence for MVFR cig development at SFO is lower compared to OAK.

SFO Bridge Approach...Similar to SFO. Low clouds will likely develop across the eastern portion of the SF Bay first near the East Bay early Monday.

Monterey Bay Terminals...LIFR conditions at KWVI and KSNS will persist through at least 15z with vis improving after 15z. IFR- MVFR expected through at least 17z, however. KMRY remains VFR, but slight chance for lowered cigs to develop through 16z, but confidence is low to moderate. Winds will become onshore by the afternoon. HRRR and MOS guidance both indicate an increased probability for low cigs to develop briefly around 01-04z, but confidence is low currently. SCT low clouds included in TAFs for now to hint at this possibility.



MARINE
(Today through Friday)
Issued at 227 AM PST Sun Dec 3 2023

Across the northern waters north of the Golden Gate, gentle to moderate southwesterly winds will continue through midweek as active weather continues across the Pacific Northwest. 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.

MTR WATCHES/WARNINGS/ADVISORIES
CA...None.
PZ...Small Craft Advisory until 9 PM PST Monday for Pt Arena to Pt Reyes 10-60 NM.

Small Craft Advisory until 3 PM PST this afternoon for Pigeon Pt to Pt Pinos 10-60 NM.

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San Francisco
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Sun -- 05:05 AM PST     4.72 feet High Tide
Sun -- 07:08 AM PST     Sunrise
Sun -- 09:59 AM PST     3.37 feet Low Tide
Sun -- 12:14 PM PST     Moonset
Sun -- 02:56 PM PST     4.72 feet High Tide
Sun -- 04:50 PM PST     Sunset
Sun -- 10:01 PM PST     0.43 feet Low Tide
Sun -- 10:51 PM PST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION

San Francisco, California, Tide feet

Golden Gate Bridge .8 mi E .
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Sun -- 02:55 AM PST     2.61 knots Max Flood
Sun -- 06:20 AM PST     -0.00 knots Slack
Sun -- 07:08 AM PST     Sunrise
Sun -- 08:43 AM PST     -1.07 knots Max Ebb
Sun -- 12:07 PM PST     0.00 knots Slack
Sun -- 12:14 PM PST     Moonset
Sun -- 02:30 PM PST     1.22 knots Max Flood
Sun -- 04:50 PM PST     Sunset
Sun -- 05:01 PM PST     -0.00 knots Slack
Sun -- 08:40 PM PST     -2.34 knots Max Ebb
Sun -- 10:51 PM PST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION

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

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San Francisco Bay Area, CA,