NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION. Privacy and Cookie policy

PZZ531 San Francisco Bay South Of The Bay Bridge- 255 Pm Pst Thu Nov 30 2023
.small craft advisory in effect until 9 pm pst this evening...
This afternoon..W winds 15 to 25 knots with gusts up to 30 knots.
Tonight..NW winds 15 to 25 knots with gusts up to 30 knots.
Fri..NW winds 10 to 20 knots with gusts up to 25 knots.
Fri night..W winds 10 to 15 knots with gusts up to 25 knots. Patchy fog.
Sat..SW winds around 5 knots. Areas of fog. A slight chance of rain.
Sat night..SW winds around 5 knots. Patchy fog.
Sun..NW winds 5 to 10 knots. Areas of fog.
Mon..N winds around 5 knots. Areas of fog.

PZZ500 255 Pm Pst Thu Nov 30 2023
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries...
moderate to strong winds are expected to persist through late Friday into early Saturday. NEar gale force winds, with the potential for isolated stronger gusts, are expected in the inner southern coastal waters near point sur through Friday afternoon. Stronger winds are also possible in the san francisco bay, delta, and Monterey bay from Thursday afternoon to early Friday morning with increased potential for coastal jet development in these regions. Winds are expected to weaken starting late Friday across the northern waters and into early to mid Saturday across the southern waters. Northwest swell persists through the weekend with a second larger, moderate period northwest swell arriving Friday afternoon. Unsettled weather conditions will remain through the weekend with the highest precipitation chances across the northern waters.

FXUS66 KMTR 302106 AFDMTR

Area Forecast Discussion National Weather Service San Francisco CA 106 PM PST Thu Nov 30 2023

New SYNOPSIS, SHORT TERM, LONG TERM

SYNOPSIS
Issued at 105 PM PST Thu Nov 30 2023

A band of showers comes through later today with unsettled weather for the next couple of days. Warmer and drier conditions develop over the weekend and continue through the early part of next week.

SHORT TERM
(This evening through Friday)
Issued at 105 PM PST Thu Nov 30 2023

Radar returns and satellite imagery show a band of showers coming into the coastal regions of northern California as a upper level shortwave impacts the Pacific Northwest and northern California coast. High resolution model output shows the showers moving south through our region, coming through the North Bay this afternoon, passing the SF Bay Area and Central Coast this evening before diminishing as it passes to our south. Rain totals will not be impressive with the coastal ranges seeing up to a tenth of an inch of rain, and everyone else seeing a few hundredths of an inch at most. Breezy onshore winds should continue through Friday as a high pressure system over the North Pacific and low pressure in the Great Basin create a robust onshore pressure gradient, albeit with lull during the night as diurnal wind patterns lessen the impact of the pressure gradient. Gusts up to 20-25 miles per hour are expected across the region today, with gusts somewhat diminished tomorrow.
High temperatures for today and tomorrow remain in the upper 50s to lower 60s in the lower elevations and the upper 40s to mid 50s in the higher elevations.

LONG TERM
(Friday night through next Wednesday)
Issued at 105 PM PST Thu Nov 30 2023

Unsettled northwesterly flow continues through the next couple of days, but the bulk of the moisture will be directed to the north of us across the Pacific Northwest and northern California. Up to 0.5" of rain is possible through the weekend for the Sonoma coastal range, but overall any rain we receive will be minor with even the most optimistic predictions not expecting wetting rain (over a tenth of an inch) for most of the region. High pressure will build at the surface and aloft through the weekend, with drier and warmer conditions as a result. Highs in the interior valleys could reach into the lower 70s for the early part of next week. The ridge begins to weaken in the middle part of next week, with upper level troughing approaching the west coast.

AVIATION
(18Z TAFS)
Issued at 943 AM PST Thu Nov 30 2023

Overall moderate-high confidence in VFR through the TAF period with some mid to high level clouds throughout. Post-frontal NW winds will be the most impactful feature of today and tonight with winds increasing by midday today, lasting into the overnight hours. Expect gusts generally 15-20 kts with localized higher up to 27 kts at favored gap locations. Low confidence in a quick- moving band of showers this afternoon affecting the North Bay and greater Bay Area. Not expecting too many lasting impacts, however. Winds diminish into Friday morning where VFR and high clouds continue.

Vicinity of SFO...VFR through the period today. Slight chance of disruptions this afternoon with possible passing of a few showers.
Confidence is low, but any showers or reductions in CIG hgt are expected to be brief. NW winds increase through this afternoon, gusting to 27 kts before gradually diminishing into tonight.

SFO Bridge Approach...Similar to SFO.

Monterey Bay Terminals...VFR through the TAF period with gusty NW flow increasing this afternoon. Gusts 20-25 kts, gradually diminishing into tonight. Mainly mid-high clouds through this period, though some low clouds are expected in FEW/SCT coverage overnight tonight.

MARINE
(Today through Tuesday)
Issued at 859 AM PST Thu Nov 30 2023

Developing moderate to strong winds are expected to persist through early Friday across the northern waters and through late Friday across the southern waters. Gale force winds are possible over the far southern coastal waters near Point Sur beginning late Thursday morning through late Friday afternoon. A larger, moderate period northwest swell will arrive towards the start of the weekend. Weather conditions will remain unsettled with increased chances of light precipitation across the outer and inner waters lasting into the weekend.

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

Small Craft Advisory until 3 AM PST Friday for Mry Bay-Pt Arena to Pt Reyes 0-10 nm-Pt Arena to Pt Reyes 10-60 NM.

Small Craft Advisory from 9 AM to 3 PM PST Friday for Mry Bay.

Small Craft Advisory until 3 AM PST Friday for Pt Reyes to Pigeon Pt 0-10 nm.

Small Craft Advisory until 3 PM PST Friday for Pigeon Pt to Pt Pinos 0-10 nm.

Small Craft Advisory until 3 AM PST Saturday for Pt Pinos to Pt Piedras Blancas 0-10 nm.

Small Craft Advisory until 9 AM PST Friday for Pigeon Pt to Pt Pinos 10-60 NM.

toggle option: (graph/table)

Granite Rock
Click for Map
Thu -- 03:28 AM PST     6.78 feet High Tide
Thu -- 07:03 AM PST     Sunrise
Thu -- 08:13 AM PST     3.53 feet Low Tide
Thu -- 10:28 AM PST     Moonset
Thu -- 01:21 PM PST     8.44 feet High Tide
Thu -- 04:51 PM PST     Sunset
Thu -- 07:47 PM PST     Moonrise
Thu -- 09:06 PM PST     -0.69 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Granite Rock, Redwood Creek, San Francisco Bay, California, Tide feet

Dumbarton Bridge
Click for Map
Thu -- 12:27 AM PST     1.76 knots Max Flood
Thu -- 04:41 AM PST     -0.00 knots Slack
Thu -- 06:17 AM PST     -0.39 knots Max Ebb
Thu -- 07:03 AM PST     Sunrise
Thu -- 08:31 AM PST     0.00 knots Slack
Thu -- 10:28 AM PST     Moonset
Thu -- 11:50 AM PST     1.11 knots Max Flood
Thu -- 02:59 PM PST     -0.00 knots Slack
Thu -- 04:50 PM PST     Sunset
Thu -- 06:12 PM PST     -1.55 knots Max Ebb
Thu -- 07:46 PM PST     Moonrise
Thu -- 09:50 PM PST     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION

Dumbarton Bridge, San Francisco Bay, California Current, knots

Full Color Weather Map

Link to Loop


Other links: GEOS-West     Contential US     Full GOES-East

San Francisco Bay Area, CA,