textproduct: San Francisco Bay Area

KEY MESSAGES

Updated at 1145 PM PDT Wed Apr 1 2026

- Unsettled weather through early Thursday morning with cool, gusty, and rainy conditions.

- Drier weather moves in mid Thursday, with a slight increase in temperatures.

- Offshore flow and the warming trend continues into the weekend.

SHORT TERM

Issued at 1145 PM PDT Wed Apr 1 2026 (Tonight through Friday)

A cold front passes through the region tonight, which will spread showers across the region from north to south. Ahead of its arrival, breezy southeasterly winds are being observed with gusts up to 20-30 mph for much of the region, while higher points of terrain see gusts up to 45 mph. Winds eventually become northwesterly after the frontal passage and will remain breezy into Thursday morning. In terms of rain amounts for the very near term, now through Thursday morning, the mountains and hills of the Bay Area and Santa Cruz County will see up to 0.25" while valley locations are closer to 0.05-0.15". For the rest of the Central Coast amounts look to range from 0.0-0.15", perhaps up to 0.25" in the Santa Lucia Range. Drier weather works in behind the frontal passage, with high temperatures making it into the 60s for interior valley locations, and in generally in the 50s along the immediate coastline and in higher points of elevation.

LONG TERM

Issued at 1145 PM PDT Wed Apr 1 2026 (Friday night through next Wednesday)

High pressure builds into the region on Friday and holds through the weekend. This will lead to warm and dry conditions, accompanied with offshore winds through the weekend. On Friday, the winds will be the strongest, as the pressure gradients tighten over northern California. The strongest winds will be found over the mountains, with gusts of 40 to 50 mph in the North Bay Interior Mountains with gusts of 30 to 40 mph in the East Bay Hills, Eastern Santa Clara Hills, and Santa Cruz Mountains. These winds ease Friday evening, with lighter winds expected for the weekend.

A pattern change looks likely early next week. Cooler weather would return along with the 20-40% chance for rain, favoring the North Bay.

AVIATION

(12Z TAFS) Issued at 430 AM PDT Thu Apr 2 2026

A passing front through the Bay Area early this morning is bringing clouds/precip to Monterey Bay region, but clearing for terminals to the north. Some patchy fog behind the front for STS otherwise VFR for all terminals this afternoon. Drier flow tonight with offshore flow developing. Added LLWS for KOAK early Friday with gusty NE winds around 2000-2500 ft

Vicinity of SFO...VFR. Gusts onshore this afternoon 25-30kt.

SFO Bridge Approach...Similar to SFO.

Monterey Bay Terminals...Lingering VCSH with IFR to MVFR cigs through 14-15Z. VFR this afternoon and tonight.

MARINE

(Today through Tuesday) Issued at 430 AM PDT Thu Apr 2 2026

A passing cold front will bring unsettled weather and fresh to strong breezes to the coastal waters today. Winds increase this afternoon behind the front over both bays as well. The stronger winds will result in hazardous conditions. Northerly breezes diminish and seas abate by the weekend.

MTR WATCHES/WARNINGS/ADVISORIES

CA...None. PZ...Small Craft Advisory from 3 PM this afternoon to 9 PM PDT this evening for SF Bay N of Bay Bridge.

Small Craft Advisory from 11 AM this morning to 3 AM PDT Friday for Mry Bay.

Small Craft Advisory until 3 AM PDT Friday 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 PDT Friday for Pt Arena to Pt Reyes 10-60 NM.

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