textproduct: San Francisco Bay Area

KEY MESSAGES

Updated at 124 PM PST Wed Nov 26 2025

- Dry and mild conditions continue through Thursday

- Cooler temperatures Friday and into the weekend as the next system approaches

SHORT TERM

Issued at 124 PM PST Wed Nov 26 2025 (This evening through Thursday)

Seeing less cloud cover compared to yesterday at this hour. Thus, a greater potential to reach our high temperatures this afternoon. Temperatures will warm into the lower 70s across the Central Coast and Santa Cruz Area, approach 70 degrees F in the North Bay, and 60s across much of the remainder of the region. This is as moderate, dry offshore flow persist in the higher elevations and a mid/upper level ridge axis is currently in place aloft.

Tonight, again expecting less widespread coverage of low clouds and fog. However, cannot rule out patchy to areas of dense fog across the North Bay valleys, East Bay valleys, and the Santa Clara Valley overnight. Temperatures overnight are forecast to be mostly in the upper 30s to lower 40s. In the higher elevations, we can expect temperatures to be in the mid 50s to lower 60s due to continued offshore winds.

Any low clouds and/or fog that does develop will give way to mostly sunny skies by Thursday afternoon. This will again allow temperatures to be up to 10 degrees above seasonal averages. Overall, within a few degrees of what today's forecast high temperatures will be.

LONG TERM

Issued at 124 PM PST Wed Nov 26 2025 (Thursday night through next Tuesday)

Thursday night and into Friday an upper level trough is forecast to move into the Pacific Northwest. This will bring a weak, dry frontal boundary across the Bay Area and Central Coast cooling temperatures to near seasonal averages. A general troughing pattern will persist over the region through early next week as high pressure builds offshore. Thus, look for weak to moderate offshore flow in the higher elevations, dry conditions, and temperatures near seasonal averages.

AVIATION

(00Z TAFS) Issued at 355 PM PST Wed Nov 26 2025

Currently VFR across the region with localized fog returning to the North and East Bays tonight. Moderate confidence that fog cover will continue to diminish tonight as offshore winds bring drier air into the region. Guidance does show some potential for visibilities to drop into MVFR territory across the rest of the Bay Area but confidence is low that widespread fog will develop. Main adjustment was to add a tempo for lowered visibilities to SJC early tomorrow morning. Otherwise, winds generally stay light and offshore through the TAF period with breezier winds developing during the afternoon/evening hours.

Vicinity of SFO...VFR with some potential for MVFR conditions overnight. Fog is not expected to impact the terminal but visibilities may drop below 6SM between 10Z-16Z. Winds remain light and offshore overnight with moderate onshore winds redeveloping during the day.

SFO Bridge Approach...Similar to SFO.

Monterey Bay Terminals...VFR through the TAF period. Winds remain offshore with light winds at MRY and light to moderate at SNS. Drainage winds are expected to develop at SNS early tomorrow morning and persist through the early afternoon.

MARINE

(Tonight through next Monday) Issued at 355 PM PST Wed Nov 26 2025

Lingering high pressure along the coast will keep gentle to moderate northerly flow over the coastal waters through tonight. Patchy dense fog will be possible again tonight, especially in the West Delta. A weak dissipating cold front will bring increasing northerly winds Thanksgiving day lasting into Friday. Additionally, a squared seas state will develop late Thanksgiving day leading to hazardous conditions.

MTR WATCHES/WARNINGS/ADVISORIES

CA...None. PZ...Small Craft Advisory from 9 PM Thursday to 9 AM PST Friday for Pt Pinos to Pt Piedras Blancas 0-10 nm.

Small Craft Advisory from 3 PM Thursday to 9 AM PST Friday for Pigeon Pt to Pt Pinos 10-60 NM-Pt Arena to Pt Reyes 10-60 NM.