An Extreme Cold Warning was issued for parts of the San Francisco Bay Area, California, including interior Monterey County, San Benito County, and the eastern Santa Clara Hills. The warning will be in effect from 01:00 to 09:00 PST on January 9, 2026. Temperatures are forecast to drop below freezing, posing hazards to unhoused populations, livestock, and sensitive crops.
Record-breaking King Tides struck the San Francisco Bay Area and parts of the Northern California coast on Friday and Saturday, January 2-3, 2026, causing widespread coastal flooding across multiple counties. Tide gauges across the region recorded water levels up to 0.76 m (2.5 feet) above normal, breaking multiple records and prompting road closures, flood warnings, and emergency advisories.
Four back-to-back atmospheric rivers are forecast to make landfall along the U.S. West Coast between November 3 and November 9, 2025. Heavy rainfall totals of 76–130 mm (3–5 inches), with isolated amounts up to 177 mm (7 inches), could lead to localized flooding in parts of northern California and Washington State throughout the week.
Creep measurements along the Concord Fault show consistent right-lateral motion of 2–3 mm/year (0.08–0.12 inches/year), prompting a shift in the official fault trace by up to 500 m (1 640 feet) and placing urban homes and infrastructure directly within a newly defined hazard zone.
A Heat Advisory has been issued for multiple regions in California, including the North Bay, East Bay, South Bay, Santa Cruz Mountains, and Central Coast, for Friday, May 30, 2025, due to forecast temperatures reaching up to 41 °C (105 °F).
A strong atmospheric river (AR) is forecast to bring heavy rainfall and colder temperatures across California this week starting Tuesday night, February 11, 2025, with the heaviest precipitation expected in southwestern parts of the state through Thursday, February 13.
The National Weather Service (NWS) has issued a Freeze Warning and a Frost Advisory for parts of the San Francisco Bay Area as winter storm brings freezing temperatures to the region.
A Red Flag Warning has been issued for the Bay Area in San Fransisco on Monday, November 4, 2024, due to a decrease in humidity and fire weather conditions.
The National Weather Service (NWS) issued a red flag warning for the Bay Area due to fire weather from 11 pm (6 am UTC) Thursday, October 17, 2024 to 5 pm (12 am UTC) Saturday, October 19, 2024.
San Francisco registered 8.8 °C (48 °F) on Thursday, November 28, 2019, and tied with November 27, 1896, for the coldest November day on record. Meanwhile, North Bay dealt with below-freezing temperatures overnight, with Novato Airport hitting -5 °C (23…
