San Francisco, CA – A Red Flag Warning remains in effect for the San Francisco Bay Area, signaling heightened fire danger due to dry, gusty winds through Thursday morning. Residents in San Francisco and surrounding regions should take extra precautions, as the conditions could accelerate the spread of any fire that ignites. Wind gusts up to 50 mph, with areas in the North Bay interior mountains seeing potential gusts up to 70 mph, are expected to contribute to the risk.
According to the National Weather Service (NWS), this Red Flag Warning covers various fire zones across San Francisco, Marin, Sonoma, and East Bay areas, indicating a critical threat from offshore winds and low relative humidity levels, which are projected between 10% and 25%. NWS cautions against any outdoor burning activities, as the windy conditions can rapidly expand fires.
The high-wind event, driven by northeast gusts reaching 20-30 mph, is anticipated to extend into early Thursday morning, with critical areas like East Bay Hills and Santa Clara Valley expected to experience stronger gusts. Alongside low humidity, these conditions will create a volatile environment for fire outbreaks. Residents in affected regions are advised to secure outdoor objects, be mindful of fire restrictions, and prepare for potential fire warnings.
In terms of the extended forecast, San Francisco will experience sunny skies with a high of 71°F on Thursday, dropping to around 49°F by nightfall. Winds are expected to ease after the warning period. The following days will remain mostly clear, with sunny weather anticipated into the weekend, though temperatures will slightly cool to highs in the mid-60s by Saturday. Light drizzle may arrive on Saturday night, with rain more likely on Veterans Day.
