Flood Watch

Locations Affected

San Jose, CA ∙ Fremont, CA ∙ Oakland, CA ∙ San Francisco, CA ∙ Salinas, CA ∙ Santa Rosa, CA ∙ Sunnyvale, CA ∙ Hayward, CA ∙ Daly City, CA ∙ Antioch, CA

Full Alert Message

Flood Watch National Weather Service San Francisco CA Issued by National Weather Service Eureka CA 1158 AM PST Mon Dec 22 2025 ...FLOOD WATCH REMAINS IN EFFECT FROM TUESDAY MORNING THROUGH FRIDAY EVENING... * WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...San Francisco County, San Mateo Peninsula, East Bay, South Bay, and Central Coast * WHEN...From Tuesday morning through Friday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Low water crossings may become flooded. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - A series of atmospheric rivers will result in multiple rounds of moderate to heavy rainfall this week across the Bay Area and Central Coast. An additional 2-4" of rain is expected across the interior with locally higher totals between 4-6" across the Santa Cruz Mountains and up to 8" across the Santa Lucia Range. Flooding potential will increase with each successive round of rain. Sharp rises in smaller creeks and streams are expected with at least some potential for minor flooding in mainstream rivers. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.

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