San Francisco, CA – An early-season storm is expected to drench the Bay Area and Central Coast beginning Monday, with forecasters warning of potential flooding and hazardous travel conditions through Tuesday night.
According to the National Weather Service San Francisco Bay Area, rainfall totals could reach 0.25–1.5 inches in lower elevations and up to 3 inches in higher terrain. The system could also produce isolated thunderstorms, bringing brief heavy downpours and localized higher rain totals.
Minor urban and small-stream flooding is possible, particularly along the Central Coast where the heaviest rainfall is projected. Commuters should prepare for slick roadways, reduced visibility, and potential ponding during peak travel hours.
The National Weather Service advises residents to exercise caution, avoid flooded roadways, and stay indoors during thunderstorms. The storm marks one of the region’s first significant rain events of the season and could help alleviate some drought conditions while also raising early flooding risks.
This system is forecast to taper off by late Tuesday night as showers move eastward, with drier conditions expected midweek.