SAN FRANCISCO, CA – A slow-moving Pacific storm system is expected to bring heavy rainfall and a small but notable flash flood threat to parts of the Bay Area and Central Coast early next week. The National Weather Service (NWS) has issued a Marginal Risk for Monday and Tuesday, indicating at least a 5% chance of rainfall intense enough to trigger localized flooding.
Forecasted Rainfall and Flooding Risk
According to the Weather Prediction Center and the NWS San Francisco Bay Area office, periods of moderate to heavy rain are expected to develop by late Sunday night and continue through Tuesday morning. The affected areas include San Francisco, Oakland, San Jose, Santa Rosa, Monterey, and the Highway 1 corridor through Big Sur.
In addition to the rain, there is a Marginal Risk of flooding, particularly in low-lying and poorly drained areas. Urban and small stream flooding are possible, especially in regions prone to water accumulation.
Transportation Impact and Safety Concerns
Transportation officials are urging caution for commuters along major roadways such as I-280, US-101, and Highway 17. Slick roads and ponding may cause slowdowns or minor accidents. Drivers are advised to stay alert, as the rain could lead to hazardous travel conditions…