San Francisco and the surrounding areas, including Napa and Sonoma Counties, are bracing for possible thunderstorms this afternoon and evening. The National Weather Service San Francisco cautions residents of a 15-25% slight chance of isolated to scattered thunderstorms on Wednesday afternoon, especially in northern Napa and Sonoma counties. They advise individuals to remain vigilant, stating, “Remember: when thunder roars, go indoors! and see a flash, dash inside!”
The NWS San Francisco also notes a “Marginal risk for flash flooding in northern Napa and Sonoma counties” and suggests a shift to drier and slightly warmer weather on Friday and Saturday. However, for those making weekend plans, unsettled weather may roll back into the Bay Area on Sunday, potentially disrupting outdoor activities. San Franciscans might enjoy a brief respite from the rain with the sun before pulling out the umbrellas again.
According to the Area Forecast Discussion by the National Weather Service, the thunderstorm activity “will kickoff by the afternoon and diminish after sunset once daytime heating is lost.” Beyond the thunderstorm developments, rain showers are also expected to provide “beneficial” accumulation this afternoon and to a lesser extent tomorrow…