Unseasonably Cold Storm Threatens Scattered Thunderstorms Through Thursday

An unseasonably cold storm system is swirling directly over Northern California, generating a bizarre mix of rough seas, mountain gales, lightning and local rain. Tonight & Wednesday: Isolated Storms & Dangerous Coastlines The Storm Threat: Scattered showers and isolated thunderstorms are actively moving through the North Bay and East Bay with the highest lightning threat near Napa and Livermore through tonight. Mountain Gales: Gusts of 30–40 mph (and up to 50 mph) along the coast and across the North Bay & East Bay hills tonight. Dangerous Seas: Powerful gale-force winds are building massive, rough waves of 12-15 feet through Wednesday morning. Boaters and beachgoers must use extreme caution. Beach Hazard Statement in effect until 9 AM Wednesday. Wednesday: We do it all over again. Temperatures will stay chilly, only in the 50s and 60s at the coast and 60s to low 70s inland. Another round of scattered showers and a few weak afternoon thunderstorms will pop up, especially for the interior Bay Area.