Overview

• Persistent onshore flow from a stalled cutoff low has kept afternoon highs in Bay Area valleys in the 70s and coastal areas in the 60s.
• Delta breezes are gusting between 20 and 40 mph in the Bay Area, with stronger winds funneled through hill and gap corridors.
• A Lake Wind Advisory is in effect for Lake Tahoe, where gusts of up to 35 mph and waves as high as three feet are expected.
• There is a slight chance of isolated thunderstorms in the Sierra Nevada from Wednesday through Friday, peaking on Thursday.
• A high-pressure ridge is forecast to rebuild by next Sunday, which will allow temperatures to climb back into the 90s.