The heaviest rain in the storm arriving Thursday is expected to reach the Bay Area during the morning commute, the National Weather Service said.
In the Sierra Nevada, heavy snow is expected Thursday from morning to evening — up to 3 inches of snow per hour. The best time to travel is Friday afternoon to Saturday afternoon, before another storm moves in.
The updating radar map above shows areas of precipitation in green, with greater intensities indicated by yellow and orange.
Updates on Sierra road closures and chain controls can be found on CalTrans’ website or mobile app or by calling (800) 427-7623.
