Storm to bring rain, dangerous surf to Bay Area and more than a foot of snow to the Sierra

A storm is expected to bring rain to the Bay Area on Friday, with many cities forecast to receive about half an inch and heavier totals in the North Bay and Santa Cruz Mountains. Dangerous coastal surf could produce waves exceeding 20 feet through Saturday. The Sierra is forecast to get its first accumulating snow of the season, with 6 to 12 inches at lake level and more at higher elevations.