From NOAA:
THIS HAZARDOUS WEATHER OUTLOOK IS FOR SAN FRANCISCO BAY AREA AND
MONTEREY BAY AREA.
.DAY ONE…WEDNESDAY AND WEDNESDAY NIGHT
EXPECT ANOTHER ROUND OF SHOWERS AND THUNDERSTORMS TODAY. SOME OF
THE STORMS MAY HAVE BRIEF HEAVY RAIN AND SMALL HAIL.
.DAYS TWO THROUGH SEVEN…THURSDAY THROUGH TUESDAY
SHOWERS AND THUNDERSTORMS WILL DECREASE WITH EACH DAY WITH
GENERALLY DRY WEATHER EXPECTED FOR THE WEEKEND. SOME OF THE
THUNDERSTORMS MAY HAVE SMALL HAIL AND BRIEF HEAVY RAIN.