Back

Weather Alert Detail

  • Flash Flood Warning for San Francisco County, California
  • Flash Flood Warning issued December 11 at 8:16AM PST until December 11 at 11:15AM PST by NWS
  • Effective: Thursday, December 11, 2014 at 8:16 a.m.
  • Expires: Thursday, December 11, 2014 at 11:15 a.m.
  • THE NATIONAL WEATHER SERVICE IN THE SAN FRANCISCO BAY AREA HAS
    ISSUED A
    * FLASH FLOOD WARNING FOR FLASH FLOODING AND DEBRIS FLOWS FOR...
    ALAMEDA COUNTY IN NORTHERN CALIFORNIA...
    THIS INCLUDES THE CITIES OF...UNION CITY...SAN LORENZO...SAN
    LEANDRO...NEWARK...HAYWARD...FREMONT...CASTRO VALLEY...
    CONTRA COSTA COUNTY IN NORTHERN CALIFORNIA...
    THIS INCLUDES THE CITY OF SAN RAMON...
    SAN MATEO COUNTY IN NORTHERN CALIFORNIA...
    THIS INCLUDES THE CITIES OF...MENLO PARK...EAST PALO ALTO...
    SANTA CLARA COUNTY IN NORTHERN CALIFORNIA...
    THIS INCLUDES THE CITIES OF...SUNNYVALE...PALO ALTO...MOUNTAIN
    VIEW...LOS ALTOS...CUPERTINO...
    SANTA CRUZ COUNTY IN NORTHERN CALIFORNIA...
    * UNTIL 1115 AM PST
    * AT 814 AM PST...THE PUBLIC REPORTED HEAVY RAIN AND
    FLOODING...FROM AN AREA OF HEAVY RAIN OVER THE WARNED AREA.
    SIGNIFICANT FLASH FLOODING HAS BEEN CAUSED BY THIS HEAVY RAIN IN SAN
    MATEO COUNTY AND IT WILL SPREAD EAST CONTINUING SIGNFICANT FLOODING.