WEATHER »
  • Red Flag Warning for San Francisco Bay Shoreline County, California
  • Red Flag Warning issued December 17 at 2:18AM PST until December 17 at 10:00AM PST by NWS
  • Effective: Sunday, December 17, 2017 at 2:18 a.m.
  • Expires: Sunday, December 17, 2017 at 10 a.m.
  • ...Gusty northerly winds will continue to combine with low
    humidity values through Sunday morning...
    .High pressure rapidly building into the Great Basin this morning
    is resulting in a strong offshore pressure gradient and a
    combination of gusty winds and low humidity values. Due to these
    factors and the recent long stretch of warm and dry conditions, a
    very elevated fire weather risk exists particularly for higher
    elevation locations.
    ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 AM PST THIS
    MORNING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY...
    * WIND...Northerly winds of 15 to 30 mph with local gusts over
    50 mph. Strongest gusts will be over the North Bay Mountains
    and East Bay Hills.
    * HUMIDITY...Overnight maximum humidity readings will likely be
    confined to the 20 to 30% range.
    * HIGHEST THREAT...Elevations above 1000 ft, especially in the
    North Bay Mountains and East Bay Hills.
    * IMPACTS...Any fires that develop will likely spread rapidly.
    Outdoor burning is not recommended.

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