Red Flag Warning
Issued by NWS San Francisco Bay Area, CA

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WWUS86 KMTR 240402
RFWMTR

URGENT - FIRE WEATHER MESSAGE
National Weather Service San Francisco CA
902 PM PDT Sat Sep 23 2017

...Red Flag Warning for the North Bay Hills Continues through
Tuesday morning...

.A warming and drying trend that began on Saturday will continue
through at least Tuesday morning. In addition, periods of moderate
and gusty northeast winds are expected at times across the North
Bay hills, especially across the Napa county hills and the hills
of northern Sonoma County.

CAZ507-242200-
/O.CON.KMTR.FW.W.0004.000000T0000Z-170926T1800Z/
North Bay Mountains-
902 PM PDT Sat Sep 23 2017

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 AM PDT TUESDAY FOR
LOW HUMIDITY AND GUSTY WINDS FOR FIRE WEATHER ZONE 507...

* AFFECTED AREA...Fire weather zone 507. The North Bay Hills
  above 1000 feet in elevation.

* WIND...Northeast Winds 10 to 20 mph...gusts 25 mph. Strongest
  overnight and morning hours.

* HUMIDITY...Lowering to around 15 percent afternoons with poor
  recovery overnight...locally less than 30 percent.

* HIGHEST THREAT...is located over the Napa hills and around
  Mount Saint Helena where winds will be strongest and humidity
  lowest. Downed powerlines in remote areas will likely cause
  new fire starts.

* IMPACTS...any fires that develop will likely spread rapidly.
  Outdoor burning is not recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now...or will shortly. A combination of
gusty winds and low relative humidity can contribute to extreme
fire behavior.

&&

$$



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