ZCZC SPCFWDDY1 ALL
   FNUS21 KWNS 180735

   Day 1 Fire Weather Outlook  
   NWS Storm Prediction Center Norman OK
   0135 AM CST Fri Dec 18 2020

   Valid 181200Z - 191200Z

   ...Synopsis...
   An amplified yet somewhat progressive midlevel pattern will remain
   across the United States on Friday. Within this broader flow regime,
   a trough will eject from the Rockies into the Plains, with neutral
   to slightly rising heights developing across much of the West in
   response.

   At the surface a cold front will move south through the Plains, with
   weak surface cyclogenesis occurring along the front across the
   southern High Plains. Farther west, high pressure will remain in
   place across much of the Great Basin.

   ... Southern California ...

   The aforementioned higher surface pressure across the Great Basin
   will help drive a favorable pressure gradient pattern for offshore
   flow across the area. Despite winds gusting in excess of 40 mph in
   terrain-favored locations, relative humidity looks to remain high
   enough to avoid critical fire-weather conditions. However, given the
   marginally low relative humidity and strong offshore flow, elevated
   to locally critical fire-weather conditions may occur. 

   ... Southern/Southeast New Mexico and West Texas ...

   As the aforementioned midlevel trough traverses the region, a
   corridor of enhanced flow will move across this area. The
   orientation of the flow will support downslope-enhanced
   warming/drying in the presence of strong/gusty winds. The result
   will be elevated fire-weather conditions.

   ..Marsh.. 12/18/2020

   ...Please see www.spc.noaa.gov/fire for graphic product...

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