NWS Storm Prediction Center - Day 2 Fire Weather Outlook
Updated: Wed Aug 21 18:47:03 UTC 2019
Aug 21, 2019 Day 2 Fire Weather Outlook
Day 2 Fire
 Pop.  Cities  CWAs  RFCs  Interstates  Counties  ARTCC  FEMA Regions  Day 2 Surface Analysis 

Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
No Risk Areas Forecast
   FNUS22 KWNS 211846

   Day 2 Fire Weather Outlook  
   NWS Storm Prediction Center Norman OK
   0146 PM CDT Wed Aug 21 2019

   Valid 221200Z - 231200Z

   Minor adjustments were made to ongoing elevated lines based on 12Z
   high resolution forecast guidance. However, no significant changes
   were made. See previous discussion below.

   ..Bentley.. 08/21/2019

   .PREV DISCUSSION... /ISSUED 0143 AM CDT Wed Aug 21 2019/

   An upper-level shortwave trough will continue to move east-northeast
   across the northern Intermountain West tomorrow. An associated
   surface cold front will continue to move south and east into the
   Great Basin and through much of the northern Rockies and northern
   California. With a pre-frontal surface pressure trough running
   parallel and ahead of the cold front, the surface pressure gradient
   will strengthen across the Intermountain West along and ahead of the
   cold front.

   Elevated conditions are expected from northern Arizona/southern
   Nevada stretching northeastward into central Wyoming along/ahead of
   the surface cold front. Southwest-westerly sustained surface winds
   of 15-20 mph and RH values of 8-20% are likely to develop during
   tomorrow afternoon and evening across this area. High clouds may
   drift into northern Arizona, which could limit the southern extent
   of the current elevated area.

   Elevated conditions are also likely to develop across
   central/eastern portions of the Snake River Plain and vicinity
   tomorrow afternoon. The cold front will have passed through the
   area, but daytime heating should warm temperatures and mix the
   boundary layer enough to result in west-southwest winds of 15-25 mph
   and RH values of 15-20%.

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


   Source:  NWS Fire Weather Outlook
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