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Nov 18, 2018 Day 2 Fire Weather Outlook
Updated: Sun Nov 18 17:51:03 UTC 2018 (Print Version | 20181118 2000Z Day 2 FireWX shapefile | 20181118 2000Z Day 2 FireWX KML)
Day 2 Fire
 Population  Cities/Towns  CWAs  Interstates  Counties  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 181750

   Day 2 Fire Weather Outlook  
   NWS Storm Prediction Center Norman OK
   1150 AM CST Sun Nov 18 2018

   Valid 191200Z - 201200Z

   The previous forecast is on track and no changes are needed. See
   discussion below for more details on elevated fire weather
   conditions across the southern California coastal ranges and

   ..Leitman.. 11/18/2018

   .PREV DISCUSSION... /ISSUED 0119 AM CST Sun Nov 18 2018/

   Upper-level ridging will be present over much of the western CONUS
   on Monday, but an upper-level shortwave trough will move onshore in
   southern California beginning Monday afternoon/evening. Surface high
   pressure will remain across the northern Great Basin/Northern
   Rockies, although surface pressure will begin to decrease across the
   Intermountain West. This will weaken the surface pressure gradient
   between the interior western CONUS and the California coast reducing
   offshore/downslope flow across California.

   ...Southern California...
   Elevated fire weather conditions (east/northeast sustained surface
   winds of 12-20 mph with gusts of 30-35 mph, RH values of 10-20%) are
   likely to continue across much of the coastal mountain ranges in
   southern California on Monday. Latest high-resolution guidance
   suggests the strongest winds/lowest RH will be Monday morning,
   although elevated conditions should continue into the afternoon and
   at times Monday night. However, the surface pressure gradient will
   relax during the day on Monday, which will gradually weaken
   offshore/downslope winds across the area. Mid/upper-level clouds are
   also likely to begin increasing during the morning/afternoon as the
   upper-level trough approaches.

   ...Please see for graphic product...


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Page last modified: November 18, 2018
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