Storm Prediction Center Day 2 Fire Weather Outlook

Created: Sat Aug 19 06:48:03 UTC 2017 (20170819 1200Z Day 2 FireWX shapefile | 20170819 1200Z Day 2 FireWX KML)

Day 2 Fire Weather Forecast graphic
Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
No Risk Areas Forecast

Click for Day 2 FireWX Areal Outline Product (KWNSPFWFD2)

   FNUS22 KWNS 190645

   Day 2 Fire Weather Outlook  
   NWS Storm Prediction Center Norman OK
   0145 AM CDT Sat Aug 19 2017

   Valid 201200Z - 211200Z

   A large-scale trough will continue moving eastward across central
   Canada Sunday, with a belt of enhanced mid-level westerly winds
   remaining confined to the north-central CONUS. An upper ridge is
   forecast to amplify over the eastern Pacific and western CONUS,
   while a weak upper low remains just off the coast of southern CA. At
   the surface, a cold front will advance eastward across the northern
   Plains and Upper Midwest, with its trailing portion becoming
   stationary and ill-defined across the northern High Plains into the
   northern Rockies/Great Basin.

   ...Portions of the Northern Great Basin/Rockies...
   Although the strongest mid-level flow will remain displaced to the
   north of this region, around 20-25 kt of westerlies at 500 mb will
   likely reach the surface as the boundary layer warms/mixes by Sunday
   afternoon and early evening. Localized enhancement to the low-level
   west-southwesterly flow appears likely across eastern portions of
   the Snake River Valley into western WY, where sustained winds of
   15-20 mph should occur. Some higher gusts will be possible. RH
   values will once again become lowered into the 10-15% range across
   this region as both the low-level airmass and available fuels remain
   quite dry. These expected meteorological and fuel conditions support
   the introduction of an elevated area across southern ID into far
   southern MT and western WY. Locally critical conditions may occur
   where winds exceed 20 mph, but this is currently expected on just a
   brief and spotty basis.

   ..Gleason.. 08/19/2017

   ...Please see for graphic product...


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