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    Day 2 FW Outlook >
Sep 19, 2018 Day 1 Fire Weather Outlook
Updated: Wed Sep 19 14:46:02 UTC 2018 (Print Version | 20180919 1700Z Day 1 FireWX shapefile | 20180919 1700Z Day 1 FireWX KML)
Day 1 Fire
 Population  Cities/Towns  CWAs  Interstates  Counties  FEMA Regions  Day 1 Surface Analysis

Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
Critical 65,114 905,622 Provo, UT...Orem, UT...Draper, UT...Lehi, UT...Spanish Fork, UT...
   ZCZC SPCFWDDY1 ALL
   FNUS21 KWNS 191445

   Day 1 Fire Weather Outlook  
   NWS Storm Prediction Center Norman OK
   0945 AM CDT Wed Sep 19 2018

   Valid 191700Z - 201200Z

   ...CRITICAL FIRE WEATHER AREA FOR SOUTHWEST TO NORTHEAST
   UT...NORTHWEST CO AND SOUTHWEST WY...

   The ongoing forecast is on track and no changes are needed. See
   discussion below for more details.

   ..Leitman.. 09/19/2018

   .PREV DISCUSSION... /ISSUED 1236 AM CDT Wed Sep 19 2018/

   ...Synopsis...
   A mid-level trough axis will push through the Great Basin today.
   Another well-timed mid-level jet will round the base of the trough
   and impact portions of Utah and Wyoming during the afternoon. A
   deepening surface trough across Utah and southwest Wyoming will also
   enhance surface winds.

   ...Portions of central/northeastern Utah...southwest/south-central
   Wyoming...northwest Colorado...
   Critical fire weather conditions will occur during the afternoon as
   at least modest boundary-layer mixing will bring stronger flow to
   the surface. Further enhancement of surface flow will occur as
   surface trough deepens in the Great Basin in response to the
   upper-level trough. Surface winds will reach 20-25 mph with RH
   values falling to 5-15%. 

   Areas surrounding the critical region as well as central Nevada
   northward to the Snake River Valley can expect elevated fire weather
   concerns. Surface winds in these areas will reach 15-20 mph with
   5-20% RH afternoon RH values.

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

   CLICK FOR DAY 1 FIREWX AREAL OUTLINE PRODUCT (KWNSPFWFD1)
      
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Page last modified: September 19, 2018
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