Storm Prediction Center Day 1 Fire Weather Outlook

Created: Tue Sep 2 15:42:29 UTC 2014 (20140902 1700Z Day 1 FireWX shapefile | 20140902 1700Z Day 1 FireWX KML)

Day 1 Fire Weather Forecast graphic
Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
No Risk Areas Forecast

Click for Day 1 FireWX Areal Outline Product

   ZCZC SPCFWDDY1 ALL
   FNUS21 KWNS 021540

   DAY 1 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   1040 AM CDT TUE SEP 02 2014

   VALID 021700Z - 031200Z

   A WEAK INVERTED TROUGH OVER NWRN CA WILL AID IN PRODUCING AN
   OFFSHORE WIND TUESDAY NIGHT CONTINUING INTO WEDNESDAY OVER PORTIONS
   OF SWRN OREGON AND NWRN CA WHERE FUELS CONTINUE VERY DRY.  THIS WILL
   AFFECT MAINLY THE HIGHER ELEVATIONS AND ALSO LEAD TO A POOR HUMIDITY
   RECOVERY OVERNIGHT. 

   OTHERWISE...NO MAJOR CHANGES EXCEPT TO EXPAND THE ELEVATED AREA OVER
   SOUTHERN WYOMING SLIGHTLY TO THE NORTH INTO MORE OF CENTRAL WYOMING.

   ..BOTHWELL.. 09/02/2014

   .PREV DISCUSSION... /ISSUED 0246 AM CDT TUE SEP 02 2014/

   ...SYNOPSIS...
   A SHORTWAVE TROUGH WILL MOVE NEWD FROM THE MID MS VALLEY ACROSS THE
   UPPER GREAT LAKES/ERN ONTARIO AND INTO WRN NY. AS THIS
   OCCURS...UPPER PATTERN ACROSS THE NRN THIRD OF THE CONUS WILL TREND
   ZONAL WITH ENHANCED WLY FLOW EXTENDING THROUGH IT. COMPACT SHORTWAVE
   TROUGH WILL DROP INTO THE PACIFIC NW FROM WRN BRITISH COLUMBIA LATE
   IN THE PERIOD. AT THE SURFACE...COLD FRONT WILL MOVE EWD/SEWD ACROSS
   THE OH VALLEY AND NORTHEAST STATES. SRN PORTION OF THIS COLD FRONT
   -- FROM SRN MO WWD ACROSS THE KS/OK BORDER -- WILL REMAIN STATIONARY
   THROUGHOUT THE DAY BEFORE BEGINNING TO SHIFT NWD AS A WARM FRONT
   AFTER 00Z/WED.

   ...SRN WY...
   WLY FLOW ALOFT IS EXPECTED TO INCREASE THROUGHOUT THE
   PERIOD...HELPING SUPPORT WLY SURFACE WINDS NEAR 20-25 MPH AS THE
   BOUNDARY LAYER MIXES. GUSTS AROUND 30 MPH ARE POSSIBLE. AIRMASS
   ACROSS THE REGION IS VERY DRY /00Z RIW SOUNDING REPORTED A PW VALUE
   OF 0.3O INCH -- BELOW THE 25TH PERCENTILE/...SUPPORTING RH VALUES
   AROUND 15-20 PERCENT AS TEMPERATURES INCREASE INTO THE UPPER 70S AND
   LOW 80S. THESE METEOROLOGICAL CONDITIONS COMBINED WITH DRY FUELS ARE
   CONSISTENT WITH AN ELEVATED TO LOCALLY CRITICAL FIRE WEATHER THREAT.

   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...

      

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