Storm Prediction Center Day 1 Fire Weather Outlook

Created: Tue Jun 26 07:34:03 UTC 2012

Day 1 Fire Weather Forecast graphic

Click for Day 1 FireWX Areal Outline Product

   ZCZC SPCFWDDY1 ALL
   FNUS21 KWNS 260732
   
   DAY 1 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0232 AM CDT TUE JUN 26 2012
   
   VALID 261200Z - 271200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF SRN/E-CNTRL
   NV...W-CNTRL/SWRN UT...
   ...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF CNTRL/ERN MT...CNTRL
   WY...
   ...CRITICAL FIRE WEATHER AREA FOR FAR SERN CO...OK PANHANDLE...WRN
   KS...FAR SWRN/S-CNTRL NEB...
   
   ...SYNOPSIS...
   AN UPPER-LEVEL SHORTWAVE TROUGH WILL EJECT NEWD FROM THE PAC NW
   ACROSS THE NRN ROCKIES TODAY. AS THIS OCCURS...SURFACE LOW PRESSURE
   WILL DEEPEN OVER ERN MT AND SRN SK. A COLD FRONT WILL THEN
   ACCELERATE EWD INTO THE NRN HIGH PLAINS...WHILE ITS SWWD SEGMENT
   MOVES MORE SLOWLY ACROSS THE GREAT BASIN. OVER THE CNTRL HIGH
   PLAINS...A LEE TROUGH WILL SHARPEN BY AFTERNOON...WHICH WILL FAVOR
   STRENGTHENING LOW-LEVEL S-SWLYS ACROSS THE REGION.
   
   ...PORTIONS OF SRN/E-CNTRL NV...W-CNTRL/SWRN UT...
   A BAND OF MODERATE MIDLEVEL SWLYS OVER THE GREAT BASIN WILL TRAIL
   THE DEPARTING TROUGH LIFTING ACROSS THE NRN ROCKIES TODAY. THIS FLOW
   COMBINED WITH DEEP BOUNDARY LAYER MIXING WILL FAVOR SUSTAINED
   SURFACE WINDS FROM 20-25 MPH DURING THE AFTERNOON. THE STRONG WINDS
   COMBINED WITH RH VALUES IN THE SINGLE DIGITS TO LOW TEENS WILL
   RESULT IN A CRITICAL FIRE WEATHER THREAT.
   
   ...PORTIONS OF CNTRL/ERN MT...CNTRL WY...
   A 70 KT MIDLEVEL SPEED MAX IS FORECAST TO ENTER WRN/CNTRL MT LATER
   THIS AFTERNOON...AND WILL BE ACCOMPANIED BY A DRY SLOT SPREADING
   NEWD INTO CNTRL WY AND ERN MT. THIS WILL LEAD TO THE RAPID ONSET OF
   CRITICALLY STRONG SURFACE WIND SPEEDS /FROM 20-30 MPH/ BY LATE
   MORNING/EARLY AFTERNOON. RH VALUES WILL ALSO PLUMMET TO 5-15 PERCENT
   AS DOWNSLOPE SWLY WINDS SPREAD ACROSS THE AREA. CRITICAL FIRE
   WEATHER CONDITIONS WILL BE PROBABLE.
   
   ...FAR SERN CO...OK PANHANDLE...WRN KS...FAR SWRN/S-CNTRL NEB...
   AS A LEE TROUGH SHARPENS OVER THE CNTRL HIGH PLAINS DURING THE
   AFTERNOON...THE SURFACE PRESSURE GRADIENT WILL TIGHTEN AND FAVOR THE
   DEVELOPMENT OF SUSTAINED S-SWLY WIND SPEEDS NEAR 20 MPH. VERY HOT
   AFTERNOON TEMPERATURES AND A DRY ANTECEDENT AIRMASS WILL ALSO YIELD
   SINGLE DIGIT RH VALUES DURING THE PERIOD OF STRONGEST SURFACE WIND
   SPEEDS. THESE CONDITIONS COMBINED WITH DRYING FUELS WILL RESULT IN A
   CRITICAL FIRE WEATHER THREAT.
   
   ...ERN AZ...NWRN NM...ERN UT...WRN/CNTRL CO...SERN WY...
   ISOLATED THUNDERSTORMS ARE FORECAST TO DEVELOP THIS AFTERNOON WITHIN
   A PLUME OF MIDLEVEL MOISTURE ARCING N-NEWD FROM ERN AZ INTO ERN
   UT/WRN CO AND SERN WY. HIGHEST PROBABILITY FOR A FEW DRY
   THUNDERSTORMS WILL LIKELY RESIDE ACROSS ERN UT...WRN/CNTRL CO...AND
   SERN WY...WHERE WEAK CAPE...PW VALUES BELOW 0.75 INCH...AND
   MODERATELY FAST STORM SPEEDS WILL BE PROBABLE.
   
   ..GARNER.. 06/26/2012
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

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