Storm Prediction Center
Day 1 and Day 2 Fire Weather Outlooks

Day 1 Fire Weather Forecast graphic

Click for Day 1 FireWX Areal Outline Product

   ZCZC SPCFWDDY1 ALL
   FNUS21 KWNS 312150
   
   DAY 1 FIRE WEATHER OUTLOOK RESENT 3
   NWS STORM PREDICTION CENTER NORMAN OK
   0450 PM CDT TUE JUL 31 2007
   
   VALID 311200Z - 011200Z
   
   ...NO CRITICAL AREAS...
   
   ...SYNOPSIS...
   A MID/UPPER-LEVEL SHORT WAVE TROUGH WILL TRANSLATE EWD FROM BRITISH
   COLUMBIA/ALBERTA ONTO THE PRAIRIE PROVINCES. ASSOCIATED HEIGHT FALLS
   WILL FLATTEN THE LARGE-SCALE RIDGE OVER THE NRN PLAINS/UPPER
   MIDWEST. BELT OF STRONG MID-LEVEL FLOW WILL GRAZE THE EXTREME NRN
   ROCKIES/HIGH PLAINS...PRIMARILY HOLDING N OF THE CONUS BORDER. AT
   THE SURFACE...A COLD FRONT WILL PUSH SEWD FROM THE FAR NRN ROCKIES
   THROUGH THE NRN PLAINS BY EARLY WED.
   
   ...PORTIONS OF NRN MT E OF THE CONTINENTAL DIVIDE...
   MODERATE NWLY SURFACE WINDS AND MARGINALLY LOW RH MAY LEAD TO
   BRIEF/LOCALIZED CRITICAL CONDITIONS THIS AFTERNOON. ON THE FRINGE OF
   STRONG MID-LEVEL FLOW...DAYTIME MIXING SHOULD BE SUFFICIENT FOR
   SUSTAINED NWLY SURFACE WINDS APPROACHING 20 MPH AFTER A COLD FRONT
   MOVES E OF THE AREA BY THIS AFTERNOON. THIS NWLY FLOW WILL ADVECT
   SOMEWHAT COOLER TEMPERATURES AND A MORE MOIST UPSTREAM AIR MASS.
   THUS...RH VALUES SHOULD LARGELY BE MARGINAL DURING THE AFTERNOON
   /AROUND 20 PERCENT/. ONE EXCEPTION MAY BE ALONG THE LEE OF THE
   ROCKIES WHERE DOWNSLOPE EFFECTS SHOULD MAINTAIN SLIGHTLY DRIER
   CONDITIONS. SUBSTANTIAL RH RECOVERY IS EXPECTED DURING THE
   EVENING/OVERNIGHT AS A SECONDARY FRONTAL SURGE SHIFTS WINDS TO THE
   N.
   
   ...CNTRL NV...
   RELATIVELY NARROW NORTH-TO-SOUTH CORRIDOR OF DRY TSTM POTENTIAL
   SHOULD REMAIN ALONG THE PERIPHERY OF RICHER MONSOON MOISTURE MOVING
   VERY SLOWLY NWWD FROM THE SWRN CONUS. WEAK LARGE-SCALE ASCENT WILL
   MITIGATE CONVECTIVE COVERAGE TO ISOLATED OR WIDELY SCATTERED AT
   BEST.
   
   ..GRAMS.. 07/31/2007
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      
Day 2 Fire Weather Forecast graphic

Click for Day 2 FireWX Areal Outline Product

   ZCZC SPCFWDDY2 ALL
   FNUS22 KWNS 312218
   
   DAY 2 FIRE WEATHER OUTLOOK RESENT 3
   NWS STORM PREDICTION CENTER NORMAN OK
   0518 PM CDT TUE JUL 31 2007
   
   VALID 011200Z - 021200Z
   
   ...NO CRITICAL AREAS...
   
   ...SYNOPSIS...
   AN UPPER-LEVEL TROUGH WILL TRACK EWD FROM THE CANADIAN PRAIRIE
   PROVINCES INTO ONTARIO BY EARLY THU. UPSTREAM RIDGING WILL GRADUALLY
   BUILD ACROSS THE WRN CONUS. THIS WILL RESULT IN A SLOW EXPANSION OF
   ROBUST MONSOONAL MOISTURE NWWD ACROSS THE GREAT BASIN TOWARDS THE
   NRN SIERRAS.
   
   ...NWRN NV/FAR NERN CA...
   MODERATE MID-LEVEL MOISTURE WILL LEISURELY WORK ITS WAY NWWD AS
   RIDGING STEADILY BUILDS NWD ACROSS THE GREAT BASIN/PACIFIC NW. A
   PRECEDING HOT/DRY AIR MASS IN THE LOW-LEVELS WILL AID IN
   DRY/HIGH-BASED TSTM POTENTIAL. MODEL FORECAST SOUNDINGS CONFIRM THIS
   WITH DEEPLY-MIXED INVERTED-V TYPE THERMODYNAMIC PROFILES WED
   AFTERNOON. GIVEN THE LACK OF SIGNIFICANT LARGE-SCALE
   ASCENT...OVERALL DRY TSTM COVERAGE SHOULD REMAIN LIMITED.
   
   ..GRAMS.. 07/31/2007
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

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