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 010821
   
   DAY 1 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0321 AM CDT WED AUG 01 2007
   
   VALID 011200Z - 021200Z
   
   ...NO CRITICAL AREAS...
   
   ...SYNOPSIS...
   A POTENT UPPER-LEVEL TROUGH WILL SLIDE EWD FROM SASKATCHEWAN INTO
   NWRN ONTARIO BY EARLY THU. IN ITS WAKE...UPSTREAM RIDGE AXIS WILL
   BECOME MORE WELL-DEFINED AND SHIFT SLOWLY EWD ACROSS THE WRN CONUS.
   THIS WILL RESULT IN A GRADUAL NWWD EXPANSION OF MID-LEVEL MONSOON
   MOISTURE FROM THE GREAT BASIN TOWARDS THE NRN SIERRAS/SRN CASCADES
   IN NERN CA.
   
   ...FAR WRN NV/NERN CA...
   INCREASING MID-LEVEL MOISTURE WILL STEADILY OVERTOP AN ANTECEDENT
   VERY WARM/DRY LOW-LEVEL AIR MASS. THIS WILL PRODUCE INVERTED-V TYPE
   THERMODYNAMIC PROFILES LATE THIS AFTERNOON...SUPPORTING A THREAT FOR
   HIGH-BASED CONVECTION. OWING TO THE PRESENCE OF MID/UPPER-LEVEL
   RIDGING...LAPSE RATES ABOVE THE BOUNDARY LAYER SHOULD REMAIN
   RELATIVELY MODEST...LIMITING OVERALL TOTAL INSTABILITY.
   STILL...DIURNALLY-ENHANCED OROGRAPHIC FORCING WILL LIKELY BE
   SUFFICIENT FOR ISOLATED DRY TSTMS.
   
   ..GRAMS.. 08/01/2007
   
   ...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 011456
   
   DAY 2 FIRE WEATHER OUTLOOK RESENT 4
   NWS STORM PREDICTION CENTER NORMAN OK
   0956 AM CDT WED AUG 01 2007
   
   VALID 021200Z - 031200Z
   
   ...NO CRITICAL AREAS...
   
   ...SYNOPSIS...
   A RELATIVELY PROGRESSIVE UPPER-LEVEL PATTERN WILL PERSIST ACROSS THE
   FAR NRN CONUS. THE EXPANSIVE RIDGE OVER THE WRN CONUS WILL GRADUALLY
   SHIFT EWD AS A SHORT WAVE TROUGH APPROACHES THE PACIFIC NW COAST BY
   EARLY FRI. MONSOON MOISTURE OVER MUCH OF THE SWRN CONUS/GREAT BASIN
   WILL SLOWLY SPREAD NWD INTO PORTIONS OF THE PACIFIC NW.
   
   ...S-CNTRL ORE/FAR NERN CA/FAR NWRN NV...
   MODERATE MID-LEVEL MOISTURE WILL BE LAZILY DRAWN NWD ON RATHER
   MEAGER SLY FLOW. PRECEDING VERY WARM/DRY CONDITIONS IN THE
   LOW-LEVELS SHOULD PROVE FAVORABLE FOR HIGH-BASED/DRY TSTM POTENTIAL
   ON THU AFTERNOON. CONVECTIVE COVERAGE MAY BE SLIGHTLY GREATER VERSUS
   DAY 1...AS A SHORT WAVE TROUGH APPROACHES THE PACIFIC NW COAST AND
   LARGE-SCALE ASCENT BEGINS TO INCREASE. HOWEVER...TIMING/LOCATION OF
   THIS WAVE AT PEAK HEATING MAY ONLY MARGINALLY ENHANCE BACKGROUND
   ASCENT WITH CONVECTION THAT FORMS ALONG THE ERN SLOPES OF THE
   CASCADES. WITH OVERALL DRY TSTM COVERAGE SOMEWHAT UNCERTAIN...WILL
   REFRAIN FROM INTRODUCING A CRITICAL AREA ATTM.
   
   ..GRAMS.. 08/01/2007
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

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