Storm Prediction Center
Day 1 and Day 2 Fire Weather Outlooks

Day 1 Fire Weather Forecast graphic

   ZCZC SPCFWDDY1 ALL
   FNUS21 KWNS 200958
   
   DAY 1 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0458 AM CDT SAT AUG 20 2005
   
   VALID 201200Z - 211200Z
   
   ...NO CRITICAL AREAS...
   
   ...SYNOPSIS...
   RIDGE WILL BUILD ACROSS WRN CONUS IN WAKE OF STRONG UPPER LEVEL LOW
   PRESSURE SYSTEM NOW MOVING INTO NRN ONTARIO. CLOSED LOW WILL MOVE
   ACROSS ONTARIO THROUGH TONIGHT AND WILL BE LOCATED JUST SOUTH OF
   HUDSON BAY BY EARLY SUNDAY. STRONGEST BELT OF MID/UPPER LEVEL FLOW
   ASSOCIATED WITH THIS SYSTEM WILL BE CONCENTRATED FROM THE NRN PLAINS
   INTO THE OH VALLEY/NORTHEAST. THERMAL LOW WILL DEVELOP AT THE SFC
   ACROSS THE COLUMBIA BASIN/ERN ORE...WHILE A SFC COLD FRONT MOVES SWD
   INTO THE SRN PLAINS/MID MS VALLEY. MAIN AREAS OF TSTMS WILL BE
   FOCUSED ACROSS THE SRN ROCKIES ASSOCIATED WITH MONSOONAL MOISTURE
   AND MID CONUS COLD FRONT.
   
   ...PACIFIC NORTHWEST...
   MAX TEMPS WILL BE A FEW DEGREES HIGHER THAN ON FRIDAY...GENERALLY
   AVERAGING FROM THE MID 90S TO AROUND 100...WHICH IS A BIT ABOVE
   NORMAL. TEMPERATURE/DEWPOINT DIFFERENCES ON THE ORDER OF 50-60
   DEGREES WILL CONTRIBUTE TO VERY LOW RH VALUES RANGING FROM 10-15
   PERCENT. SFC WINDS WILL BE MODULATED BY LOCAL TERRAIN EFFECTS...WITH
   SYNOPTIC SCALE FLOW LESS THAN 15 KT. WARM MID LEVEL TEMPERATURES
   WILL PREVENT TSTM DEVELOPMENT...AT LEAST ACROSS THE NRN GREAT
   BASIN/NORTHWEST TODAY...ALTHOUGH CHANCES FOR CONVECTION WILL
   INCREASE BY SUNDAY AFTN.
   
   ..TAYLOR.. 08/20/2005
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      
Day 2 Fire Weather Forecast graphic

   ZCZC SPCFWDDY2 ALL
   FNUS22 KWNS 200958
   
   DAY 2 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0458 AM CDT SAT AUG 20 2005
   
   VALID 211200Z - 221200Z
   
   ...NO CRITICAL AREAS...
   
   ...SYNOPSIS...
   RIDGE NOW ACROSS THE WRN STATES WILL SHIFT EWD ON SUNDAY AS CLOSED
   UPPER LOW PRESSURE SYSTEM MOVES ACROSS QUEBEC. MEANWHILE SHORTWAVE
   TROUGH WILL WEAKEN AS IT PROGRESSES EWD ACROSS BC. LARGE SCALE LIFT
   WILL INCREASE ACROSS THE NORTHWEST AS THE WAVE MOVES INLAND...WITH
   COOLING MID LEVEL TEMPS. ALTHOUGH SYNOPTIC SCALE WINDS WILL NOT BE
   OVERLY STRONG ACROSS THE PACIFIC NORTHWEST...THERMAL LOW WILL BE
   PERSISTENT FEATURE THROUGH SUNDAY. ISOLD TO SCATTERED DRY TSTMS ARE
   POSSIBLE ACROSS THE ERN GREAT BASIN/ID/COLUMBIA BASIN BY SUN AFTN
   AND EVENING.
   
   ...DRY TSTMS POSSIBLE ACROSS PORTIONS OF ERN WA/ERN ORE/ID AND THE
   ERN GREAT BASIN...
   
   FORECAST SOUNDINGS SUGGEST THE COMBINATION OF INCREASING MID LEVEL
   MOISTURE WITH COOLING MID LEVEL TEMPS WILL SUPPORT THE DEVELOPMENT
   OF ISOLD TO SCATTERED TSTMS...SOME OF WHICH WILL BE MAINLY DRY. MAX
   TEMPS WILL RISE INTO THE 90S TO NEAR 100 AGAIN ON SUNDAY WITH VERY
   LOW RH VALUES AT THE SFC / BELOW 15 PERCENT /. TSTM BASES WILL
   LIKELY BE ABOVE 10K FEET...SO LITTLE RAIN MAY REACH THE SFC DUE TO
   EVAPORATION. A CRITICAL AREA FOR DRY TSTMS IS POSSIBLE IN THE NEXT
   FORECAST IF CONDITIONS LOOK SIMILAR TOMORROW.
   
   IN ADDITION TO THE THREAT OF DRY LIGHTNING...STRONG AND ERRATIC WIND
   GUSTS WILL ACCOMPANY TSTMS. LATEST NFDRS FIRE DANGER CLASS
   OBSERVATIONS ARE IN THE HIGH OR VERY HIGH CATEGORY...AND WITH MANY
   LARGE FIRES ONGOING ACROSS NRN ID...ANY LIGHTNING MAY CONTRIBUTE TO
   NEW FIRE STARTS.
   
   ..TAYLOR.. 08/20/2005
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

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