Storm Prediction Center
Day 1 and Day 2 Fire Weather Outlooks

Day 1 Fire Weather Forecast graphic

   ZCZC SPCFWDDY1 ALL
   FNUS21 KWNS 290641
   
   DAY 1 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0141 AM CDT THU SEP 29 2005
   
   VALID 291200Z - 301200Z
   
   ...NO CRITICAL AREAS...
   
   ...SYNOPSIS...
   ZONAL FLOW WILL EXIST OVER THE NORTHERN CONUS THROUGH THE
   PERIOD...SOUTH OF A STRONG UPPER TROUGH OVER THE GULF OF ALASKA/SWRN
   CANADA. MODERATE MID LEVEL WLY FLOW OVER THE NRN ROCKIES WILL AID IN
   STRENGTHENING THE LEE TROUGH OVER THE NRN HIGH PLAINS. TO THE WEST
   OF THE LEE TROUGH...STEEP LAPSE RATES WILL SUPPORT MODEST WIND
   FIELDS AT THE SFC OVER ERN MT AND WRN ND. COMBINED WITH LOW RH
   READINGS...NEAR CRITICAL FIRE WEATHER CONDITIONS WILL EXIST.
   ELSEWHERE ACROSS THE WEST...AN UPPER LOW WILL REMAIN IN PLACE OVER
   THE FOUR CORNERS WITH SCATTERED PRECIPITATION OVER MUCH OF THE SRN
   ROCKIES. TO THE WEST OF THIS SYSTEM...UPPER RIDGING WILL ALLOW FOR
   ABOVE NORMAL TEMPERATURES TO MUCH OF THE GREAT BASIN AND CA...WHERE
   MIN RH READINGS WILL AVERAGE BETWEEN 10-15 PERCENT OVER MUCH OF THIS
   REGION.
   
   ACROSS THE ERN HALF OF THE NATION...A BROAD AREA OF HIGH PRESSURE IN
   THE WAKE OF A STRONG COLD FRONT WILL PROVIDE FOR LOW DEWPTS AND MIN
   RH READINGS FROM 20-30 PERCENT ACROSS THE CENTRAL/NRN PLAINS INTO
   THE MS VALLEY. SWLY WINDS /15-20 MPH/ WILL INCREASE OVER THE
   NRN/CENTRAL PLAINS AS THE PRESSURE GRADIENT STRENGTHENS BETWEEN THE
   LEE TROUGH OVER ND AND HIGH PRESSURE CENTERED OVER MO.
   
   ...ERN MT/WRN ND...
   THE SFC LEE TROUGH IS FCST TO MOVE INTO CENTRAL ND DURING THE
   MORNING HOURS. WEST OF THIS FEATURE...WLY WINDS WILL INCREASE DURING
   THE MORNING AS STEEP LAPSE RATES IN THE LOW-MID LEVELS AID IN
   TRANSFER OF MODERATE MID LEVEL WINDS ALOFT TO THE SFC. PRESENT
   INDICATIONS ARE THAT MIN RH READINGS WILL AVERAGE AROUND 20 PERCENT.
   SFC WINDS ARE ANTICIPATED FROM 15-20 MPH WITH GUSTS OVER 25 MPH.
   MARGINALLY LOW RH READINGS/WINDS WILL PRECLUDE A CRITICAL FIRE
   WEATHER THREAT.
   
   ..CROSBIE.. 09/29/2005
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      
Day 2 Fire Weather Forecast graphic

   ZCZC SPCFWDDY2 ALL
   FNUS22 KWNS 290641
   
   DAY 2 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0141 AM CDT THU SEP 29 2005
   
   VALID 301200Z - 011200Z
   
   ...NO CRITICAL AREAS...
   
   ...SYNOPSIS...
   ZONAL FLOW WILL REMAIN ALONG MOST OF THE U.S/CANADIAN BORDER ON DAY
   2. A STRONG/BROAD UPPER TROUGH WILL AMPLIFY OVER THE GULF OF ALASKA
   LEADING TO A GRADUAL TRANSITION AWAY FROM ZONAL FLOW TOWARDS SWLY
   FLOW AT MID LEVELS ACROSS THE PAC NW DURING THE LATTER HALF OF DAY
   2. DOWNSTREAM OF THIS TRANSITION...STRONG WLY MID LEVEL FLOW OVER
   THE NRN ROCKIES WILL SUPPORT A SFC LEE TROUGH AND MODEST WLY SFC
   WINDS OVER THE NRN HIGH PLAINS. AS ON DAY 1...NEAR CRITICAL FIRE
   WEATHER CONDITIONS ARE EXPECTED OVER SRN/ERN MT INTO WRN ND...WHERE
   SUSTAINED WINDS WILL AVERAGE FROM 15-20 MPH AND MIN RH READINGS WILL
   BE AROUND 20 PERCENT. ELSEWHERE...AN UPPER LOW OVER THE FOUR CORNERS
   IS ANTICIPATED TO OPEN UP AND MOVE INTO THE SRN PLAINS THROUGH THE
   PERIOD. A DRYING TREND IS EXPECTED OVER THE SRN/CENTRAL ROCKIES
   REGION...AS UPPER RIDGING OCCURS IN THE WAKE OF THE UPPER LOW. IN
   THE PRESENCE OF THE UPPER RIDGE...ABOVE NORMAL TEMPERATURES AND A
   BROAD AREA OF MIN RH READINGS AROUND 15 PERCENT WILL OCCUR FROM THE
   DESERT SW INTO THE GREAT BASIN/CENTRAL ROCKIES.
   
   ACROSS THE ERN HALF OF THE NATION...LOW RH READINGS FROM 20-30
   PERCENT WILL SPREAD EWD WITH AN AREA OF SURFACE HIGH PRESSURE INTO
   THE GREAT LAKES/OHIO VALLEY. SLY WINDS /15-20 MPH/ WILL CONTINUE
   OVER THE NRN/CENTRAL PLAINS IN BETWEEN THE HIGH PRESSURE AND THE LEE
   TROUGH OVER ND.
   
   ...SRN/ERN MT...WRN ND...
   SIMILAR TO DAY ONE...MODERATE WLY MID LEVEL FLOW WILL SHIFT THE LEE
   TROUGH WELL EAST INTO CENTRAL ND. TO THE WEST OF THE LEE
   TROUGH...WLY SFC WINDS WILL AVERAGE 15-20 MPH AS STEEP LOW LVL LAPSE
   RATES SUPPORT TRANSFER TO THE SFC OF MODERATE WINDS. SEASONABLY LOW
   DEWPTS IN THE 30S COMBINED WITH ABOVE NORMAL TEMPERATURES IN THE
   70S/LOWER 80S WILL LEAD TO MIN RH READINGS AROUND 20 PERCENT. AREA
   WILL BE MONITORED FOR POSSIBILITY OF A CRITICAL FIRE WEATHER THREAT
   IF SUSTAINED WINDS ARE FCST STRONGER AND/OR MIN RH READINGS ARE
   SLIGHTLY LOWER.
   
   ..CROSBIE.. 09/29/2005
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

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