Storm Prediction Center
Day 1 and Day 2 Fire Weather Outlooks

   ZCZC SPCFWDDY1 ALL
   FNUS21 KWNS 101850
   
   DAY 1 FIRE WEATHER OUTLOOK RESENT 1
   NWS STORM PREDICTION CENTER NORMAN OK
   0150 PM CDT MON MAY 10 2004
   
   VALID 101200Z - 111200Z
   
   ...EXTREMELY CRITICAL FIRE WEATHER AREA FOR PORTIONS OF THE ERN
   GREAT BASIN/WASATCH FRONT...
   ...CRITICAL FIRE WEATHER AREA FOR AREAS SURROUNDING THE EXTREMELY
   CRITICAL OUTLOOK...INCLUDING THE LOWER CO RIVER VALLEY AND MUCH OF
   THE FOUR CORNERS AREA...
   
   ...SYNOPSIS...
   A STRONG UPPER TROUGH WILL DIG INTO THE WRN CONUS THROUGH THE
   PERIOD. STRONG WINDS WILL ACCOMPANY THIS SYSTEM. ALONG WITH LOW RH
   READINGS...CRITICAL TO EXTREMELY CRITICAL FIRE WEATHER CONDITIONS
   WILL BE FOUND OVER MUCH OF THE SRN/ERN GREAT BASIN/WASATCH FRONT AND
   FOUR CORNERS REGION. ADDITIONALLY FARTHER NORTH...STRONG SSELY WINDS
   WILL DEVELOP IN THE VICINITY OF A DEEPENING AREA OF LOW PRESSURE
   OVER NERN WY/SERN MT LATE THIS AFTERNOON/OVERNIGHT. INCREASING LOW
   LEVEL MOISTURE WILL LIMIT A CRITICAL FIRE WEATHER THREAT.
   
   ...EXTREMELY CRITICAL FIRE WEATHER AREA 1 - FAR NWRN AZ AND MUCH OF
   WRN UT INCLUDING THE WASATCH FRONT...
   
   PRIMARY CONDITIONS: SUSTAINED WINDS FROM 35 TO 45 MPH WITH HIGHER
   GUSTS...MIN RH READINGS FROM 8 TO 12 PERCENT
   
   VERY STRONG WINDS WILL OCCUR ON THE ERN SIDE OF A DIGGING TROUGH/LOW
   OVER THE GREAT BASIN DURING THE PERIOD. VERY WARM TEMPERATURES IN
   THE LOW LEVELS AND MID LEVEL COOLING WILL AID IN NEAR DRY ADIABATIC
   LAPSE RATES FROM THE SFC TO MID LEVELS AND MOMENTUM TRANSFER OF MID
   LEVEL WIND MAXIMUM TO THE SFC. WARM TEMPERATURES AND LOW DEWPOINTS
   WILL ALLOW FOR RH READINGS TO FALL TO BETWEEN 8 AND 12 PERCENT.
   WINDS WILL CHANGE TO A NWLY DIRECTION BEHIND A COLD FRONT OVER NWRN
   UT DURING THE LATE AFTERNOON/OVERNIGHT ALLOWING FOR GOOD RH RECOVERY
   IN THESE AREAS. HOWEVER...OVER THE REST OF WRN UT AND FAR NWRN
   AZ...STRONG SWLY WINDS SHOULD ALLOW FOR ONLY POOR RH RECOVERY.
   
   ...CRITICAL FIRE WEATHER AREA 2 - MUCH OF THE SERN CA...THE LOWER CO
   RIVER VALLEY...ERN NV/CENTRAL UT AND NRN AZ...
   
   PRIMARY CONDITIONS: SUSTAINED WINDS FROM 20 TO 35 MPH WITH HIGHER
   GUSTS...MIN RH READINGS FROM 6 TO 15 PERCENT
   
   SURROUNDING THE EXTREMELY CRITICAL AREA...A COMBINATION OF SOMEWHAT
   WEAKER WINDS AND/OR UNCERTAINTY IN THE GREENUP STATUS WILL EXIST
   OVER THIS AREA. SUSTAINED WINDS FROM 35 TO 45 MPH WITH VERY LOW RH
   READINGS WILL OCCUR OVER ERN NV...BUT UNCERTAINTY IN THE STAGE OF
   GREEN UP OVER THIS AREA WILL PRECLUDE AN EXTREMELY CRITICAL FIRE
   WEATHER THREAT. OVER THE REMAINDER OF THE AREA...STEEP LOW-MID LEVEL
   LAPSE RATES WILL AID IN SUSTAINED WINDS FROM 20 TO 35 MPH...WITH THE
   STRONGEST WINDS OVER SERN CA...SRN NV AND NWRN AZ. ABOVE NORMAL
   TEMPERATURES AND SEASONABLY LOW DEWPOINTS WILL AID MIN RH READINGS
   FROM 6 TO 15 PERCENT. WINDS ARE FORECAST TO DIMINISH OVER MUCH OF
   THE AREA WITHIN A FEW HOURS AFTER SUNSET...HOWEVER HIGHER ELEVATIONS
   WILL LIKELY SEE STRONG WINDS/POOR RH RECOVERY PERSISTING. GOOD RH
   RECOVERY IS ANTICIPATED OVER MOST OF ERN NV BEHIND A COLD FRONT.
   
   ...NWRN NM...ERN UT AND WRN CO...
   SUSTAINED WINDS AROUND 20 MPH WILL OCCUR DURING THE AFTERNOON HOURS
   ON THE ERN EXTENT OF THE INCREASING MID LEVEL WIND FIELDS. DESPITE
   LOW RH READINGS FROM 10 TO 15 PERCENT OVER MOST OF THE
   AREA...MARGINAL NATURE OF THE WINDS ALONG WITH UNCERTAINTY IN THE
   GREEN UP STAGE OVER ERN UT/WRN CO WILL PRECLUDE A CRITICAL FIRE
   WEATHER THREAT.
   
   ...SERN MT...
   DEEPENING SFC LOW WILL MOVE THROUGH THE AREA OVERNIGHT. STRONG SSELY
   WINDS WILL AID IN LOW LEVEL MOISTURE TRANSPORT. HOWEVER...WHERE THE
   WINDS SHIFT TO SLY...DOWNSLOPE WILL AID LOWERING DEWPOINTS IN THE
   40S. DESPITE SUSTAINED WINDS FROM 20 TO 35 MPH POSSIBLE...OVERALL
   MODERATE RH READINGS ARE ANTICIPATED TO PRECLUDE A CRITICAL FIRE
   WEATHER THREAT.
   
   ..CROSBIE.. 05/10/2004
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

   ZCZC SPCFWDDY2 ALL
   FNUS22 KWNS 100955
   
   DAY 2 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0455 AM CDT MON MAY 10 2004
   
   VALID 111200Z - 121200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR MUCH OF THE SRN ROCKIES...
   
   ...SYNOPSIS...
   UPPER TROUGH WILL REMAIN IN PLACE OF THE WRN STATES THROUGH THE
   PERIOD. STRONG WIND FIELDS WILL ACCOMPANY THIS SYSTEM AND ALONG WITH
   LOW RH READINGS WILL PROVIDE FOR CRITICAL FIRE WEATHER CONDITIONS TO
   MUCH OF THE SRN ROCKIES. AHEAD OF A COLD FRONT STRONG WINDS WILL BE
   FOUND OVER MUCH OF THE CENTRAL ROCKIES...HOWEVER IN THESE AREAS
   UNCERTAINTY IN THE GREEN-UP STAGE WILL PRECLUDE A CRITICAL FIRE
   WEATHER THREAT. ELSEWHERE ACROSS THE NATION...MOIST AND/OR COOL
   TEMPERATURES/MODERATE RH READINGS WILL PRECLUDE A CRITICAL FIRE
   WEATHER THREAT.
   
   ...CRITICAL FIRE WEATHER AREA 1 - MUCH OF ERN/NRN AZ...WRN AND NRN
   NM...
   
   PRIMARY CONDITIONS: SUSTAINED WINDS FROM 20 TO 30 MPH WITH GUSTS
   OVER 40 MPH...MIN RH READINGS FROM 10 TO 15 PERCENT
   
   SWLY FLOW WILL INCREASE OVER THE SRN ROCKIES AS A SHORTWAVE EJECTS
   OUT OF THE BASE OF THE WRN TROUGH. STEEP LOW LEVEL LAPSE RATES WILL
   AID IN STRONG WINDS AT THE SURFACE. WELL ABOVE NORMAL TEMPERATURES
   AND SEASONABLY LOW DEWPOINTS WILL AID IN LOW RH READINGS BELOW 15
   PERCENT. COMBINATION OF WINDS/LOW RH READINGS WILL AID IN A CRITICAL
   FIRE WEATHER THREAT. WINDS WILL WEAKEN SOMEWHAT OVERNIGHT...BUT POOR
   RH RECOVERY IS EXPECTED OVERNIGHT.
   
   ...ERN UT/WRN CO...
   STRONG WINDS WILL DEVELOP OVER THE AREA DURING THE PERIOD AHEAD OF A
   STRONG MID LEVEL VORT MAX MOVES THROUGH THE AREA. UNCERTAINTY IN THE
   OVERALL GREENUP STAGE OVER THE REGION AT THIS MOMENT WILL PRECLUDE A
   CRITICAL FIRE WEATHER THREAT....DESPITE MIN RH READINGS FROM 10 TO
   15 PERCENT.
   
   ..CROSBIE.. 05/10/2004
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

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