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 221630
   
   DAY 1 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   1130 AM CDT SAT MAY 22 2010
   
   VALID 221700Z - 231200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR SRN MOJAVE DESERT...NRN/ERN 
   AZ...MUCH OF NM...PORTIONS OF SWRN CO...
   
   NO APPRECIABLE CHANGE TO PRIOR FORECAST.  LATE MORNING OBSERVATIONAL
   DATA SHOW TEMPS STEADILY WARMING S OF A COLD FRONT /DRAPED OVER THE
   SRN GREAT BASIN INTO THE MOJAVE DESERT/ UNDER CLEAR SKIES.  THE NEXT
   IN A SERIES OF UPPER SPEED MAXIMA /LOCATED OVER THE I-15 CORRIDOR IN
   SRN CA-SRN NV/ IS CONTRIBUTING TO AMPLE BOUNDARY LAYER MIXING WITH
   WIND GUST SPEEDS ALREADY RANGING FROM 25-35 MPH ACROSS A LARGE
   PORTION OF NM...SRN CO...NRN HALF OF AZ...AND THE SRN CA DESERTS AT
   16Z.
   
   ..SMITH.. 05/22/2010
   
   .PREV DISCUSSION... /ISSUED 0318 AM CDT SAT MAY 22 2010/
   
   ...SYNOPSIS...
   AN UPPER TROUGH WILL SLOWLY DIG SWD INTO THE GREAT BASIN TODAY. A
   BELT OF STRONG MID-LEVEL WINDS WILL EXTEND FROM THE SRN CA COAST
   INTO THE NRN GREAT PLAINS...WITH WINDY CONDITIONS AT THE SFC LEADING
   TO CRITICAL FIRE WEATHER CONDITIONS ACROSS MUCH OF THE SWRN STATES
   AND PORTIONS OF THE SRN HIGH PLAINS. A BROAD UPPER RIDGE OVER THE
   ERN HALF OF THE COUNTRY WILL YIELD LIGHT WINDS AND RELATIVELY HIGH
   HUMIDITY VALUES FOR MOST AREAS. COOL CONDITIONS WILL PERSIST ACROSS
   THE PAC NW AND NRN ROCKIES.
   
   ...SRN MOJAVE DESERT...NRN/ERN  AZ...MUCH OF NM...PORTIONS OF SWRN
   CO......
   SUSTAINED SWLY WINDS OF 20-30 MPH/GUSTS TO 40 MPH WILL DEVELOP
   ACROSS MUCH OF THE REGION BENEATH STRONG MID-LEVEL FLOW AND A
   TIGHTENING SFC PRESSURE GRADIENT AS A SFC LOW RAPIDLY DEEPENS OVER
   NERN CO. THE STRONGEST WINDS WILL LIKELY EXIST ACROSS THE HIGHER
   ELEVATION PLATEAUS ACROSS NRN AZ/NM AND THE SRN HIGH PLAINS.
   DOWNSLOPE WINDS WILL ALSO LEAD TO FURTHER HEATING/DRYING ACROSS SOME
   AREAS...INCLUDING THE WRN PARTS OF THE IMPERIAL AND COACHELLA
   VALLEYS IN SRN CA. 
   
   A DRY AND UNSTABLE/WELL-MIXED BOUNDARY LAYER WILL DEVELOP RAPIDLY IN
   THE AFTERNOON. RH VALUES ARE EXPECTED TO DROP INTO THE SINGLE DIGITS
   TO LOW TEENS ACROSS MUCH OF THE REGION...PARTICULARLY IN LOWER
   ELEVATION AREAS. ALTHOUGH SFC TEMPERATURES WILL BE COOLER ACROSS NRN
   AZ AND NWRN NM...THE AIR MASS WILL REMAIN SUFFICIENTLY DRY TO YIELD
   RH VALUES IN THE LOWER TEENS.
   
   ...SERN UT...WRN AND SERN CO...WRN TX/OK PANHANDLES...
   WINDY CONDITIONS AND LOW RH VALUES ARE FORECAST ACROSS THE NRN CO
   PLATEAU AND THE SRN HIGH PLAINS. HOWEVER...PER RECENT COORDINATION
   WITH LOCAL FORECAST OFFICES...FUEL CONDITIONS ARE CURRENTLY IN
   GREENUP...AND UNFAVORABLE FOR RAPID FIRE SPREAD.
   
   ...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 221724
   
   DAY 2 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   1224 PM CDT SAT MAY 22 2010
   
   VALID 231200Z - 241200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR ERN AZ...MUCH OF NM...PORTIONS OF
   SWRN CO...
   
   FORECAST ON TRACK...NO CHANGES NEEDED ATTM.
   
   ..SMITH.. 05/22/2010
   
   .PREV DISCUSSION... /ISSUED 0348 AM CDT SAT MAY 22 2010/
   
   ...SYNOPSIS...
   A SHARP UPPER TROUGH WILL SHIFT INLAND INTO THE SRN MOJAVE DESERT
   SUNDAY AND WILL BRING COOL CONDITIONS TO MUCH OF THE REGION. STRONG
   WINDS WILL EXIST S AND E OF THIS FEATURE...BRINGING CRITICAL FIRE
   WEATHER CONDITIONS TO PORTIONS OF THE SWRN STATES. A BROAD UPPER
   RIDGE WILL REMAIN FIXED OVER THE ERN HALF OF THE NATION...WITH LIGHT
   WINDS AND A WARM/HUMID AIR MASS IN PLACE. COOL CONDITIONS WILL
   CONTINUE ACROSS THE PAC NW.
   
   ...ERN AZ...MUCH OF NM...PORTIONS OF SWRN CO...
   WINDY CONDITIONS WILL DEVELOP ONCE AGAIN OVER THE REGION AS THE
   UPPER TROUGH SHIFTS EWD. WIDESPREAD SLY TO SWLY SUSTAINED WINDS OF
   20-30 MPH APPEAR LIKELY TO DEVELOP...WITH GUSTS OF 40-50 MPH
   POSSIBLE. THE STRONGEST WINDS WILL LIKELY EXIST ACROSS THE HIGHER
   ELEVATION AREAS...INCLUDING THE SRN CO PLATEAU...BENEATH A BELT OF
   50-60 KTS MID-LEVEL FLOW. WINDS OVER THE ERN NM HIGH PLAINS WILL
   ONCE AGAIN STRENGTHEN IN RESPONSE TO A WEAK LEE SFC LOW OVER ERN CO.
   THE AIR MASS WILL CONTINUE TO REMAIN DRY...YIELDING MIN RH VALUES IN
   THE UPPER SINGLE DIGITS TO LOWER TEENS...DESPITE COOLER TEMPERATURES
   OVER NERN AZ.
   
   ...WRN/S CNTRL AZ...
   WIDESPREAD SUSTAINED WIND SPEEDS OF 15-25 MPH ARE FORECAST TO
   DEVELOP ACROSS MUCH OF THE WRN HALF OF AZ SUNDAY. THICKNESS FALLS
   WITH THE APPROACH OF THE UPPER LOW/TROUGH WILL BRING COOLER AIR INTO
   THE REGION...YIELDING RH VALUES IN THE MID TO UPPER TEENS DESPITE
   THE PRESENCE OF A DRY AIR MASS. DUE TO UNCERTAINTY IN WHETHER
   CRITICAL RH THRESHOLDS WILL BE MET...A RISK AREA WILL NOT BE ISSUED
   AT THIS TIME.
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

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