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 091622
   
   DAY 1 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   1122 AM CDT WED JUN 09 2010
   
   VALID 091700Z - 101200Z
   
   ...NO CRITICAL AREAS...
   
   EXPANDED CRITICAL WWD INTO SRN NV AND SWD INTO AZ WHERE SUSTAINED
   WIND SPEEDS ARE EXPECTED TO BE 20 TO 25 MPH. REMAINDER OF THE
   FORECAST IS ON TRACK.
   
   ..HURLBUT.. 06/09/2010
   
   .PREV DISCUSSION... /ISSUED 0250 AM CDT WED JUN 09 2010/
   
   ...SYNOPSIS...
   UPPER LEVEL LOW AND ATTENDANT TROF THAT HAS BEEN SLOWING MOVING SE
   ALONG THE BC COAST WILL FINALLY MOVE ONSHORE THE PAC NW TODAY AND
   DIG SEWD TOWARD THE NRN GREAT BASIN. MEANWHILE...UPPER RIDGE WILL
   MOVE EWD FROM THE NRN HIGH PLAINS TO THE UPPER MIDWEST WITH A TROF
   AFFECTING THE NERN CONUS. THE MAIN AREA OF CONCERN TODAY WILL
   CONTINUE TO BE THE SWRN CONUS WHERE HOT AND DRY CONDITIONS WILL
   CONTINUE AND DEEP LAYER SWLY FLOW WILL INCREASE IN RESPONSE TO THE
   NWRN TROF.
   
   ...NWRN AZ...SERN UT AND FAR W CNTRL CO...
   INCREASED DEEP LAYER SWLY FLOW COUPLED WITH THE DEVELOPMENT OF 
   SEVERAL SFC LOWS FROM SRN NV TO ERN UT TO ERN CO WILL RESULT IN
   INCREASED SFC WIND SPEEDS TODAY. DOWNSLOPE FLOW OFF OF HIGHER
   TERRAIN WILL ALSO FURTHER ENHANCE SFC WIND SPEEDS IN VALLEYS AND
   PASSES. MODEL SOUNDINGS SUGGEST DEEP WELL-MIXED LAYERS TO AROUND
   600-500 MB AND WITH MID LEVEL FLOW INCREASING TO BETWEEN 30-40
   KT...SUSTAINED SFC WINDS OF 25 MPH WITH GUSTS AROUND 30-40 MPH ARE
   EXPECTED...ESPECIALLY FROM NERN AZ INTO FAR W CNTRL CO. WILL
   CONTINUE THE CRITICAL AREA HERE WHERE HIGHEST WIND SPEEDS ARE
   EXPECTED TO COMBINE WITH RH VALUES AROUND 6-12 PERCENT. 
   
   ...FAR SERN CA TO WRN NM...
   CONDITIONS WILL BE MORE MARGINAL FURTHER S AWAY FROM THE AFFECTS OF
   THE SFC LOWS AND THE MAIN JET STREAK. SUSTAINED SFC WINDS OF AROUND
   15 MPH WITH GUSTS TO AROUND 25 MPH WILL BE LIKELY WITH RH VALUES
   FROM 5 TO 15 PERCENT.
   
   ...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 091932
   
   DAY 2 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0232 PM CDT WED JUN 09 2010
   
   VALID 101200Z - 111200Z
   
   ...NO CRITICAL AREAS...
   
   UPPER LOW NOW SEEN ON WV IMAGERY AT 19Z MOVING INTO THE CNTRL ORE
   COAST WILL SLOWLY DRIFT EWD THEN SWD INTO THE GREAT
   BASIN...AMPLIFYING THE UPPER TROUGH OVER THE WEST. THE CRITICAL AREA
   APPEARS TO BE ON TRACK...AS THE STRONGEST WINDS IN ASSOCIATION WITH
   THE UPPER TROUGH AND DEVELOPING SURFACE LOWS WILL PRIMARILY BE
   WITHIN THE CRITICAL OUTLINE. 
   
   A SECONDARY AREA WILL DEVELOP IN RESPONSE TO A DEEPENING LEE LOW IN
   SERN CO...WITH STRONGER WINDS IN NERN NM/SERN CO/FAR SWRN KS AND THE
   OK/TX PANHANDLES. HERE SWLY/SLY SURFACE WINDS OF NEAR 20 TO 25 MPH
   CAN BE ANTICIPATED...WITH DEEP MIXING HEIGHTS PROMOTING STRONGER
   GUSTS TO THE SURFACE. ALTHOUGH WIND/RH WILL LIKELY MEET CRITICAL
   CRITERIA...GREEN UP CONDITIONS AND RECENT RAINFALL WILL TEMPER THE
   THREAT.
   
   ..HURLBUT.. 06/09/2010
   
   .PREV DISCUSSION... /ISSUED 0252 AM CDT WED JUN 09 2010/
   
   ...SYNOPSIS...
   AN AMPLIFIED TROF WILL REMAIN IN PLACE OVER THE WRN CONUS AND DEEPEN
   BY THE END OF THE PERIOD WITH INCREASED SWLY FLOW ALOFT
   OVERSPREADING MUCH OF THE SWRN CONUS INTO THE NRN HIGH PLAINS. UPPER
   LEVEL RIDGING WILL MOVE EWD FROM THE UPPER MIDWEST TO THE GREAT
   LAKES BY THE END OF THE PERIOD.
   
   ...SERN CA...SRN NV...NRN AZ...SRN UT...SWRN CO AND NWRN NM...
   CONDITIONS WILL BE SIMILAR TO WEDNESDAY BUT SFC WIND SPEEDS WILL
   INCREASE FURTHER E INTO PARTS OF WRN CO AND NM. DEEPENING SFC LOWS
   OVER ERN CO AND ERN UT COUPLED WITH TERRAIN INFLUENCES WILL FURTHER
   ENHANCE SFC FLOW WITH SUSTAINED WINDS OF 20-30 MPH EXPECTED. DEEPLY
   MIXED BOUNDARY LAYER TO AROUND 500 MB IS INDICATED BY FORECAST
   SOUNDINGS WITH 40 KT MID LEVEL WINDS. THIS WILL TRANSLATE TO SFC
   GUSTS AROUND 40-45 MPH. RH VALUES WILL RANGE FROM 5 TO 15 PERCENT
   WITH HIGH TEMPERATURES MAINLY IN THE 80S AND 90S.
   
   ...FAR SERN CA...SRN AZ AND SWRN NM...
   FURTHER S MORE MARGINAL CONDITIONS ARE EXPECTED WITH WIND SPEEDS
   AROUND 15 MPH SUSTAINED GUSTING TO 25 MPH.  RH VALUES WILL ALSO BE
   SLIGHTLY HIGHER /15 TO 25 PERCENT/ FROM FAR SE CA TO SWRN AZ DUE TO
   MOISTURE ADVECTION FROM THE NRN GULF OF CA AS WINDS BECOME MORE
   S/SWLY AT THE BASE OF THE TROF. ELSEWHERE...RH VALUES FROM 5 TO 15
   PERCENT ARE EXPECTED.
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

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