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 180854
   
   DAY 1 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0354 AM CDT SUN MAY 18 2008
   
   VALID 181200Z - 191200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR MUCH OF CENTRAL/ERN MT AND FAR NRN
   WY...NWRN SD...
   
   ...SYNOPSIS...
   THE UPPER RIDGE OVER THE WRN CONUS WILL BEGIN TO BREAKDOWN TODAY AS
   A TROUGH MOVES THROUGH WRN CANADA. IN RESPONSE...MODERATE NWLY SFC
   WINDS ARE EXPECTED OVER A LARGE PORTION OF THE NRN HIGH PLAINS.
   WHERE RH READINGS WILL BE SUFFICIENTLY LOW OVER PORTIONS OF THE NRN
   HIGH PLAINS...CRITICAL FIRE WEATHER CONDITIONS WILL OCCUR. FURTHER
   SOUTH OVER THE REMAINDER OF THE PLAINS...SFC TEMPERATURES WILL WARM
   TO ABOVE SEASONAL NORMS TODAY AS THE UPPER RIDGE BEGINS BUILDING
   INTO THE REGION AND DOWNSLOPE FLOW DEVELOPS. ANOTHER DAY OF NEAR
   RECORD HIGH TEMPERATURES CAN BE EXPECTED OVER MUCH OF THE INTERIOR
   WEST UNDER THE PRESENCE OF THE STRONG UPPER RIDGE.
   HOWEVER...GENERALLY LIGHT WINDS IN THIS REGION WILL PRECLUDE
   CRITICAL FIRE WEATHER THREATS.
   
   ...CRITICAL FIRE WEATHER AREA - MUCH OF CENTRAL/ERN MT...FAR NRN
   WY...NWRN SD...
   
   PRIMARY CONDITIONS: SUSTAINED NWLY WINDS FROM 20-25 MPH WITH GUSTS
   OVER 30 MPH...MIN RH READINGS FROM 15-20 PERCENT...LONG TERM DROUGHT
   
   A SHORTWAVE TROUGH OVER WRN CANADA THIS MORNING WILL MOVE SEWD AND
   AID IN A BREAKDOWN OF THE UPPER RIDGE OVER THE NRN ROCKIES TODAY. AS
   A RESULT...VERY STEEP LOW-MID LEVEL LAPSE RATES AND STRENGTHENING
   MID LEVEL WINDS WILL COMBINE TO PRODUCE SUSTAINED NWLY WINDS TODAY
   OVER 20 MPH WITH HIGHER GUSTS. THE ERN EXTENT OF CRITICALLY STRONG
   WINDS WILL BE ALONG THE SFC LEE TROUGH/WARM FRONT EXTENDING N-S
   ALONG THE ND/MT BORDER BY LATE AFTERNOON. TO THE WEST OF THIS LEE
   TROUGH...VERY WARM TEMPERATURES IN THE 80S WILL COMBINE WITH DEWPTS
   IN THE 30S TO PRODUCE MIN RH READINGS FROM 15-20 PERCENT. IN
   ADDITION TO THE WIND/RH CONCERNS...ISOLATED DRY TSTMS WILL BE
   POSSIBLE AS HIGH-BASED CONVECTION DEVELOPS ALONG THE LEE TROUGH THIS
   AFTERNOON. ALTHOUGH PWAT VALUES SHOULD REMAIN HIGH ENOUGH TO PREVENT
   COMPLETELY DRY TSTMS...FAST TSTM MOTIONS SHOULD LEAD TO LITTLE
   PRECIP IN MOST AREAS.
   
   ...CENTRAL HIGH PLAINS OF WRN NEB/SERN WY AND ERN CO/WRN KS...
   SOUTH OF THE CRITICAL AREA...WEAKER MID LEVEL FLOW WILL LEAD TO
   WEAKER SUSTAINED WINDS/GUSTS TODAY. SUSTAINED WINDS FROM 15-20 MPH
   /STRONGEST ALONG THE IMMEDIATE FRONT RANGE/ WILL DEVELOP DURING THE
   AFTERNOON HOURS. DOWNSLOPE FLOW WILL AID IN VERY WARM TEMPERATURES
   IN THE UPPER 80S/LOWER 90S. COMBINED WITH SEASONABLY LOW
   DEWPTS...MIN RH READINGS FROM 10-15 PERCENT WILL BE PREVALENT.
   
   ..CROSBIE.. 05/18/2008
   
   ...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 180857
   
   DAY 2 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0357 AM CDT SUN MAY 18 2008
   
   VALID 191200Z - 201200Z
   
   ...NO CRITICAL AREAS...
   
   ...SYNOPSIS...
   ASSOCIATED WITH THE PASSAGE OF A SECONDARY UPPER TROUGH TOPPING THE
   UPPER RIDGE AND MOVING SEWD THROUGH THE NRN PLAINS/UPPER
   MIDWEST...GUSTY NWLY WINDS WILL DEVELOP OVER THE NRN PLAINS LEADING
   TO NEAR CRITICAL FIRE WEATHER CONDITIONS TOMORROW. MEANWHILE...WELL
   ABOVE NORMAL TEMPERATURES /NEAR RECORD LEVELS/ WILL SPREAD EWD FROM
   THE SWRN STATES INTO THE SRN/CENTRAL HIGH PLAINS IN ASSOCIATION WITH
   AN UPPER RIDGE THAT BUILDS SLOWLY EWD IN RESPONSE TO AN APPROACHING
   TROUGH OFF THE PAC NW COAST.
   
   ...NRN PLAINS...
   WITH THE PASSAGE OF ANOTHER TROUGH TOPPING THE UPPER RIDGE...AN AREA
   OF SFC LOW PRESSURE WILL MOVE SEWD THROUGH THE UPPER MS VALLEY. THE
   COMBINATION OF STEEP LOW-MID LEVEL LAPSE RATES AND A MODERATE SFC
   PRESSURE GRADIENT WILL SUPPORT NWLY WINDS FROM 20-25 MPH OVER MUCH
   OF NRN SD/ND TOMORROW. UNCERTAINTY EXISTS WITH REGARDS TO THE AMT OF
   CLOUD COVER AND AFFECTS ON TEMPERATURES/RH READINGS SUCH THAT A
   CRITICAL AREA WILL NOT BE DELINEATED ATTM.
   
   ...SRN HIGH PLAINS...
   NEAR RECORD HIGH TEMPERATURES CAN BE EXPECTED TOMORROW AS INCREASING
   LARGE SCALE SUBSIDENCE /ASSOCIATED WITH EWD SHIFT OF THE UPPER
   RIDGE/ COMBINES WITH DOWNSLOPE LOW LEVEL FLOW. ALTHOUGH SUSTAINED
   AFTERNOON WINDS ARE EXPECTED TO AVERAGE LESS THAN 15 MPH...VERY LOW
   RH READINGS AROUND 10 PERCENT WILL LEAD TO A VERY HIGH FIRE DANGER.
   
   ..CROSBIE.. 05/18/2008
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

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