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 090806
   
   DAY 1 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0306 AM CDT WED AUG 09 2006
   
   VALID 091200Z - 101200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF WY AND SRN MT...
   
   ...SYNOPSIS...
   AN UPPER TROUGH WILL MOVE FROM THE NRN ROCKIES INTO THE NRN PLAINS
   TODAY. IN ASSOCIATION WITH THIS SYSTEM...GUSTY WLY TO NWLY WINDS
   WILL DEVELOP AHEAD/BEHIND A COLD FRONT. ISOLATED DRY TSTMS WILL ALSO
   BE POSSIBLE WITH THIS SYSTEM. FURTHER SOUTH UNDER THE INFLUENCE OF
   AN UPPER RIDGE...MODERATE SLY SFC WINDS...VERY HOT TEMPERATURES AND
   LOW RH READINGS WILL SUPPORT NEAR CRITICAL FIRE WEATHER CONDITIONS
   OVER PORTIONS OF KS/OK AND NRN TX.
   
   ELSEWHERE...LOW RH READINGS AND ABOVE NORMAL TEMPERATURES WILL OCCUR
   OVER MUCH OF THE GREAT BASIN/CA AS UPPER RIDGING TEMPORARILY BUILDS
   INTO THE REGION IN THE WAKE OF THE UPPER TROUGH. ANOTHER UPPER
   TROUGH WILL APPROACH THE PAC NW LATE IN THE PERIOD...WITH A SLIGHT
   INCREASE IN WLY FLOW NOTED OVER INTERIOR REGIONS OF WA/ORE. UPPER
   RIDGING OVER MUCH OF THE SUN BELT WILL PRODUCE ABOVE NORMAL
   TEMPERATURES...BUT WEAK WINDS/SCT PRECIPITATION WILL PRECLUDE ANY
   CRITICAL FIRE WEATHER CONDITIONS.
   
   ...CRITICAL FIRE WEATHER AREA - WRN...CENTRAL AND NERN
   WY...SCENTRAL/SERN MT...
   
   PRIMARY CONDITIONS: SUSTAINED WLY WINDS AROUND 20 MPH...COLD FRONTAL
   WIND SHIFT...MIN RH VALUES FROM 5-15 PERCENT
   
   IN ASSOCIATION WITH A SEASONABLY STRONG UPPER TROUGH...WLY WINDS
   WILL INCREASE BEHIND A DRYLINE AND SOUTH OF A COLD FRONT OVER FAR
   SCENTRAL/SERN MT AND WRN/CENTRAL WY DURING THE MORNING HRS. LOW
   DEWPTS IN THE TEENS AND 20S COMBINED WITH WARM TEMPERATURES IN THE
   90S IN LOWER ELEVATIONS WILL PRODUCE MIN RH READINGS FROM 5-10
   PERCENT THIS AFTERNOON. AS A COLD FRONT MOVES SWD THROUGH
   SCENTRAL/SERN MT AND NCENTRAL/NERN WY DURING THE AFTERNOON
   HRS...THERE WILL BE A SEVERAL HR PERIOD IMMEDIATELY FOLLOWING THE
   FRONTAL PASSAGE WHERE NWLY WINDS WILL REMAIN MODERATE WITH GUSTS UP
   TO 30 MPH. WITH COOLER AIR LIKELY LAGGING...ONLY SLOW RECOVERING RH
   READINGS ARE EXPECTED. IN ADDITION THE FRONT SHOULD PROVIDE FOR A
   FOCUS ISOLATED DRY TSTMS.
   
   ...SRN PLAINS...
   WELL TO THE SOUTH OF THE NRN PLAINS SYSTEM AND UNDER THE INFLUENCE
   OF A STRONG UPPER RIDGE...TEMPERATURES WILL AGAIN AVERAGE ABOVE 100
   DEG F...WITH SOME LOCATIONS NEAR 106 DEG F. CONTINUED
   SUBSIDENCE/MIXING WILL SUPPORT MIN RH READINGS FALLING TO BETWEEN
   20-25 PERCENT OVER MUCH OF WRN/CENTRAL OK...NRN TX/ERN TX PANHANDLE
   AND WRN/CENTRAL KS. WITH THE BREAKDOWN OF THE UPPER RIDGE OVER THE
   NRN ROCKIES/HIGH PLAINS...THE LEE TROUGH OVER THE CENTRAL HIGH
   PLAINS WILL STRENGTHEN TODAY. THE RESULTANT INCREASING PRESSURE
   GRADIENT BETWEEN THE LEE TROUGH AND SFC HIGH PRESSURE OVER THE
   CENTRAL GULF COAST ALONG WITH LINGERING EFFECTS OF A MODERATE
   NOCTURNAL LOW LEVEL JET WILL BE TO SUPPORT AN INCREASE IN SLY WINDS
   OVER MUCH OF KS/OK AND NRN TX. SUSTAINED SLY WINDS WILL AVERAGE
   AROUND 15 MPH...WITH OCCASIONALLY GUSTS UP TO 25 MPH. THE
   COMBINATION OF WINDS...LONG TERM DROUGHT AND LOW RH VALUES WILL LEAD
   TO NEAR CRITICAL FIRE WEATHER CONDITIONS.
   
   ..CROSBIE.. 08/09/2006
   
   ...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 090811
   
   DAY 2 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0311 AM CDT WED AUG 09 2006
   
   VALID 101200Z - 111200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR A PORTION OF THE INTERIOR PAC
   NW/NRN GREAT BASIN...
   ...CRITICAL FIRE WEATHER AREA FOR A PORTION OF THE INTERIOR PAC NW
   FOR DRY TSTMS...
   ...CRITICAL FIRE WEATHER AREA FOR A PORTION OF THE SRN PLAINS...
   
   ...SYNOPSIS...
   ANOTHER SEASONABLY STRONG UPPER TROUGH WILL MOVE INTO THE PAC NW
   THROUGH THE PERIOD. AHEAD OF AN ASSOCIATED COLD FRONT...GUSTY SWLY
   WINDS COMBINED WITH LOW RH READINGS WILL LEAD TO CRITICAL FIRE
   WEATHER CONDITIONS OVER THE PORTIONS OF THE NRN GREAT BASIN/INTERIOR
   PAC NW. IN ADDITION...SCT DRY TSTMS WILL ALSO BE POSSIBLE OVER ERN
   ORE INTO WRN ID LATE IN THE AFTERNOON/OVERNIGHT. FURTHER SE...ABOVE
   NORMAL TEMPERATURES WILL CONTINUE OVER MUCH OF THE SRN 1/2 OF THE
   COUNTRY SOUTH OF A COLD FRONT. INCREASING SLY WINDS ALONG WITH NEAR
   RECORD HIGH TEMPERATURES OVER OK/NRN TX WILL PRODUCE ANOTHER
   CRITICAL FIRE WEATHER THREAT AREA.
   
   ...CRITICAL FIRE WEATHER AREA - NERN CA...NRN NV...MUCH OF ERN
   ORE/SWRN ID...
   
   PRIMARY CONDITIONS: SWLY WINDS FROM 20-25 MPH...MIN RH READINGS FROM
   10-15 PERCENT
   
   AHEAD OF AN UPPER TROUGH AXIS THAT WILL MOVE THROUGH THE PAC NW
   DURING THE PERIOD...SWLY SFC WINDS WILL INCREASE OVER MUCH OF THE
   NRN GREAT BASIN AND INTERIOR PAC NW. ABOVE NORMAL TEMPERATURES IN
   THE 90S WILL SUPPORT LOW RH READINGS FROM 10-15 PERCENT AHEAD OF A
   COLD FRONT WHICH IS FCST TO MOVE THROUGH ERN ORE/NRN ID DURING THE
   AFTERNOON HRS. THE COMBINATION OF MODERATE WINDS FROM 20-25 MPH WITH
   THE LOW RH READINGS WILL SUPPORT A CRITICAL FIRE WEATHER THREAT.
   WITH THE PASSAGE OF A COLD FRONT...WINDS WILL SHIFT TO A NWLY
   DIRECTION WITH ONLY SLOWLY IMPROVING RH READINGS.
   
   ...CRITICAL FIRE WEATHER AREA - ERN ORE...WRN ID...
   
   PRIMARY CONDITIONS: SCT DRY TSTMS
   
   AHEAD OF THE UPPER TROUGH AXIS AND ALONG AND JUST AHEAD OF A COLD
   FRONT...MID LEVEL MOISTURE WILL SUPPORT SCT TSTM DEVELOPMENT. AS WAS
   MENTIONED IN THE PREVIOUS PARAGRAPH...MUCH OF ERN ORE INTO SWRN ID
   WILL SEE LOW RH READINGS. THE COMBINATION OF FOCUSED LIFT ALONG THE
   FRONT/UPPER TROUGH ABOVE A DEEPLY MIXED AND DRY BOUNDARY LAYER WILL
   SUPPORT A CRITICAL DRY TSTM THREAT. TSTMS SHOULD INITIALLY FORM OVER
   ERN ORE BEFORE MOVING INTO WRN ID DURING THE EVENING/OVERNIGHT HRS.
   
   ...CRITICAL FIRE WEATHER AREA - MUCH OF CENTRAL/WRN OK...NRN TX/ERN
   TX PANHANDLE...
   
   PRIMARY CONDITIONS: SWLY WINDS FROM 15-20 MPH WITH GUSTS UP TO 25
   MPH...LONG TERM DROUGHT...MIN RH READINGS FROM 15-20 PERCENT
   
   ANOTHER HOT DAY IS EXPECTED OVER MUCH OF THE SRN PLAINS. AS THE
   UPPER TROUGH OVER THE NRN PLAINS AT THE START OF THE PERIOD MOVES
   ESEWD INTO THE UPPER MIDWEST...A COLD FRONT WILL BE PUSHED SWD INTO
   KS. A REMNANT LEE SIDE LOW PRESSURE AREA IS ANTICIPATED TO BE
   LOCATED ALONG THE FRONT OVER FAR NWRN OK/SWRN KS DURING THE PERIOD.
   MEANWHILE...HIGH PRESSURE WILL REMAIN IN NEARLY THE SAME LOCATION AS
   THE LAST FEW DAYS OVER THE NCENTRAL GULF COAST. THE RESULTANT
   INCREASE IN THE PRESSURE GRADIENT ALONG WITH A REMNANT LOW LEVEL JET
   WILL SUPPORT SUSTAINED SSWLY WINDS FROM 15-20 MPH WITH OCCASIONAL
   GUSTS OVER 25 MPH. GIVEN THE SWLY COMPONENT TO THE SFC WIND
   FIELDS...VERY HOT TEMPERATURES ARE EXPECTED WITH NEAR RECORD
   READINGS FROM 104-108 DEG F. DEEP MIXING COMBINED WITH DROUGHT/HEAT
   RELATED NEGATIVE FEEDBACK SOIL MOISTURE EFFECTS WILL SUPPORT DEWPTS
   IN THE UPPER 40S/LOWER 50S OVER THE AREA. THE RESULTANT MIN RH
   READINGS WILL BE FROM 15-20 PERCENT. DESPITE MARGINALLY STRONG WIND
   FIELDS...THE EXCESSIVE HEAT/LOW RH READINGS SUPPORTS A CRITICAL FIRE
   WEATHER THREAT.
   
   ..CROSBIE.. 08/09/2006
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

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