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 140904
   
   DAY 1 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0404 AM CDT THU SEP 14 2006
   
   VALID 141200Z - 151200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR MUCH OF THE GREAT BASIN NEWD INTO
   THE CENTRAL ROCKIES...
   
   ...SYNOPSIS...
   A STRONG UPPER SYSTEM WILL DIG SEWD INTO THE WRN CONUS THROUGH THE
   PERIOD. ASSOCIATED WITH THIS SYSTEM...A SFC COLD FRONT WILL MOVE
   SLOWLY SEWD AND EXTEND FROM NRN NV INTO NRN WY DURING THE AFTERNOON
   HRS. SOUTH OF THE FRONT...SWLY WINDS FROM 20-25 MPH WITH HIGHER
   GUSTS ALONG WITH LOW RH READINGS WILL SUPPORT ANOTHER CRITICAL FIRE
   WEATHER EVENT OVER PORTIONS OF THE INTERIOR WEST. SLY WINDS WILL
   CONTINUE TO STRENGTHEN OVER THE HIGH PLAINS AS A RESULT OF A
   DEEPENING AREA OF LOW PRESSURE OVER WY. DESPITE MODERATE WIND
   FIELDS...MIN RH READINGS IN THIS REGION ARE NOT EXPECTED TO BE LOW
   ENOUGH TO WARRANT A CRITICAL FIRE WEATHER THREAT ALTHOUGH SOME AREAS
   WILL CERTAINLY SEE HEIGHTENED FIRE WEATHER CONCERNS. ELSEWHERE
   ACROSS THE NATION...SFC HIGH PRESSURE WILL PROVIDE FOR LIGHT WINDS
   AND DRY CONDITIONS EAST OF THE MS RIVER.
   
   ...CRITICAL FIRE WEATHER AREA - PORTION OF ERN CA...MUCH OF
   NV...WRN/NRN UT...AND MUCH OF WY...
   
   PRIMARY CONDITIONS: SUSTAINED SWLY WINDS FROM 20-25 MPH WITH HIGHER
   GUSTS...MIN RH READINGS AROUND 15 PERCENT...FRONTAL
   PASSAGE...ISOLATED DRY TSTMS
   
   AS A STRONG UPPER TROUGH DIGS SWD THROUGH THE PAC NW INTO THE GREAT
   BASIN THROUGH TONIGHT...MID LEVEL WIND FIELDS WILL INCREASE OVER THE
   REGION. IN ADDITION...TWO AREAS OF SFC LOW PRESSURE...ONE EAST OF
   THE SIERRA NEVADA IN WRN NV AND THE OTHER OVER NERN WY WILL DEEPEN
   THROUGH THE PERIOD. SOUTH OF A COLD FRONT THAT WILL EXTEND BETWEEN
   THESE TWO SFC LOWS...STEEP LOW LEVEL LAPSE RATES WILL SUPPORT
   MODERATE SWLY SFC WINDS. THE STRONGEST WINDS WHERE SUSTAINED SPEEDS
   OVER 25 MPH WITH GUSTS UP TO 35 MPH ARE ANTICIPATED OVER THE ERN
   SLOPES OF THE SIERRA NEVADA AND OVER CENTRAL WY. ALTHOUGH MID LEVEL
   MOISTURE IS EXPECTED TO INCREASE THROUGH THE DAY /SUPPORTING A MIX
   OF DRY AND WET TSTMS ALONG AND AHEAD OF THE FRONT AND OVER HIGHER
   TERRAIN IN THE AFTERNOON/ SFC DEWPTS ARE EXPECTED TO REMAIN IN THE
   20S TO 30S. ALONG WITH TEMPERATURES IN THE 75-85 DEG RANGE IN LOWER
   ELEVATIONS...MIN RH READINGS AROUND 15 PERCENT WILL SUPPORT A
   CRITICAL FIRE WEATHER THREAT. THE COMBINATION OF INCREASING TSTM
   COVERAGE AND WEAKENING LAPSE RATES SHOULD LIMIT THE CRITICAL FIRE
   WEATHER THREAT AFTER SUNSET.
   
   ...CENTRAL/NRN HIGH PLAINS...
   SOUTH OF A COLD FRONT THAT WILL BE LOCATED OVER THE MT/ND BORDER
   TODAY AND EAST OF THE LEE TROUGH...SLY WINDS WILL INCREASE TO
   BETWEEN 20-30 MPH BY LATE MORNING. LOW LEVEL MOISTURE RETURN WILL
   SUPPORT DEWPTS IN THE 45-55 DEG F RANGE OVER MOST OF THE AREA THIS
   AFTERNOON. WARM TEMPERATURES IN THE 80S TO LOWER 90S WILL PRODUCE
   MIN RH READINGS FROM 25-30 PERCENT WHICH ARE ABOVE CRITICAL LEVELS. 
   
   
   ...CENTRAL/ERN OK AND NRN/CENTRAL TX...
   LOW DEWPTS ARE EXPECTED AGAIN TODAY /45-55 DEG F/ AS THE SFC HIGH
   PRESSURE AXIS SLOWLY MOVES EWD AWAY FROM THE REGION. AS A RESULT OF
   THE STRENGTHENING LEE TROUGH OVER THE HIGH PLAINS...AN INCREASING
   PRESSURE GRADIENT WILL SUPPORT SUSTAINED SSELY WINDS FROM 10-15 MPH
   /STRONGEST OVER CENTRAL OK AND NWRN TX/ THIS AFTERNOON. TEMPERATURES
   IN THE MID 80S TO LOWER 90S WILL PRODUCE MIN RH READINGS FROM 20-30
   PERCENT.
   
   ..CROSBIE.. 09/14/2006
   
   ...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 140906
   
   DAY 2 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0406 AM CDT THU SEP 14 2006
   
   VALID 151200Z - 161200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR A LARGE PORTION OF THE GREAT BASIN
   REGION...
   
   ...SYNOPSIS...
   A STRONG UPPER TROUGH WILL CONTINUE TO DIG SEWD THROUGH THE WRN
   CONUS TOMORROW BEFORE BEGINNING TO EJECT EWD LATE IN THE PERIOD.
   MODERATE WINDS FIELDS/LOW RH READINGS WILL COEXIST OVER THE GREAT
   BASIN SUPPORTING ANOTHER CRITICAL FIRE WEATHER DAY OVER MUCH OF THE
   SAME REGION AS THE LAST SEVERAL DAYS. MODERATE SLY WINDS WILL OCCUR
   DOWNSTREAM OF THE UPPER TROUGH OVER MUCH OF THE PLAINS STATES.
   HIGHER RH VALUES IN THIS REGION WILL PRECLUDE A CRITICAL FIRE
   WEATHER THREAT. SFC HIGH PRESSURE WILL DOMINATE THE REMAINDER OF THE
   ERN HALF OF THE NATION WITH NO FIRE WEATHER RELATED CONCERNS.
   
   ...CRITICAL FIRE WEATHER AREA - A PORTION OF SERN CA...MUCH OF
   CENTRAL/SRN NV...NWRN AZ AND WCENTRAL/SWRN UT...
   
   PRIMARY CONDITIONS: SUSTAINED SWLY-NWLY WINDS FROM 20-30 MPH WITH
   GUSTS OVER 40 MPH...MIN RH READINGS FROM 10-15 PERCENT...FRONTAL
   PASSAGE
   
   AHEAD OF A STRONG COLD FRONT...SWLY WINDS WILL INCREASE OVER MUCH OF
   SERN CA/SRN NV AND SWRN UT/NWRN AZ DURING THE AFTERNOON. SUSTAINED
   SPEEDS FROM 20-30 MPH WILL BE COMMON WITH SPEEDS UP TO 35 MPH. WIND
   GUSTS WILL AVERAGE OVER 30 MPH WITH A FEW GUSTS AS HIGH AS 50 MPH
   OVER PORTIONS OF THE HIGH DESERT OF SERN CA. WINDS WILL SHIFT TO
   NWLY AND REMAIN STRONG IN THE WAKE OF A COLD FRONT AS IT MOVES SWD
   THROUGH PORTIONS OF ERN CA/SRN NV AND WRN UT DURING THE AFTERNOON.
   ALTHOUGH COOLER TEMPERATURES WILL OCCUR WITH THE FRONTAL
   PASSAGE...LOW DEWPT READINGS IN THE 10S/20S WILL ALSO EXIST AND
   SUPPORT MIN RH READINGS AROUND 15 PERCENT. STRONG NWLY WINDS FROM
   25-35 MPH WILL OCCUR BEHIND THE FRONT OVER CENTRAL NV/WCENTRAL UT
   DURING MOST OF THE DAY...AND THIS AREA IS BEING INCLUDED IN THE
   CRITICAL FIRE WEATHER OUTLOOK AREA AS RH READINGS SHOULD REMAIN NEAR
   15 PERCENT AS WELL. SOME PORTIONS OF THIS CRITICAL FIRE WEATHER
   OUTLOOK AREA MAY NEED TO BE UPGRADED TO EXTREMELY CRITICAL IN
   TOMORROW/S OUTLOOK.
   
   ...SRN ROCKIES...
   SUSTAINED SWLY WINDS FROM 20-25 MPH ARE ANTICIPATED TO OCCUR MUCH OF
   THE REGION DURING THE DAY AS MODERATE MID LEVEL WIND FIELDS
   OVERSPREAD THE REGION ABOVE STEEP LOW LEVEL LAPSE RATES. DESPITE
   EXPECTED MIN RH READINGS TO BE AROUND 15 PERCENT...RECENT MONSOONAL
   RAINFALL WILL PRECLUDE CRITICAL FIRE WEATHER CONDITIONS.
   
   ...ERN CO...
   TO THE WEST OF A LEE TROUGH...DOWNSLOPE FLOW WILL SUPPORT ABOVE
   NORMAL TEMPERATURES IN THE MID/UPPER 80S. LOW DEWPTS IN THE 20S/30S
   WILL PRODUCE MIN RH VALUES FROM 15-20 PERCENT. IN ADDITION...STEEP
   LOW LEVEL LAPSE RATES WILL AID IN MODERATE SWLY WINDS FROM 20-25
   MPH.
   
   ..CROSBIE.. 09/14/2006
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

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