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 260814
   
   DAY 1 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0314 AM CDT TUE JUN 26 2007
   
   VALID 261200Z - 271200Z
   
   ...NO CRITICAL AREAS...
   
   ...SYNOPSIS...
   A MID/UPPER-LEVEL IMPULSE /EVIDENT IN WATER VAPOR IMAGERY OVER CNTRL
   CA/ WILL LIFT SLOWLY NEWD INTO THE CNTRL/SRN GREAT BASIN BY EARLY
   WED. A NARROW BELT OF MODERATE MID-LEVEL FLOW WILL LEAD TO ENHANCED
   LOW-LEVEL FLOW ACROSS THE SRN GREAT BASIN LATE THIS AFTERNOON.
   FARTHER EAST...A POTENT MID-LEVEL SHORT WAVE TROUGH WILL PUSH EWD
   ACROSS FAR S-CNTRL CANADA. ATTENDANT COLD FRONT WILL DROP S/EWD OVER
   THE CNTRL HIGH PLAINS THIS MORNING/AFTERNOON...WITH LOW-LEVEL
   UPSLOPE FLOW OCCURRING BEHIND THE BOUNDARY.
   
   ...SRN NV/SWRN UT/NWRN AZ/SERN CA...
   MODERATE SWLY MID-LEVEL FLOW /30 TO 40 MPH AT 500 MB/ WILL SPREAD
   ACROSS THE AREA IN ASSOCIATION WITH A WEAK IMPULSE OVER CNTRL CA.
   DESPITE THE ABSENCE OF CLEARLY DISTINGUISHABLE LOW-LEVEL SYNOPTIC
   FEATURES...DEEPLY-MIXED THERMODYNAMIC PROFILES WILL AID IN ENHANCING
   SURFACE WINDS DURING THE LATE AFTERNOON/EARLY EVENING. ALTHOUGH
   SUSTAINED SPEEDS MAY APPROACH 20 MPH BRIEFLY...MOST LOCALES SHOULD
   GENERALLY HOLD AROUND 15 MPH. HOT AFTERNOON TEMPERATURES FROM THE
   MID 90S TO THE LOWER 110S WILL MAINTAIN WIDESPREAD VERY LOW MIN RH
   OF 2 TO 8 PERCENT.
   
   ...WRN CO/S-CNTRL WY W OF THE CONTINENTAL DIVIDE...
   ISOLATED TO PERHAPS WIDELY SCATTERED DRY TSTMS SHOULD DEVELOP THIS
   AFTERNOON AS LOW-LEVEL MOISTURE SPILLS W OF THE CONTINENTAL DIVIDE
   AND BECOMES MIXED WITHIN A VERY DRY ANTECEDENT AIR MASS. A NARROW N
   TO S AXIS OF HIGH-BASED CONVECTION SHOULD FORM ALONG THE WRN FRINGE
   OF HIGHER MOISTURE RETURN OVER SERN WY AND CNTRL/ERN CO. LIMITED
   INSTABILITY AND RATHER SLOW STORM MOTIONS SHOULD LIMIT OVERALL
   CONVECTIVE COVERAGE/DRY TSTM THREAT.
   
   ..GRAMS.. 06/26/2007
   
   ...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 261000
   
   DAY 2 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0500 AM CDT TUE JUN 26 2007
   
   VALID 271200Z - 281200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR NWRN NV/EXTREME NERN CA...
   
   ...SYNOPSIS...
   A LARGE-SCALE UPPER-LEVEL TROUGH WILL SLOWLY APPROACH THE PACIFIC NW
   COAST WHILE DOWNSTREAM RIDGE AXIS WILL SLOWLY SLIDE FROM THE NRN
   ROCKIES ONTO THE HIGH PLAINS. A WEAK MID-LEVEL IMPULSE /NOW OVER
   CNTRL CA/ WILL IMPINGE UPON THIS RIDGE AS IT TRACKS NEWD ACROSS THE
   GREAT BASIN TOWARDS THE NRN/CNTRL ROCKIES. IN THE LOW-LEVELS...WEAK
   UPSLOPE/ELY FLOW SHOULD SPREAD HIGHER MOISTURE SLIGHTLY FARTHER WEST
   OF THE CONTINENTAL DIVIDE FROM WRN WY TOWARDS THE FOUR CORNERS.
   
   ...CRITICAL FIRE WEATHER AREA - NWRN NV/EXTREME NERN CA...
   
   PRIMARY CONDITIONS: LOW RH / GUSTY WINDS / SEVERE DROUGHT
   
   MID-LEVEL FLOW WILL INCREASE /ALBEIT SLOWLY/ AHEAD OF LARGE-SCALE
   TROUGH APPROACHING THE PACIFIC NW COAST. THIS SHOULD RESULT IN
   AFTERNOON SWLY WINDS AROUND 15 MPH AS RH VALUES FALL TO 10 TO 15
   PERCENT. A RELATIVELY SHORT UPSWING IN WINDS SHOULD OCCUR EARLY WED
   EVENING AS A SURFACE TROUGH DEVELOPS E OF THE SIERRA MTNS AND WINDS
   VEER TO THE W/NW. THIS WOULD LIKELY OCCUR IN COMBINATION WITH LOW RH
   PRODUCING A PERIOD OF CRITICAL CONDITIONS...BEFORE RH RECOVERY
   IMPROVES.
   
   ...SRN NV/SWRN UT/NWRN AZ...
   IT WILL REMAIN HOT AND VERY DRY ACROSS THE SRN GREAT BASIN/LOWER CO
   RIVER VALLEY WITH MODEST LOW/MID-LEVEL SWLY FLOW. AFTERNOON
   TEMPERATURES WILL LIKELY REACH THE MID 90S TO LOWER 110S AGAIN WITH
   MIN RH VALUES OF 2 TO 6 PERCENT. HOWEVER...SUSTAINED AFTERNOON WIND
   SPEEDS WILL LIKELY HOLD NEAR 15 MPH.
   
   ...WRN WY SWD THROUGH FAR ERN AZ/WRN NM...
   A RATHER NARROW ZONE FOR DRY TSTMS SHOULD EXIST AT THE JUXTAPOSITION
   OF A HOT/DRY AIR MASS OVER THE GREAT BASIN/SOUTHWEST AND A MUCH MORE
   MOIST AIR MASS WITHIN AN UPSLOPE FLOW REGIME OVER THE ROCKIES.
   HOWEVER...CONVECTIVE COVERAGE WILL LIKELY REMAIN ISOLATED WITHIN
   THIS ZONE. AN EXCEPTION MAY BE ACROSS WRN WY...WHERE COVERAGE COULD
   BE ENHANCED AS A MID-LEVEL IMPULSE /CURRENTLY OVER CNTRL CA/ TRACKS
   NEWD AND INCREASES LARGE-SCALE LIFT. IF CONFIDENCE IN THIS SCENARIO
   INCREASES...PORTIONS OF THIS AREA MAY BE UPGRADED IN A FUTURE
   OUTLOOK.
   
   ..GRAMS.. 06/26/2007
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

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