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 290900
   
   DAY 1 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0400 AM CDT SAT JUL 29 2006
   
   VALID 291200Z - 301200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR NERN CA/SERN OR/NWRN NV...
   ...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF CNTRL ID INTO EXTREME
   SWRN MT...
   ...CRITICAL FIRE WEATHER AREA FOR SWRN SD/PORTIONS OF PANHANDLE AND
   CNTRL NEB...
   
   ...SYNOPSIS...
   UPPER-LEVEL TROUGH OFF THE PACIFIC NW WILL REACH THE COAST TOWARDS
   SUNDAY MORNING. MODERATE MID-LEVEL FLOW WILL SPREAD SLOWLY EWD
   TODAY...WITH POTENTIALLY CRITICAL CONDITIONS ACROSS PORTIONS OF THE
   NRN GREAT BASIN. FURTHER E...A STATIONARY FRONT WILL REMAIN DRAPED
   ACROSS THE NRN PLAINS INTO THE UPPER MS RIVER VALLEY WITH A HOT AND
   RATHER DRY AIR MASS TO ITS S. A MODEST PRESSURE GRADIENT WILL EXIST
   ACROSS THE CNTRL PLAINS TO THE E OF A LEE SURFACE TROUGH.
   
   ...CRITICAL FIRE WEATHER AREA - NERN CA/SERN OR/NWRN NV...
   
   PRIMARY CONDITIONS: MODERATE WINDS / LOW RH
   
   A WARM AND DRY AIR MASS WILL REMAIN IN PLACE WITH TEMPERATURES BACK
   INTO THE UPPER 80S TO AROUND 100 THIS AFTERNOON. THIS WILL LEAD TO
   RH VALUES OF 5 TO 15 PERCENT. WINDS WILL INCREASE COMPARED TO
   FRIDAY...AS AN UPPER-LEVEL TROUGH APPROACHES THE PACIFIC NW COAST.
   ALTHOUGH MODERATELY STRONG WINDS WILL EXIST ALOFT...WEAK MID-LEVEL
   LAPSE RATES ALOFT SHOULD PREVENT WIDESPREAD MIXING OF STRONGER WINDS
   INTO THE LOW-LEVELS. NEVERTHELESS...SUSTAINED SURFACE WINDS OF 15 TO
   20 MPH SHOULD STILL OCCUR...MAINLY IN HIGHER TERRAIN LOCATIONS.
   
   ...CRITICAL FIRE WEATHER AREA - PORTIONS OF CNTRL ID INTO EXTREME
   SWRN MT...
   
   PRIMARY CONDITIONS: MODERATE WINDS / LOW RH
   
   TEMPERATURES IN THE MIDDLE 80S TO UPPER 90S WILL ALLOW RH VALUES TO
   DROP TO BETWEEN 8 AND 15 PERCENT THIS AFTERNOON. SUSTAINED SURFACE
   WINDS OF 15 TO 20 MPH APPEAR LIKELY ALONG THE SWRN SLOPES OF THE
   SAWTOOTH MTNS AND HIGHER TERRAIN OF CNTRL ID INTO FAR SWRN MT...AS
   MID-LEVEL WINDS SLOWLY INCREASE AHEAD OF A TROUGH OFF THE PACIFIC NW
   COAST. ISOLATED TSTMS MAY ALSO OCCUR...ESPECIALLY IN SWRN MT...WHERE
   TSTMS WOULD LIKELY BE DRY WITH AN INVERTED-V TYPE THERMODYNAMIC
   PROFILE.
   
   ...CRITICAL FIRE WEATHER AREA - SWRN SD/PORTIONS OF PANHANDLE AND
   CNTRL NEB...
   
   PRIMARY CONDITIONS: MODERATE WINDS / LOW RH / SEVERE DROUGHT
   
   A SIMILAR SETUP TO FRIDAY IS EXPECTED WITH CRITICAL CONDITIONS
   SHIFTED SLIGHTLY EWD...TO THE E OF A LEE SURFACE PRESSURE TROUGH.
   HOT TEMPERATURES FROM 100 TO 110 DEGREES WILL ONCE AGAIN OCCUR. DEW
   POINTS SHOULD MIX OUT INTO 40S TO MIDDLE 50S FROM W TO E. THIS WILL
   ALLOW RH VALUES TO DROP TO BETWEEN 10 AND 20 PERCENT. A MODEST
   SURFACE PRESSURE GRADIENT WILL LEAD TO SUSTAINED SURFACE WINDS
   APPROACHING 20 MPH DURING THE AFTERNOON HOURS.
   
   ...NERN OR/NRN ID/FAR NWRN MT...
   STRONGER MID/UPPER-LEVEL WINDS WILL OCCUR FURTHER N OF THE CRITICAL
   AREAS IN THE NRN GREAT BASIN REGION. HOWEVER...FORECAST SOUNDINGS
   INDICATE A MID-LEVEL INVERSION/WEAK LAPSE RATES WHICH WOULD PREVENT
   STRONG WINDS FROM REACHING THE SURFACE. A FEW AREAS IN W/SW FACING
   SLOPES MAY EXPERIENCE WINDS OF 15 TO 20 MPH FOR A BRIEF TIME AROUND
   PEAK HEATING THIS AFTERNOON. RH VALUES WILL ALSO BE MARGINALLY LOW
   DURING THIS TIME FROM 15 TO 20 PERCENT.
   
   ...LEE OF MT ROCKIES...
   ISOLATED TO WIDELY SCATTERED TSTMS ARE EXPECTED TO DEVELOP LATE THIS
   AFTERNOON ALONG THE MT ROCKIES THROUGH A COMBINATION OF DAYTIME
   HEATING AND MOIST UPSLOPE FLOW. A FEW TSTMS MAY INITIALLY BE DRY
   WITH A DEEP SUB-CLOUD LAYER MOST LIKELY IMMEDIATELY ALONG THE ERN
   SLOPES. HOWEVER...PRECIPITABLE WATER VALUES AROUND 0.75 INCHES
   CURRENTLY...ARE FORECAST TO CONTINUE TO INCREASE TOWARDS AN INCH BY
   LATE AFTERNOON.
   
   ..GRAMS.. 07/29/2006
   
   ...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 291055
   
   DAY 2 FIRE WEATHER OUTLOOK RESENT 1
   NWS STORM PREDICTION CENTER NORMAN OK
   0555 AM CDT SAT JUL 29 2006
   
   VALID 301200Z - 311200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF NERN CA/SERN OR/NRN
   NV/CNTRL AND SRN ID/WRN MT...
   
   ...SYNOPSIS...
   AN UPPER-LEVEL TROUGH ALONG THE PACIFIC NW COAST WILL LIFT
   NEWD...ACROSS THE FAR NRN ROCKIES AND SWRN CANADA. A COLD FRONT AND
   A BAND OF MODERATELY STRONG MID-LEVEL FLOW OF 30 TO 45 MPH ARE
   EXPECTED TO SPREAD ACROSS PORTIONS OF THE NRN GREAT BASIN AND NRN
   ROCKIES. FURTHER E...A LEE SURFACE PRESSURE TROUGH ALONG THE HIGH
   PLAINS SHOULD SHIFT SLOWLY EWD WITH WEAKENING WINDS IMMEDIATELY
   ADJACENT TO THE TROUGH.
   
   ...CRITICAL FIRE WEATHER AREA - PORTIONS OF NERN CA/SERN OR/NRN
   NV/CNTRL AND SRN ID/WRN MT...
   
   PRIMARY CONDITIONS: STRONG WINDS / LOW RH / VERY HIGH FIRE DANGER
   
   A WIDESPREAD AREA OF CRITICAL CONDITIONS APPEARS LIKELY ON
   SUNDAY...AS A STRONG SHORTWAVE TROUGH IS FORECAST TO LIFT NE FROM
   THE PACIFIC NW INTO SWRN CANADA. THE STRONGEST WINDS WILL LIKELY
   OCCUR IN VICINITY OF A COLD FRONT ACROSS CNTRL ID/WRN MT...WITH THE
   LOWEST RH LIKELY OCCURRING FURTHER SW IN NRN NV. SUSTAINED SURFACE
   SPEEDS OF 20 TO 25 MPH SHOULD OCCUR OVER MOST OF THE CRITICAL AREA
   DURING THE AFTERNOON/EARLY EVENING HOURS. HIGHER GUSTS APPROACHING
   40 MPH MAY ALSO OCCUR IN VICINITY OF FRONTAL PASSAGE...ESPECIALLY IN
   THE NRN PORTION OF THE CRITICAL AREA. WINDS WILL GENERALLY SHIFT
   FROM THE SW TO NW AFTER FRONTAL PASSAGE. TEMPERATURES SHOULD
   GENERALLY REACH THE 80S AND 90S AHEAD OF THE FRONT...WITH RH VALUES
   FALLING TO BETWEEN 10 AND 20 PERCENT.
   
   ...COLUMBIA BASIN OF WA...
   BREEZY CONDITIONS ARE EXPECTED IN THE COLUMBIA BASIN AFTER PASSAGE
   OF A STRONG SHORTWAVE TROUGH AND ASSOCIATED COLD FRONT. SUSTAINED
   WLY WINDS AROUND 20 TO 25 MPH ARE LIKELY AS EARLY AS LATE MORNING
   AND CONTINUING THROUGH MUCH OF THE AFTERNOON. HOWEVER...COOLER
   TEMPERATURES WILL LEAD TO HIGHER RH VALUES AND THIS WOULD TEND TO
   MITIGATE THE CRITICAL THREAT. TEMPERATURES ARE FORECAST TO REACH THE
   MIDDLE 70S TO LOWER 80S. WITH DEW POINTS GENERALLY IN THE 30S...MIN
   RH VALUES SHOULD RANGE FROM 20 TO 25 PERCENT.
   
   ...SWRN SD/NEB PANHANDLE...
   AS A LEE SURFACE PRESSURE TROUGH MOVES SLOWLY EWD...THE STRONGER
   PRESSURE GRADIENT WILL SHIFT FURTHER E AND S OF THE CNTRL HIGH
   PLAINS. WINDS IN EXCESS OF 20 MPH WILL MOST LIKELY OCCUR WHERE RH
   VALUES ARE WELL-ABOVE 20 PERCENT IN THE MOIST SECTOR. CLOSER TO THE
   TROUGH...SPEEDS AROUND 10 TO 15 MPH ARE LIKELY. WITH HOT
   TEMPERATURES CONTINUING FROM THE UPPER 90S TO AROUND 105...RH VALUES
   SHOULD DROP TO AROUND 20 PERCENT.
   
   ..GRAMS.. 07/29/2006
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

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