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 250925
   
   DAY 1 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0425 AM CDT WED OCT 25 2006
   
   VALID 251200Z - 261200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR INTERIOR NRN CA...
   ...CRITICAL FIRE WEATHER AREA FOR SRN CA COASTAL RANGE...
   
   ...SYNOPSIS...
   AN UPPER-LEVEL TROUGH WILL DIG SEWD FROM THE NRN GREAT BASIN TOWARDS
   THE FOUR CORNERS AND SRN ROCKIES BY EARLY THURSDAY. POTENT MID-LEVEL
   SPEED MAX ACROSS WRN ORE/NRN CA WILL MOVE SEWD ALONG THE SRN
   PERIPHERY OF THE TROUGH. SURFACE LOW PRESSURE WILL INTENSIFY AHEAD
   OF THESE FEATURES ACROSS SERN CO INTO THE OK/TX PANHANDLES.
   WHILE SURFACE HIGH PRESSURE WILL BUILD ACROSS ORE INTO THE NRN GREAT
   BASIN BEHIND A COLD FRONT. THIS WILL LEAD TO A CONTINUATION OF
   OFFSHORE FLOW ACROSS INTERIOR NRN CA AND RAPIDLY INCREASING OFFSHORE
   FLOW LATE TODAY ACROSS PORTIONS OF SRN CA.
   
   ...CRITICAL FIRE WEATHER AREA - INTERIOR NRN CA...
   
   PRIMARY CONDITIONS: VERY LOW RH / STRONG WINDS / LONG-TERM DRYNESS
   
   A STRONG SURFACE PRESSURE GRADIENT HAS AIDED IN SUSTAINED DOWNSLOPE
   NLY WINDS OF AROUND 20 TO 25 MPH AND RH VALUES NEAR 20 PERCENT
   ACROSS PORTIONS OF THE FAR NRN SACRAMENTO VALLEY THIS MORNING. AS
   DAYTIME HEATING ENSUES...CRITICALLY LOW RH WILL DEVELOP DURING MUCH
   OF THIS AFTERNOON AND EVENING. WITH AFTERNOON TEMPERATURES IN THE
   70S TO AROUND 80...MIN RH VALUES WILL LIKELY REACH 5 TO 10 PERCENT.
   THE STRONG NLY WINDS WILL SPREAD SWD THIS MORNING. ALTHOUGH...THE
   PRESSURE GRADIENT WILL GRADUALLY RELAX THIS AFTERNOON...WITH WIND
   SPEEDS CORRESPONDINGLY DIMINISHING SOMEWHAT. HOWEVER...MODERATE
   N/ELY WINDS WILL LIKELY CONTINUE OVERNIGHT AND SUPPORT RH VALUES AOB
   25 PERCENT THROUGH MUCH OF THE NIGHT.
   
   ...CRITICAL FIRE WEATHER AREA - SRN CA COASTAL RANGE...
   
   PRIMARY CONDITIONS: GUSTY WINDS / LOW RH / LONG-TERM DRYNESS
   
   AS A COLD FRONT MOVES SEWD ACROSS THE SRN GREAT BASIN/SRN CA DESERTS
   LATE THIS AFTERNOON AND EVENING...THE SURFACE PRESSURE GRADIENT
   ACROSS SRN CA WILL RAPIDLY STRENGTHEN AS HIGH PRESSURE BUILDS BEHIND
   THE FRONT. THIS WILL LEAD TO INCREASINGLY ROBUST OFFSHORE FLOW AND
   SIGNIFICANT DRYING...ESPECIALLY IN THE LATE EVENING AND OVERNIGHT.
   THE STRONGEST N/NELY WINDS WILL LIKELY OCCUR IN PASSES/CANYONS WITH
   SUSTAINED SPEEDS OF 20 TO 30 MPH AND HIGHER GUSTS TO NEAR 50 MPH
   POSSIBLE. RH VALUES WILL FALL TO AROUND 10 TO 15 PERCENT.
   
   ...MUCH OF THE FL PENINSULA...
   A DRY AIR MASS WILL REMAIN ACROSS THE FL PENINSULA...EXCEPT ALONG
   THE ATLANTIC COAST. AS TEMPERATURES WARM INTO THE UPPER 60S/70S...RH
   VALUES WILL FALL TO AROUND 30 TO 35 PERCENT. A WEAK SURFACE PRESSURE
   GRADIENT WILL HELP HOLD AFTERNOON WIND SPEEDS BELOW 15
   MPH...PRECLUDING A CRITICAL AREA ISSUANCE.
   
   ..GRAMS.. 10/25/2006
   
   ...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 250928
   
   DAY 2 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0428 AM CDT WED OCT 25 2006
   
   VALID 261200Z - 271200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR SRN CA COASTAL RANGE...
   
   ...SYNOPSIS...
   AN UPPER-LEVEL LOW EXPECTED TO BE ACROSS SRN CO/NRN NM THURSDAY
   MORNING SHOULD SLIDE EWD TOWARDS THE MID-MS RIVER VALLEY. SURFACE
   LOW PRESSURE WILL TRACK EWD FROM THE OK/TX PANHANDLES INTO NRN AR
   WITH AN ASSOCIATED DRYLINE AND COLD FRONT FORECAST TO SURGE SEWD
   ACROSS THE SRN PLAINS. A LARGE AREA OF HIGH PRESSURE WILL REMAIN
   ACROSS THE CNTRL INTERMOUNTAIN WEST. A MODERATE SURFACE PRESSURE
   GRADIENT WILL AID IN CONTINUED DRY OFFSHORE FLOW ACROSS SRN CA.
   
   ...CRITICAL FIRE WEATHER AREA - SRN CA COASTAL RANGE...
   
   PRIMARY CONDITIONS: VERY LOW RH / MODERATE WINDS / LONG-TERM DRYNESS
   
   CRITICAL CONDITIONS SHOULD BE ONGOING THURSDAY MORNING MAINLY IN
   CANYONS AND PASSES OF THE SRN CA COASTAL RANGE. THE SURFACE PRESSURE
   GRADIENT SHOULD WEAKEN SOMEWHAT DURING THE AFTERNOON AND NOT BE
   QUITE AS STEEP THURSDAY NIGHT. THUS...SUSTAINED WINDS SHOULD DROP TO
   AROUND 15 TO 20 MPH...WITH LOCAL GUSTS AROUND 30 TO 40 MPH.
   HOWEVER...A LONG DURATION OF CRITICALLY LOW RH /AOB 15 PERCENT/ IS
   EXPECTED ALONG AND DOWNWIND OF THE COASTAL RANGE WITH CONTINUED
   N/NELY DOWNSLOPE FLOW LEADING TO WARM TEMPERATURES AND VERY LOW DEW
   POINTS. WITH TEMPERATURES IN THE 70S AND 80S DURING THE
   AFTERNOON...MIN RH VALUES SHOULD BOTTOM OUT AROUND 5 PERCENT. VERY
   POOR RH RECOVERY IS EXPECTED OVERNIGHT IN MANY LOCALES WITH RH
   VALUES AOB 20 PERCENT.
   
   ...INTERIOR NRN CA...
   POOR RH RECOVERY IS EXPECTED THURSDAY MORNING AS MODERATE DOWNSLOPE
   N/NELY FLOW CONTINUES. THIS MAY LEAD TO LOCALIZED CRITICAL
   CONDITIONS THURSDAY AFTERNOON. AS TEMPERATURES WARM INTO THE 70S AND
   LOWER 80S...MIN RH VALUES SHOULD DROP TO AROUND 10 PERCENT.
   HOWEVER...SUSTAINED WINDS SHOULD CONTINUE A GRADUAL WEAKENING TREND
   AS THE SURFACE PRESSURE GRADIENT WANES. SUSTAINED SPEEDS OF AROUND
   20 TO 25 MPH MAY STILL OCCUR ACROSS LOCALLY FAVORED CANYONS/HILLS.
   
   ...SERN NM INTO THE S PLAINS OF NWRN TX...
   ALTHOUGH MOST OF THIS REGION HAS RECEIVED SIGNIFICANT RAINFALL IN
   BOTH THE SHORT AND LONG-TERM...VERY STRONG WINDS AND LOW RH MAY LEAD
   TO LOCALIZED CRITICAL CONDITIONS. STRENGTHENING WLY WINDS SHOULD BE
   ONGOING BEHIND A DRY LINE AND TO THE S OF INTENSE LOW PRESSURE
   ACROSS THE OK/TX PANHANDLES. WINDS WILL BECOME NWLY BY LATE
   MORNING/EARLY AFTERNOON AS A COLD FRONT SURGES SEWD. SUSTAINED
   SPEEDS OF 25 TO 35 MPH APPEAR LIKELY. THE COMBINATION OF DOWNSLOPE
   WARMING/SUBSIDENCE SHOULD LEAD TO TEMPERATURES REACHING THE 60S/70S
   AND DEW POINTS DROPPING INTO THE TEENS/LOWER 20S...WITH MIN RH
   VALUES OF 8 TO 15 PERCENT.
   
   ..GRAMS.. 10/25/2006
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

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