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 090944
   
   DAY 1 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0444 AM CDT MON JUL 09 2007
   
   VALID 091200Z - 101200Z
   
   ...NO CRITICAL AREAS...
   
   ...SYNOPSIS...
   AN AMPLIFICATION OF THE UPPER AIR PATTERN WILL OCCUR DURING THE
   PERIOD AS A DEEPENING OF AN UPPER TROUGH MOVES SEWD THROUGH THE NRN
   PLAINS AND AN UPPER RIDGE BUILDS OVER THE INTERIOR WRN CONUS. AN
   UPPER LOW OFF THE CA COAST WILL REMAIN NEARLY STATIONARY...BUT WILL
   SUPPORT THE NWD MOVEMENT OF ANOTHER UPPER LOW /PRESENTLY OVER BAJA
   CA/. ASSOCIATED WITH THE UPPER LOW OVER BAJA...MID LEVEL MOISTURE
   WILL BE DRAWN NWD INTO CA...WITH THE ASSOCIATED THREAT FOR ISOLATED
   TSTMS /MOSTLY DRY/ OVER THE MTNS OF NRN CA AND POSSIBLY FAR SRN CA.
   ASSOCIATED WITH THE UPPER TROUGH MOVING ACROSS THE NRN
   PLAINS...BREEZY CONDITIONS WILL DEVELOP OVER THE CENTRAL ROCKIES.
   MEANWHILE VERY WARM TEMPERATURES /WITH NEAR RECORD READINGS/ WILL
   OCCUR OVER PORTIONS OF THE NRN GREAT BASIN AND PAC NW UNDER THE
   BUILDING UPPER RIDGE.
   
   ...MTNS OF NRN CA...
   AHEAD OF AN UPPER LOW WELL OFFSHORE THE CA COAST...MID LEVEL
   MOISTURE WILL GRADUALLY INCREASE AND SUPPORT ISOLATED TSTM
   DEVELOPMENT THIS AFTERNOON /MAINLY OVER THE HIGHER TERRAIN/. LACK OF
   GREATER MOISTURE SURGE AND LIMITED UPPER FORCING WILL PRECLUDE THE
   POTENTIAL FOR GREATER TSTM COVERAGE AND CRITICAL FIRE WEATHER
   THREAT.
   
   ...SRN/CENTRAL CA...
   ONSHORE FLOW WILL CONTINUE OVER THE REGION TODAY. THE RESULTANT
   THERMAL GRADIENT WILL SUPPORT GUSTY WLY WINDS UP TO 20 MPH OVER
   INTERIOR PORTIONS OF THE AREA DURING THE AFTERNOON. MIN RH READINGS
   WILL BE AROUND 15 PERCENT OVER THE HIGH DESERT AREAS OF SRN CA. LACK
   OF STRONGER SUSTAINED WINDS WILL PRECLUDE A CRITICAL FIRE WEATHER
   THREAT. IN ADDITION...MID LEVEL MOISTURE WILL INCREASE OVER FAR SRN
   CA DURING THE LATE AFTERNOON/OVERNIGHT. AN ISOLATED DRY TSTM OR TWO
   MAY DEVELOP ACROSS THE HIGHEST TERRAIN OF FAR SRN CA/NRN BAJA CA
   AHEAD OF THE APPROACHING BAJA CA UPPER SYSTEM.
   
   ...SRN WY/NRN UT AND SERN ID...
   ON THE SWRN PERIPHERY OF A STRONG UPPER TROUGH MOVING INTO THE NRN
   PLAINS...WLY WINDS WILL INCREASE OVER THE AREA THIS AFTERNOON.
   SUSTAINED WINDS WILL AVERAGE FROM 15-20 MPH WITH LOCALLY HIGHER
   GUSTS. IN ADDITION...MIN RH READINGS WILL AVERAGE FROM 10-15
   PERCENT. LACK OF STRONGER WINDS WILL PRECLUDE A CRITICAL FIRE
   WEATHER THREAT.
   
   ..CROSBIE.. 07/09/2007
   
   ...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 090946
   
   DAY 2 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0446 AM CDT MON JUL 09 2007
   
   VALID 101200Z - 111200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR DRY TSTMS OVER NRN CA/ FAR NWRN NV
   AND SRN ORE...
   
   ...SYNOPSIS...
   AN UPPER TROUGH OFF THE CA COAST WILL REMAIN IN PLACE THROUGH THE
   PERIOD. THIS SYSTEM WILL CONTINUE TO SUPPORT A NWD MOVEMENT OF MID
   LEVEL MOISTURE ASSOCIATED WITH ANOTHER UPPER LOW /LOCATED OFF THE
   NRN BAJA CA COAST AT THE START OF THE PERIOD/. THE INCREASING MID
   LEVEL MOISTURE AND ASSOCIATED LIFT WITH THIS SRN UPPER LOW WILL
   SUPPORT AN INCREASING COVERAGE OF TSTMS OVER THE HIGHER TERRAIN OF
   NRN/CENTRAL CA...NWRN NV AND FAR SRN ORE. MOST OF THESE TSTMS ARE
   EXPECTED TO BE DRY SUPPORTING A CRITICAL FIRE WEATHER THREAT.
   ELSEWHERE ACROSS THE WEST...ISOLATED DRY TSTMS WILL BE POSSIBLE OVER
    THE SRN GREAT BASIN/SRN CA HIGH DESERT IN ASSOCIATION WITH THE
   AFOREMENTIONED UPPER LOW. UPPER RIDGING OVER THE PAC NW WILL LEAD TO
   NEAR RECORD HIGH TEMPERATURES OVER WRN ORE/WA AND NEAR CRITICAL FIRE
   WEATHER CONDITIONS IN THESE AREAS. OTHERWISE...SCT PRECIPITATION AND
   NO CRITICAL FIRE WEATHER CONDITIONS ARE EXPECTED ELSEWHERE ACROSS
   THE NATION.
   
   ...CRITICAL FIRE WEATHER AREA - NRN CA...NWRN NV AND SRN ORE...
   
   PRIMARY CONDITIONS: SCT DRY TSTMS
   
   AN UPPER LOW OFF THE NRN BAJA COAST AT THE START OF THE PERIOD WILL
   MOVE NWD ALONG CA COAST DURING THE DAY. ASSOCIATED WITH THIS UPPER
   LOW...MID LEVEL MOISTURE WILL MOVE NWD THROUGH CA INTO NWRN NV AND
   SRN ORE. ALONG WITH DAYTIME HEATING AND SUFFICIENT UPPER
   FORCING...SCT TSTMS WILL DEVELOP OVER THE AREA DURING THE AFTERNOON
   MOST LIKELY IN THE HIGHER TERRAIN INITIALLY WITH REMNANT ELEVATED
   TSTMS POSSIBLY MOVING INTO LOWER ELEVATIONS OVERNIGHT. GIVEN NEAR
   RECORD WARMTH EXPECTED OVER THE AREA ON DAY 1 AND EXPECTED LOW RH
   READINGS/HIGH CLOUD BASES ON DAY2...MOST TSTMS ARE EXPECTED TO BE
   DRY LEADING TO A CRITICAL FIRE WEATHER THREAT.
   
   ...SWRN GREAT BASIN/SRN CA HIGH DESERT...
   THE SRN EDGE OF MID LEVEL MOISTURE ASSOCIATED WITH THE NWD MOVING CA
   UPPER LOW WILL LEAD TO AN INCREASE IN THE TSTM POTENTIAL OVER THE
   AREA TOMORROW. LACK OF GREATER FORCING SHOULD LIMIT THE AMT AND
   COVERAGE OF DRY TSTMS PRECLUDING A CRITICAL FIRE WEATHER THREAT.
   
   ...WRN ORE/WA...
   WITH A BUILDING UPPER RIDGE OVER THE AREA DURING THE PERIOD AND
   ASSOCIATED WWD /OFFSHORE SHIFT OF THE THERMAL TROUGH...DRY ELY WINDS
   WILL SUPPORT NEAR RECORD HIGH TEMPERATURES OVER THE AREA DURING THE
   AFTERNOON. TEMPERATURES APPROACHING 100 DEG F WILL SUPPORT MIN RH
   READINGS FROM 15-20 PERCENT. ELY WINDS WILL AVERAGE AROUND 15 MPH
   SUPPORTING NEAR CRITICAL FIRE WEATHER CONDITIONS. AREA WILL BE
   MONITORED FOR THE POSSIBILITY OF A STRONGER OFFSHORE GRADIENT AND
   NEED FOR A CRITICAL FIRE WEATHER AREA.
   
   ..CROSBIE.. 07/09/2007
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

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