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 100809
   
   DAY 1 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0309 AM CDT TUE JUL 10 2007
   
   VALID 101200Z - 111200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR DRY THUNDERSTORMS OVER SRN OR/NRN
   CA/WRN AND CNTRL NV...
   ...CRITICAL FIRE WEATHER AREA FOR WARM AND DRY OFFSHORE FLOW WRN
   OR/WRN WA...
   
   ...SYNOPSIS...
   BLOCKING PATTERN CONTINUES OVER THE WRN U.S. WITH A STRONG UPPER
   RIDGE COVERING THE EASTERN PACIFIC AND WRN STATES...WHILE A CUTOFF
   LOW OVER THE ERN PACIFIC MEANDERS SLOWLY NEWD TOWARD THE NRN CA
   COAST. MIDLEVEL MOISTURE WILL INCREASE AS THE UPPER LOW APPROACHES
   THE COASTLINE THIS AFTERNOON...BRINGING AFTERNOON/EVENING
   THUNDERSTORMS WITH LITTLE OR NO PRECIPITATION TO SRN ORE THROUGH
   WRN/CNTRL NV. FARTHER NORTH...OFFSHORE FLOW EMANATING FROM CANADIAN
   SURFACE HIGH PRESSURE EXTENDING SWD INTO THE COLUMBIA BASIN AND NRN
   ROCKIES WILL BRING VERY WARM AND DRY OFFSHORE CONDITIONS TO WRN ORE
   AND WRN WA.
   
   ELSEWHERE AROUND THE NATION AN UPPER TROUGH CONTINUES TO ADVANCE
   THROUGH THE NRN PLAINS...WHILE A SEASONABLY MOIST AND UNSTABLE
   AIRMASS WILL BRING THUNDERSTORMS TO MUCH OF THE CNTRL AND ERN U.S.
   
   ...CRITICAL FIRE WEATHER AREA - ...SRN OR...NRN CA...WRN AND CNTRL
   NV......
   
   PRIMARY CONDITIONS: DRY THUNDERSTORMS WITH GUSTY/ERRATIC SURFACE
   WINDS NEAR THUNDERSTORMS
   
   EARLY MORNING WATER VAPOR IMAGERY SHOWS MID/UPPER LEVEL MOISTURE
   STREAMING NWD BETWEEN FOUR CORNERS RIDGE AND ERN PACIFIC CUTOFF.
   WARM AIRMASS COMBINED WITH SYNOPTIC SCALE ASCENT ASSOCIATED WITH
   APPROACHING CUTOFF WILL LEAD TO THE DEVELOPMENT OF AFTERNOON AND
   EARLY EVENING THUNDERSTORMS OVER SRN ORE AND NRN CA. THUNDERSTORMS
   ARE ALSO EXPECTED TO DEVELOP OVER THE SIERRA MTNS...WITH ISOLATED
   THUNDERSTORMS POSSIBLE IN TERRAIN FAVORABLE LOCATIONS TOWARD CNTRL
   NV. RELATIVELY DRY LOW LEVELS WILL RESULT IN MANY THUNDERSTORMS
   PRODUCING LITTLE OR NO SURFACE PRECIPITATION...AND LOCALLY
   STRONG/GUSTY OUTFLOW WINDS. MOST OF THE STORMS OVER THE SIERRA RANGE
   AND NV SHOULD DISSIPATE QUICKLY AFTER SUNSET...WHILE THE BETTER
   MID/UPPER LEVEL FORCING MAY ALLOW STORMS OVER NRN CA/SRN ORE TO
   CONTINUE SEVERAL HOURS AFTER SUNSET.
   
   ...CRITICAL FIRE WEATHER AREA - ...WRN WA...WRN OR......
   
   PRIMARY CONDITIONS: VERY WARM AND DRY OFFSHORE PATTERN
   
   SURFACE HIGH PRESSURE EAST OF THE CASCADES WILL LEAD TO VERY WARM
   AND DRY OFFSHORE FLOW TODAY THROUGHOUT WRN ORE AND WRN WA.  MAXIMUM
   TEMPERATURES WILL REACH THE 90S THROUGH WRN WA AND AROUND 100 IN WRN
   ORE. WINDS WILL BE FROM THE NORTHEAST AT 10 TO 20 MPH...BUT LOCALLY
   GUSTING TO 25 MPH IN TERRAIN FAVORED LOCATIONS. THE COMBINATION OF
   MINIMUM RH IN THE TEENS AND VERY WARM SURFACE TEMPERATURES WARRANTS
   A CRITICAL AREA.
   
   ...NERN UT...
   ISOLATED TO SCATTERED THUNDERSTORMS ARE EXPECTED ALONG THE PERIPHERY
   OF THE FOUR CORNERS RIDGE TODAY. THE COMBINATION OF MIDLEVEL
   MOISTURE AND INSTABILITY ARE SUFFICIENT FOR AFTERNOON/EARLY EVENING
   THUNDERSTORMS OVER THE UINTA MOUNTAIN REGION.  FORECAST SOUNDINGS
   PREDICT A DEEP INVERTED-V PROFILE AND SUFFICIENT INSTABILITY FOR
   LIGHTNING...BUT LITTLE OR NO PRECIPITATION.  THE ABSENCE OF A LARGE
   SCALE FOCUSING MECHANISM PRECLUDES THE ISSUANCE OF A CRITICAL AREA.
   
   ..BRIGHT.. 07/10/2007
   
   ...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 100922
   
   DAY 2 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0422 AM CDT TUE JUL 10 2007
   
   VALID 111200Z - 121200Z
   
   ...CRITICAL FIRE WEATHER AREA FOR DRY THUNDERSTORMS OVER SRN OR/NERN
   CA/WRN NV...
   
   ...SYNOPSIS...
   LITTLE CHANGE IN THE OVERALL PATTERN IS EXPECTED WEDNESDAY. STRONG
   HIGH PRESSURE ALOFT REMAINS OVER THE WRN U.S. WHILE A CUTOFF UPPER
   LOW NEAR THE CA COAST CONTINUES TO ADVECT MIDLEVEL MOISTURE INTO THE
   GREAT BASIN AND PACIFIC NORTHWEST. THE OFFSHORE FLOW IN THE PACIFIC
   NORTHWEST WEAKENS WEDNESDAY AFTERNOON...BUT WARM AND DRY CONDITIONS
   ARE EXPECTED TO PERSIST.
   
   AN UPPER TROUGH MOVES FROM THE NRN PLAINS INTO THE GREAT LAKES
   REGION WEDNESDAY...PUSHING A COLD FRONT TOWARD NEW ENGLAND AND THE
   SRN APPALACHIANS. SCATTERED SHOWERS AND THUNDERSTORMS ARE AGAIN
   EXPECTED FROM THE SRN PLAINS THROUGH NEW ENGLAND AND THE SOUTHEAST.
   
   ...CRITICAL FIRE WEATHER AREA - ...SRN OR...NRN CA...WRN NV......
   
   PRIMARY CONDITIONS: DRY THUNDERSTORMS WITH GUSTY/ERRATIC WINDS NEAR
   THUNDERSTORMS
   
   AS THE ERN PACIFIC UPPER LOW MEANDERS ALONG THE CNTRL/NRN CA COAST
   MIDLEVEL MOISTURE CONTINUES TO ADVECT NWD THROUGH THE GREAT BASIN
   AND INTO THE PACIFIC NORTHWEST. AN UPPER LEVEL IMPULSE PRESENTLY
   OVER BAJA IS EXPECTED TO MOVE NWD ALONG THE WRN PERIPHERY OF THE
   UPPER RIDGE...REACHING NRN CA/SWRN ORE WEDNESDAY AFTERNOON. ASCENT
   WITH THIS MID LEVEL FEATURE COMBINED WITH MODERATE MIDLEVEL
   MOISTURE/INSTABILITY WILL LEAD TO HIGH BASED AFTERNOON/EVENING
   THUNDERSTORMS FROM SWRN ORE INTO NRN CA AND WRN NV. WHILE SOME
   STORMS OVER THE INTERIOR VALLEYS OF SWRN ORE MAY YIELD SURFACE
   RAINFALL...THERMODYNAMICS SHOULD BE FAVORABLE FOR INTENSE
   CLOUD-TO-GROUND LIGHTNING. FARTHER EAST AND SOUTH THUNDERSTORM
   COVERAGE WILL GRADUALLY DECREASE...BUT LESS LOW/MID LEVEL MOISTURE
   INCREASES THE POTENTIAL FOR DRY THUNDERSTORMS WITH LITTLE OR NO
   RAINFALL.
   
   ...WRN WA/WRN OR...
   SURFACE HIGH PRESSURE OVER THE COLUMBIA BASIN AND NORTHERN ROCKIES
   SHIFTS EWD WEDNESDAY...DECREASING THE OFFSHORE FLOW. TEMPERATURES
   WILL REMAIN WELL ABOVE NORMAL WITH AFTERNOON HIGHS MAINLY IN THE
   LOWER 90S THROUGHOUT WRN OR AND WRN WA. AFTERNOON WINDS WILL
   GENERALLY BE BELOW 10 MPH AND INCREASING MOISTURE SHOULD MAINTAIN
   MINIMUM RH ABOVE 20 PERCENT.
   
   ...ECNTRL UT/WCNTRL CO...
   ISOLATED TO SCATTERED THUNDERSTORMS ARE AGAIN EXPECTED IN THE CNTRL
   ROCKIES WEDNESDAY AFTERNOON AND EVENING. RELATIVELY DRY LOW LEVELS
   AND HIGH CLOUD BASES WILL MINIMIZE SURFACE RAINFALL WITH THE
   POTENTIAL FOR ISOLATED DRY THUNDERSTORMS.
   
   ..BRIGHT.. 07/10/2007
   
   ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
   
      

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