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ZCZC SPCFWDDY1 ALL FNUS21 KWNS 040717 DAY 1 FIRE WEATHER OUTLOOK NWS STORM PREDICTION CENTER NORMAN OK 0117 AM CST THU JAN 04 2007 VALID 041200Z - 051200Z ...NO CRITICAL AREAS... ...SYNOPSIS... AN UPPER-LEVEL LOW CENTERED NEAR THE TX BIG BEND WILL SLIDE EWD TOWARDS THE LOWER MS RIVER VALLEY. MODERATE W/NWLY FLOW IN THE WAKE OF THIS SYSTEM WILL ENHANCE DOWNSLOPE WARMING/DRYING OVER THE FAR SRN HIGH PLAINS AFTER RECENT PRECIPITATION. FURTHER W...AN UPPER-LEVEL TROUGH OFF THE PACIFIC NW COAST WILL AMPLIFY ACROSS THE WRN CONUS...WITH THE TROUGH AXIS REACHING SRN CA/GREAT BASIN BY 12Z FRIDAY. AHEAD OF THE TROUGH...A LEE SURFACE LOW WILL ORGANIZE OVER THE CNTRL HIGH PLAINS. AN ASSOCIATED COLD FRONT WILL DROP SEWD ACROSS THE CNTRL INTERMOUNTAIN WEST...AND THROUGH SRN CA/SWRN DESERTS EARLY FRIDAY. ...SRN CA... MOIST ONSHORE FLOW WILL INCREASE THROUGH THIS AFTERNOON INTO THE EVENING...WITH SCATTERED LIGHT RAIN SHOWERS AFFECTING AREAS IN VICINITY OF THE COASTAL MTNS. OVERNIGHT...GUSTY N/NWLY WINDS WILL OCCUR AFTER THE PASSAGE OF A COLD FRONT. THIS WILL LEAD TO DOWNSLOPE DRYING...WITH TEMPERATURES FALLING MAINLY INTO THE 40S. ..GRAMS.. 01/04/2007 ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
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ZCZC SPCFWDDY2 ALL FNUS22 KWNS 040800 DAY 2 FIRE WEATHER OUTLOOK NWS STORM PREDICTION CENTER NORMAN OK 0200 AM CST THU JAN 04 2007 VALID 051200Z - 061200Z ...CRITICAL FIRE WEATHER AREA FOR LA BASIN/SRN CA INTO THE LOWER CO VALLEY... ...SYNOPSIS... LARGE-SCALE TROUGH /INITIALLY FROM THE GREAT BASIN SWWD TO OFF THE CNTRL AND SRN CA COAST/ WILL UNDERGO AMPLIFICATION FRIDAY AND FRIDAY NIGHT AS IT TRANSLATES SEWD THROUGH THE FOUR CORNERS REGION AND NRN MEXICO. IN THE LOW-LEVELS...COLD FRONT ATTENDANT TO LOW PRESSURE OVER SERN CO SWWD INTO THE LOWER CO VALLEY FRIDAY MORNING...WILL PUSH SEWD THROUGH THE MIDDLE AND LOWER RIO GRANDE VALLEY AND MUCH OF THE SRN PLAINS BY SATURDAY MORNING. STRONG SUBSIDENCE IN THE WAKE OF THIS UPPER WAVE AND SURFACE FRONT WILL SUPPORT THE SWD/SEWD DEVELOPMENT OF LOW-LEVEL ANTICYCLONE FROM THE PACIFIC NW/NRN CA COAST INTO THE GREAT BASIN THROUGH THE PERIOD. ...CRITICAL FIRE WEATHER AREA - LA BASIN/SRN CA INTO THE LOWER CO VALLEY FRIDAY AND FRIDAY NIGHT... PRIMARY CONDITIONS: LOW RELATIVE HUMIDITY AND STRONG SURFACE WINDS A STRONG OFFSHORE WIND EVENT APPEARS LIKELY TO DEVELOP ACROSS CRITICAL FIRE WEATHER AREA FRIDAY INTO FRIDAY NIGHT. THERE IS SOME POTENTIAL FOR LIGHT RAIN ALONG COLD FRONT THURSDAY AND THURSDAY NIGHT. HOWEVER...RAPID DRYING IS FORECAST AS N/NE SUSTAINED WINDS INCREASE TO 20 TO 30 MPH /40 TO 50 MPH THROUGH PASSES/...REDUCING AFTERNOON RELATIVE HUMIDITIES TO 10 TO 20 PERCENT /LOCALLY 5 TO 10 PERCENT/. DAYTIME HIGHS ARE NOT EXPECTED TO BE PARTICULARLY WARM /UPPER 50S TO LOWER 60S F/...THOUGH THE STRONG WINDS AND DRYING BOUNDARY LAYER WILL RESULT IN DANGEROUS FIRE WEATHER CONDITIONS. AMBIENT WIND SPEEDS SHOULD TEND TO DIMINISH SLIGHTLY FRIDAY NIGHT...THOUGH LOCALLY STRONG GUSTS WILL PERSIST WITHIN GEOGRAPHICALLY FAVORED VALLEYS. RELATIVE HUMIDITY RECOVERY WILL REMAIN POOR THROUGH THE OVERNIGHT HOURS. ...SERN NM/PORTIONS WRN TX... INCREASING WLY TROPOSPHERIC WIND COMPONENT AHEAD OF APPROACHING MID-LEVEL TROUGH AND SURFACE COLD FRONT WILL RESULT IN DOWNSLOPE WARMING ACROSS REGION FRIDAY AFTERNOON. HIGH TEMPERATURES OF 65 TO 75 F ARE FORECAST WITH RESULTING RELATIVE HUMIDITIES FALLING TO 15 TO 20 PERCENT. HOWEVER...RECENT PRECIPITATION SHOULD PRECLUDE A MORE SUBSTANTIAL FIRE WEATHER THREAT. ..MEAD/GRAMS.. 01/04/2007 ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...