Click for Day 1 FireWX Areal Outline Product
ZCZC SPCFWDDY1 ALL FNUS21 KWNS 080804 DAY 1 FIRE WEATHER OUTLOOK NWS STORM PREDICTION CENTER NORMAN OK 0204 AM CST SUN FEB 08 2009 VALID 081200Z - 091200Z ...NO CRITICAL AREAS... ...SYNOPSIS... EARLY MORNING SATELLITE IMAGERY SHOWS A DEEP UPPER TROUGH OVER THE WRN STATES AND A CLOSED LOW SITUATED OFF THE COAST OF SRN CA. THIS SYSTEM WILL EJECT EWD DURING THE DAY AND LEAD TO STRENGTHENING FLOW FIELDS ALOFT /70KT AT 500MB FLOW/ OVERSPREADING THE SRN ROCKIES AND SRN HIGH PLAINS REGIONS. THIS SYSTEM WILL INDUCE LEE SIDE TROUGHING OVER THE SRN HIGH PLAINS LEADING TO A STRENGTHENING PRESSURE GRADIENT ACROSS THE CENTRAL STATES AND A PACIFIC COLD FRONT WILL MOVE EWD ACROSS NM/FAR WRN TX BY THE EVENING HOURS. AHEAD OF THIS FEATURE...A RELATIVELY MOIST AIRMASS WILL ADVECT NWWD INTO PARTS OF THE SRN HIGH PLAINS. W OF A SHARPENING DRYLINE NEAR THE PECOS RIVER VALLEY AND AHEAD OF THE COLD FRONT OVER PARTS OF SWRN TX...STRONG WINDS AND MARGINALLY LOW RH WILL ENHANCE THE FIRE WEATHER THREAT. ...SWRN TX /BIG BEND AREA/... INCREASING MID-LEVEL MOISTURE AND LIFT FROM THE APPROACHING SYSTEM WILL LIKELY INHIBIT STRONG DAYTIME HEATING DUE IN PART TO WIDESPREAD CLOUD COVER. HOWEVER...LATEST ENSEMBLE OUTPUT CONTINUES TO INDICATE MODERATELY STRONG SUSTAINED SWLY WINDS /20 MPH/ WITH HIGHER GUSTS. FORECAST SOUNDINGS INDICATE THAT MARGINALLY LOW RH VALUES /LOWER 20S/ MAY OCCUR. BUT WITH MAX TEMPS ONLY WARMING INTO THE 60S...POTENTIAL FOR CRITICALLY LOW RH /15 PERCENT/ APPEARS LOW ATTM--PRECLUDING A CRITICAL AREA. ..SMITH.. 02/08/2009 ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
Click for Day 2 FireWX Areal Outline Product
ZCZC SPCFWDDY2 ALL FNUS22 KWNS 080941 DAY 2 FIRE WEATHER OUTLOOK NWS STORM PREDICTION CENTER NORMAN OK 0341 AM CST SUN FEB 08 2009 VALID 091200Z - 101200Z ...NO CRITICAL AREAS... ...SYNOPSIS... AN UPPER TROUGH LOCATED OVER THE CENTRAL PLAINS WILL RAPIDLY MOVE NEWD TOWARDS THE UPPER MIDWEST AS ANOTHER POTENT TROUGH DIGS SEWD OVER THE W COAST INTO THE DESERT SW. IN BETWEEN THE TWO SYSTEMS...UPPER SHORTWAVE RIDGING WILL OCCUR OVER THE S-CENTRAL HIGH PLAINS STATES. A BELT OF SEASONABLY STRONG FLOW FIELDS WILL EXTEND FROM THE OHIO VALLEY SWWD TO THE SWRN U.S. AT THE SURFACE...A CYCLONE WILL MOVE NEWD TOWARDS THE UPPER MIDWEST WITH A TRAILING PRESSURE TROUGH EXTENDING TOWARDS THE SRN HIGH PLAINS. AT LEAST BORDERLINE CRITICAL CONDITIONS APPEAR PROBABLE OVER PARTS OF THE S-CENTRAL HIGH PLAINS DUE TO STRONG WINDS AND MARGINALLY LOW RH. ...S-CENTRAL HIGH PLAINS... STRONG WSWLY DOWNSLOPING WINDS AND SUFFICIENT SURFACE HEATING WILL PROMOTE BOUNDARY LAYER MIXING IN THE WAKE OF THE DEPARTING SYSTEM. MODIFIED FORECAST SOUNDINGS FOR EXPECTED MAX TEMPS INDICATE RH MAY FALL AS LOW AS THE UPPER TEENS IN AREAS...WITH VALUES 20-25 MORE WIDESPREAD. SUSTAINED WINDS IN EXCESS OF 25 MPH ARE LIKELY WITH GUSTS APPROACHING 50 MPH IN AREAS. MAIN COMPLICATING FACTOR APPEARS TO UNCERTAINTY CENTERED ON FUEL RESPONSE DUE TO D1 PRECIPITATION AMOUNTS. AS A RESULT...NEXT UPDATE WILL RE-EVALUATE THE POTENTIAL FOR A CRITICAL AREA OVER A SIZABLE PORTION OF THE S-CENTRAL HIGH PLAINS. ..SMITH.. 02/08/2009 ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...