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FNUS21 KWNS 100827 FWDDY1 DAY 1 FIRE WEATHER OUTLOOK NWS STORM PREDICTION CENTER NORMAN OK 0226 AM CST WED MAR 10 2010 VALID 101200Z - 111200Z ...CRITICAL FIRE WEATHER AREA FOR SERN NM / LARGE PART OF SW TO N-NCNTRL TX / PARTS OF SRN OK... ...SYNOPSIS... VIGOROUS UPPER DISTURBANCE MOVING INTO NM EARLY THIS MORNING WILL RAPIDLY TRANSLATE NEWD TO CNTRL MO BY DAYBREAK THURSDAY. AT THE SURFACE...A CYCLONE WILL DEEPEN NEWD FROM NW TX TO NERN OK/SERN KS BY EARLY EVENING. AN ATTENDANT WINDSHIFT/COLD FRONT WILL PUSH EWD OVER ERN OK/TX AND A SECONDARY SURFACE TROUGH/THERMAL GRADIENT IS FORECAST TO BE OVER W-CNTRL OK EXTENDING SWWD INTO NW TX BY 00Z. STRONG WINDS AND LOW RH WILL LEAD TO A WIDESPREAD AREA OF CRITICAL FIRE WEATHER CONDITIONS OVER A LARGE PORTION OF THE SRN PLAINS. ...CRITICAL FIRE WEATHER AREA - SERN NM / LARGE PART OF SW TO N-NCNTRL TX / PARTS OF SRN OK... PRIMARY CONDITIONS: STRONG WINDS / LOW RH BELT OF STRONG 1-2 KM AGL WINDS /30-40 KTS/ ARE FORECAST ACROSS THE REGION ACCORDING TO DETERMINISTIC MODEL SUITE. OF PARTICULAR NOTE...LATEST GFS/4 KM NMM INDICATE THE JUXTAPOSITION OF LOW MIN RH / STRONG WINDS NOSING INTO S-CNTRL OK AS TEMPS WARM WITHIN MID-LEVEL DRY SLOT BEHIND EWD MOVING LOW LEVEL WINDSHIFT/COLD FRONT /E OF I-35 BY EARLY-MID AFTERNOON/. THUS...HAVE SHIFTED CRITICAL AREA NEWD TO THE RED RIVER VALLEY/ARBUCKLES MTNS REGION. FORECAST SOUNDINGS DEPICT STEEP LAPSE RATES IN THE BOUNDARY LAYER WHICH WILL AID IN DEEPER MIXING BEHIND THE WINDSHIFT AND AHEAD OF SECONDARY SURFACE TROUGH. SUSTAINED WINDS RANGING FROM 20-35 MPH /HIGHER GUSTS/ SEEM PROBABLE BEFORE NOCTURNAL COOLING COMMENCES AIDING IN RH RECOVERY. BEFORE THIS OCCURS...MIN RH VALUES RANGING FROM THE LOWER TEENS IN W TX TO THE MIDDLE 20S NEAR THE DFW METROPLEX ARE ANTICIPATED...RESULTING IN CRITICAL FIRE WEATHER CONDITIONS. ..SMITH.. 03/10/2010 ...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT... |
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