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Mesoscale Discussion 297
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   MESOSCALE DISCUSSION 0297
   NWS STORM PREDICTION CENTER NORMAN OK
   0131 PM CDT SUN APR 06 2014

   AREAS AFFECTED...EAST TX...LA

   CONCERNING...SEVERE THUNDERSTORM WATCH 63...

   VALID 061831Z - 061930Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 63
   CONTINUES.

   SUMMARY...ISOLATED HAIL THREAT CONTINUES ACROSS EAST TX AND LA.

   DISCUSSION...SFC WARM FRONT IS GRADUALLY ADVANCING INLAND ALONG THE
   UPPER TX COAST.  THIS BOUNDARY APPEARS TO BE LIFTING NORTH PARTLY IN
   RESPONSE TO APPROACHING SHORT-WAVE TROUGH.  ADDITIONALLY...REGIONAL
   RADAR DATA SUGGESTS A WEAK MCV/VORT MAY BE EVOLVING NE OF ACT PER
   WEAK MID LEVEL SUBSIDENCE/DRYING SPREADING ACROSS SCNTRL TX.  IN
   RESPONSE...LOW LEVEL FLOW IS BEGINNING TO VEER ACROSS SERN TX AND
   MOIST/BUOYANT WARM SECTOR SHOULD CONTINUE TO RETURN ACROSS SERN
   TX/SRN LA.

   WHILE ISOLATED HAIL MAY ACCOMPANY THE STRONGEST ELEVATED
   UPDRAFTS...GREATER CONCERN WILL BE WITH NEAR-SFC BASED CONVECTION
   THAT EVOLVES LATER THIS AFTERNOON ALONG/SOUTH OF WARM FRONT.  GIVEN
   THE STRONG SHEAR NOTED ACROSS THIS REGION THE THREAT FOR TORNADOES
   WILL INCREASE AS SUPERCELLS ROOT INTO HIGHER THETA-E BOUNDARY LAYER.
   TORNADO WATCH WILL LIKELY BE WARRANTED LATER TO ACCOUNT FOR THIS
   THREAT.

   ..DARROW.. 04/06/2014


   ATTN...WFO...JAN...LIX...LCH...SHV...HGX...FWD...EWX...

   LAT...LON   30279697 32899815 32899264 30279163 30279697 

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