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Mesoscale Discussion 350
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   MESOSCALE DISCUSSION 0350
   NWS STORM PREDICTION CENTER NORMAN OK
   0742 AM CDT MON APR 14 2014

   AREAS AFFECTED...SOUTH CENTRAL THROUGH SERN TX AND PART OF WRN LA

   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 

   VALID 141242Z - 141445Z

   PROBABILITY OF WATCH ISSUANCE...40 PERCENT

   SUMMARY...A THREAT FOR MAINLY ISOLATED HAIL IS POSSIBLE THROUGH THE
   MORNING AS ADDITIONAL STORMS DEVELOP ALONG AND NORTH OF TWO SURFACE
   BOUNDARIES ADVANCING SWD INTO SOUTH CENTRAL TO SERN TX AND WRN PARTS
   OF LA.

   DISCUSSION...REGIONAL RADAR IMAGERY SHOWED A STORM HAD DEVELOPED IN
   SOUTHEAST TX AT THE INTERSECTION OF A SWD MOVING COLD FRONT AND A
   CONVECTIVE OUTFLOW EXTENDING SWWD FROM NRN LA.  THIS STORM PRODUCED
   0.88 INCH DIAMETER HAIL CLOSE TO 12Z IN HOUSTON COUNTY TX. 
   ADDITIONAL STORMS HAD DEVELOPED ALONG THE SWD MOVING COLD FRONT SWWD
   INTO SOUTH CENTRAL TX.  THIS TREND IS EXPECTED TO PERSIST AS THE
   COLD FRONT AND CONVECTIVE OUTFLOW BOUNDARY EACH ADVANCE SWD INTO A
   CORRIDOR OF MODERATE INSTABILITY EXTENDING FROM SOUTH TO EAST TX
   INTO LA.  EFFECTIVE BULK SHEAR AROUND 50 KT WILL SUPPORT ORGANIZED
   STORMS.  GIVEN THE STEADY SWD MOVEMENT OF THE BOUNDARIES...STORMS
   SHOULD CONTINUE TO BE UNDERCUT...BECOMING ELEVATED N OF THE
   BOUNDARIES.

   ..PETERS/THOMPSON.. 04/14/2014


   ATTN...WFO...LCH...SHV...HGX...FWD...CRP...EWX...

   LAT...LON   29500024 30349864 30799644 31679515 31969417 32169302
               32179259 31169267 30589292 29409563 28199760 27749827
               28499985 29500024 

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Page last modified: April 14, 2014
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