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Mesoscale Discussion 531
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   MESOSCALE DISCUSSION 0531
   NWS STORM PREDICTION CENTER NORMAN OK
   0424 AM CDT THU MAY 07 2015

   AREAS AFFECTED...RED RIVER VALLEY

   CONCERNING...SEVERE THUNDERSTORM WATCH 138...

   VALID 070924Z - 071030Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 138
   CONTINUES.

   SUMMARY...A STRONG WIND GUST THREAT MAY PERSIST FOR THE NEXT HOUR OR
   TWO ACCOMPANYING THE SQUALL LINE MOVING ACROSS TEXOMA.  SMALL HAIL
   IS POSSIBLE WITH THE STRONGEST CORES OVER SWRN OK.

   DISCUSSION...RADAR MOSAIC SHOWS A SQUALL LINE FROM I-40 IN E-CNTRL
   OK SSWWD INTO N-CNTRL TX AND A TRAILING OUTFLOW BOUNDARY EXTENDS WWD
   FROM THE THE N-SIDE OF THE DFW METROPLEX INTO WRN N-CNTRL TX.  WHILE
   AN ORGANIZED COLD POOL EXISTS WITH THE SQUALL LINE...APPRECIABLE
   BOUNDARY LAYER CINH AND THE RELATIVE LACK OF INTENSE CORES INVOF THE
   GUST FRONT MAY ONLY YIELD AN ISOLD STRONG WIND GUST THREAT.  FARTHER
   W...A 50 KT SLY LLJ AND ISENTROPIC LIFT ATOP THE OUTFLOW HAVE SERVED
   AS FOCI FOR STORM DEVELOPMENT NEAR THE SWRN OK I-44 CORRIDOR.  A
   STRONGER STORM OR TWO MAY RESULT IN A SMALL HAIL RISK.

   ..SMITH.. 05/07/2015


   ATTN...WFO...FWD...OUN...

   LAT...LON   33079676 33819742 34179892 34579881 34049619 33409620
               33079676 

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Page last modified: May 07, 2015
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