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Mesoscale Discussion 743
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   MESOSCALE DISCUSSION 0743
   NWS STORM PREDICTION CENTER NORMAN OK
   0331 PM CDT SUN MAY 24 2015

   AREAS AFFECTED...MUCH OF AR...PORTIONS OF NERN LA

   CONCERNING...TORNADO WATCH 202...

   VALID 242031Z - 242200Z

   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 202 CONTINUES.

   SUMMARY...THE THREAT FOR DAMAGING WINDS AND A TORNADO OR TWO
   CONTINUES WITHIN VALID PORTIONS OF THE WATCH AREA.

   DISCUSSION...LINEAR CONVECTIVE SYSTEM EXTENDING FROM W-CENTRAL AR
   SEWD INTO NERN LA CONTINUES TO MOVE NEWD WITH SEVERAL SVR TSTMS
   ALONG THE LINE. IN ADDITION...SEVERAL DISCRETE CELLS HAVE DEVELOPED
   IN ADVANCE OF THIS LINE.  LARGE-SCALE ASCENT ASSOCIATED WITH AN MCV
   MOVING NEWD ACROSS THE WATCH AREA WILL PROVIDE A FAVORABLE
   BACKGROUND ENVIRONMENT...AND KINEMATIC AND THERMODYNAMIC FIELDS WILL
   ALSO BE SUPPORTIVE OF DAMAGING WINDS AND LOW-LEVEL ROTATION WITH
   BOTH DISCRETE CELLS AND QLCS CIRCULATIONS.  EFFECTIVE BULK SHEAR OF
   35-45 KTS REMAINS IN PLACE WITHIN THE WATCH AREA AND 0-1 KM SRH OF
   100 M2/S2 WAS RECENTLY SAMPLED BY THE KLZK VWP.

   ..BUNTING.. 05/24/2015


   ATTN...WFO...JAN...LZK...SHV...TSA...

   LAT...LON   32699185 32789234 33849305 34779371 35759360 36399344
               36469297 36379147 35359137 33389163 32699185 

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Page last modified: May 24, 2015
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