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Mesoscale Discussion 855
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   MESOSCALE DISCUSSION 0855
   NWS STORM PREDICTION CENTER NORMAN OK
   1249 PM CDT FRI JUN 06 2014

   AREAS AFFECTED...CENTRAL ARKANSAS

   CONCERNING...SEVERE THUNDERSTORM WATCH 239...

   VALID 061749Z - 061845Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 239
   CONTINUES.

   SUMMARY...THE DAMAGING-WIND RISK IS SPREADING EWD ACROSS CNTRL AR.

   DISCUSSION...THE LEADING CONVECTIVE LINE OF A TRAILING-STRATIFORM
   MCS CONTINUES SPREADING EWD ACROSS CNTRL AR WITH FORWARD MOTION
   AROUND 20-25 KT. THE DOWNSHEAR AIR MASS CONTINUES TO DESTABILIZE
   WITH MIDDLE 80S SFC TEMPS AMIDST LOWER 70S DEWPOINTS SUPPORTING
   AROUND 3000 J/KG MLCAPE PER A MODIFIED 12Z LZK RAOB. MID-LEVEL FLOW
   IS ONLY MODEST -- AROUND 15-20 KT -- PER LZK VWP...BUT THE STRONG
   BUOYANCY SHOULD FAVOR DOWNSHEAR REGENERATIVE CONVECTION AT THE
   LEADING EDGE OF THE COLD POOL. DMGG WINDS WILL REMAIN POSSIBLE WITH
   THIS ACTIVITY AS IT SPREADS EWD...REACHING THE LITTLE ROCK AREA IN
   THE NEXT HOUR OR SO.

   ..COHEN.. 06/06/2014


   ATTN...WFO...LZK...

   LAT...LON   34259307 35459322 35659270 35509137 34689118 34209154
               34259307 

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