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Mesoscale Discussion 885
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   MESOSCALE DISCUSSION 0885
   NWS STORM PREDICTION CENTER NORMAN OK
   0632 PM CDT SAT JUN 07 2014

   AREAS AFFECTED...SOUTHEAST ARKANSAS

   CONCERNING...SEVERE THUNDERSTORM WATCH 252...

   VALID 072332Z - 080100Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 252
   CONTINUES.

   SUMMARY...A CLUSTER OF THUNDERSTORMS OVER THE LITTLE ROCK METRO AREA
   WILL CONTINUE TO MOVE SOUTHEASTWARD...POSING A RISK FOR HAIL
   APPROACHING 1 INCH AND THUNDERSTORM WIND GUSTS AROUND 60 MPH...OVER
   THE NEXT FEW HOURS.

   DISCUSSION...A CLUSTER OF THUNDERSTORMS ACROSS THE LITTLE ROCK METRO
   AREA WILL CONTINUE TO MOVE SOUTH/SOUTHEASTWARD ACROSS WATCH 252.
   RECENT RADAR TRENDS SUGGEST THAT THE COLD POOL FROM THESE
   THUNDERSTORMS HAS SURGED AHEAD OF THE MAIN UPDRAFTS. HOWEVER...THE
   AIRMASS AHEAD OF THE COLD POOL IS CHARACTERIZED BY DEEP-LAYER SHEAR
   VALUES AROUND 40 KTS AND MLCAPE VALUES OF 1500-2000 J/KG. AS
   SUCH...A SEVERE THREAT SHOULD CONTINUE FOR THE NEXT COUPLE OF HOURS
   ACROSS SOUTHEASTERN ARKANSAS. WATCH 252 MAY NEED TO BE LOCALLY
   EXTENDED SOUTHEASTWARD TO ACCOUNT FOR CURRENT THUNDERSTORM TRENDS.

   ..MARSH/CORFIDI.. 06/07/2014


   ATTN...WFO...MEG...JAN...LZK...

   LAT...LON   34379312 34789291 35039230 35059144 34909063 34309067
               34049090 33879120 33899196 33999259 34379312 

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Page last modified: June 08, 2014
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