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Mesoscale Discussion 494
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   MESOSCALE DISCUSSION 0494
   NWS STORM PREDICTION CENTER NORMAN OK
   0247 PM CDT WED APR 30 2014

   AREAS AFFECTED...SE VA...ERN NC

   CONCERNING...TORNADO WATCH 121...

   VALID 301947Z - 302115Z

   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 121 CONTINUES.

   SUMMARY...A SEVERE THREAT SHOULD CONTINUE ACROSS SE VA AND ERN NC
   THIS AFTERNOON. A COUPLE TORNADOES AND WIND DAMAGE MAY OCCUR WITH
   THE MORE INTENSE THUNDERSTORMS.

   DISCUSSION...NUMEROUS THUNDERSTORMS ARE ONGOING ACROSS THE MCD AREA.
   THIS ACTIVITY IS LOCATED ALONG A CORRIDOR OF LOW-LEVEL MOISTURE
   WHERE SFC DEWPOINTS RANGE FROM 65 TO 70 F AND MLCAPE IS ESTIMATED IN
   THE 1000 TO 2000 J/KG RANGE. IN ADDITION...THE RALEIGH WSR-88D VWP
   SHOWS 0-6KM SHEAR OF 35 KT WITH 0-3KM STORM RELATIVE HELICITY OF 350
   M2/S2. THIS SHEAR SHOULD CONTINUE TO BE SUPPORTIVE OF SUPERCELLS AND
   POSSIBLY A TORNADO OR TWO THIS AFTERNOON. A WIND DAMAGE THREAT MAY
   ALSO EXIST WITH SHORT LINE-SEGMENTS ESPECIALLY ACROSS THE SRN PART
   OF THE WATCH OVER THE NEXT FEW HOURS.

   ..BROYLES/THOMPSON.. 04/30/2014


   ATTN...WFO...AKQ...MHX...LWX...RAH...RNK...

   LAT...LON   34387726 35067558 35587526 36477560 37597595 38177629
               38387716 38347768 37757839 36107894 35357796 34387726 

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