MESOSCALE DISCUSSION 0374
   NWS STORM PREDICTION CENTER NORMAN OK
   0635 PM CDT FRI APR 08 2011
   
   AREAS AFFECTED...ERN KY/NERN TN/WRN VA/NWRN NC
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 106...107...
   
   VALID 082335Z - 090030Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
   106...107...CONTINUES.
   
   SEVERE THUNDERSTORMS PRIMARILY CAPABLE OF PRODUCING LARGE HAIL WILL
   CONTINUE FOR PORTIONS OF ERN KY...NERN TN...FAR WRN VA...AND NWRN
   NC. THE THREAT WILL GRADUALLY DIMINISH EAST OF THE APPALACHIANS.
   
   A WEAK UPPER WAVE OBSERVED ON WV IMAGERY OVER ERN KY/TN HAS
   INFLUENCED CONVECTIVE DEVELOPMENT ALONG AN AREA OF SURFACE
   CONFLUENCE...NOW TRANSLATING ESEWD TO THE SPINE OF THE APPALACHIANS
   IN ADVANCE OF THE UPPER WAVE. A SEPARATE AREA OF SURFACE CONFLUENCE
   HAS BEEN NOTED FROM SWRN WV WWD INTO CNTRL KY...WHERE AGITATED CU
   HAS BEEN OBSERVED ON VISIBLE IMAGERY. HOWEVER...UPPER RIDGING AND
   SUBSIDENCE SEEMS TO BE LIMITING STRONGER CONVECTIVE DEVELOPMENT.
   STEEP MID LEVEL LAPSE RATES NEAR 7 C/KM AND AMPLE EFFECTIVE SHEAR
   NEAR 50 TO 60 KTS HAS SUPPORTED LARGE HAIL DEVELOPMENT...AND SHOULD
   CONTINUE OVER THE WW AREA.
   
   ..HURLBUT.. 04/08/2011
   
   
   ATTN...WFO...RNK...RLX...GSP...MRX...JKL...LMK...
   
   LAT...LON   36468046 36068070 36038288 35608393 36858494 38268359
               38148225 36468046