MESOSCALE DISCUSSION 1223
   NWS STORM PREDICTION CENTER NORMAN OK
   0330 PM CDT SAT JUN 12 2004
   
   AREAS AFFECTED...ERN/SRN KY..SRN WV...AND SWRN VA
   
   CONCERNING...HEAVY RAINFALL...SEVERE THUNDERSTORM WATCH 445...
   
   VALID 122030Z - 122200Z
   
   A SEVERE THUNDERSTORM WATCH CONTINUES UNTIL 21Z ACROSS SRN/ERN
   SECTIONS OF KY.
   
   WIDESPREAD THUNDERSTORMS EXTENDING FROM CENTRAL KY EWD INTO SRN
   WV/SWRN VA CONTINUE TO REDUCE INSTABILITY RAPIDLY OVER THE AREA. AN
   ISOLATED THREAT OF DAMAGING WINDS OR HAIL MAY EXIST BEYOND
   21Z...HOWEVER...OVERALL INTENSITY OF THUNDERSTORMS IS EXPECTED TO
   DECREASE.
   
   PRESENCE OF BACKDOOR COLD FRONT BANKED ALONG THE ERN SLOPES OF THE
   CENTRAL APPALACHIAN MTNS AND OROGRAPHIC INFLUENCES SUGGEST THAT
   HEAVY RAIN POTENTIAL WILL BE RELATIVELY HIGH INTO THIS EVENING
   ACROSS FAR ERN KY...SRN WV...AND SWRN VA. EXISTING SLOW-MOVING
   CONVECTION OVER THE REGION AND ADDITIONAL CONVECTIVE CLUSTERS MOVING
   IN FROM THE WEST WILL MAINTAIN HVY RAIN THREAT FOR SEVERAL HOURS.
   HOURLY RAINFALL AMOUNTS IN EXCESS OF 2"/HR ARE POSSIBLE GIVEN STRONG
   LOW-LEVEL CONVERGENCE INTO THE REGION AND PW VALUES AROUND 1.75 IN.
   WITH DIMINISHING SEVERE THUNDERSTORM POTENTIAL... ADDITIONAL WW WILL
   LIKELY NOT BE ISSUED.
   
   ..BANACOS.. 06/12/2004
   
   
   ATTN...WFO...RNK...RLX...MRX...JKL...ILN...LMK...
   
   36558110 37188104 38148119 38418211 38558399 37328534
   36848662 36708638 36658342 36578247