MESOSCALE DISCUSSION 0909
   NWS STORM PREDICTION CENTER NORMAN OK
   0620 PM CDT MON MAY 23 2011
   
   AREAS AFFECTED...SERN OH...WRN WV...ERN KY
   
   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 
   
   VALID 232320Z - 240045Z
   
   PORTIONS OF SERN OH...WRN WV AND ERN KY ARE BEING MONITORED FOR
   INCREASING SVR WEATHER THREAT AND POSSIBLE WW ISSUANCE.
   
   AT 2315Z...FORWARD PROPAGATING QLCS CONTINUES TO QUICKLY MOVE E
   ACROSS NRN KY/SERN IND. DOWNSTREAM AIRMASS IS CHARACTERIZED BY
   TEMPERATURES IN THE 80S/DEWPOINTS IN THE UPR 50S/LOW 60S AND MLCAPE
   VALUES AROUND 1000 J/KG. THOUGH DEEP LAYER WIND FIELDS WOULD BE MORE
   THAN SUFFICIENT FOR MCS MAINTENANCE...INSTABILITY WILL BECOME
   INCREASINGLY MARGINAL THROUGH THE EVENING. THUS...IT IS UNCERTAIN
   WHETHER AN ADDITIONAL WW WILL BE NEEDED DOWNSTREAM FROM WW 346.
   CONVECTIVE AND ENVIRONMENTAL TRENDS WILL CONTINUE TO BE MONITORED.
   
   ..GARNER.. 05/23/2011
   
   
   ATTN...WFO...PBZ...RLX...CLE...JKL...ILN...LMK...
   
   LAT...LON   40248217 40628136 40398044 39378060 37818165 37288288
               37448447 40248217