MESOSCALE DISCUSSION 1891
   NWS STORM PREDICTION CENTER NORMAN OK
   0110 PM CDT WED SEP 05 2012
   
   AREAS AFFECTED...SRN IL...IND...SWRN OH...KY
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 619...
   
   VALID 051810Z - 051915Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 619
   CONTINUES.
   
   SUMMARY...A LINE OF STORMS WILL CONTINUE EWD ACROSS THE OH RIVER
   THIS AFTERNOON...WITH A THREAT OF DAMAGING WIND AND PERHAPS SOME
   HAIL. AN ADDITIONAL WATCH IS LIKELY DOWNSTREAM OF THE EXISTING
   WATCH.
   
   DISCUSSION...STORMS EXTENDING FROM CNTRL IND INTO SRN IL ARE
   EXPECTED TO MAINTAIN INTENSITY OR STRENGTHEN THROUGH THE AFTERNOON
   AS THEY ENCOUNTER A MORE MOIST AND UNSTABLE AIR MASS TO THE SE. GPS
   PWAT SENSORS INDICATE VALUES IN EXCESS OF 1.75 INCHES OVER CNTRL AND
   WRN KY...AND MLCAPE IS APPROACHING 2000 J/KG.  ALTHOUGH MIDLEVEL
   FLOW IS WLY...NWLY 700 MB FLOW AROUND 20 KT WILL HELP TO PUSH THE
   SYSTEM IN A SEWD DIRECTION.
   
   ..JEWELL.. 09/05/2012
   
   
   ATTN...WFO...RLX...JKL...ILN...LMK...IND...PAH...
   
   LAT...LON   37528899 38048782 39228625 39978520 40248456 40138267
               39828229 39018255 37958383 37268555 36768699 36698778
               36708880 36968904 37528899