MESOSCALE DISCUSSION 1181
   NWS STORM PREDICTION CENTER NORMAN OK
   0622 PM CDT WED JUN 17 2009
   
   AREAS AFFECTED...PARTS OF SERN KY / ERN TN / WRN NC / SC UPSTATE
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 439...
   
   VALID 172322Z - 172345Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 439
   CONTINUES.
   
   SEVERE THREAT WILL LIKELY CONTINUE BEYOND 00Z ACROSS PARTS OF ERN TN
   / WRN NC / AND PERHAPS THE UPSTATE OF SC.  WW EXTENSION-IN-TIME OR A
   NEW WW MAY NEED TO BE CONSIDERED PRIOR TO WW EXPIRATION.
   
   RADAR MOSAIC SHOWS SEVERAL CLUSTERS OF ONGOING SEVERE TSTMS ACROSS
   PARTS OF SRN KY AND ERN TN WITH UPSCALE GROWTH EXPECTED TO CONTINUE
   WITH TIME.  THIS ACTIVITY MAY BE PARTIALLY AIDED BY WEAK IMPULSE
   /LEFTOVER FROM LAST NIGHT/S ACTIVITY OVER SRN MO/ CRESTING UPPER
   RIDGE OVER PARTS OF WRN TN/KY.  THIS LOW AMPLITUDE FEATURE IS
   EXTRAPOLATED TO MOVE ESEWD ACROSS THE MID SOUTH THE NEXT FEW HOURS. 
   WITH A VERY MOIST AND STRONGLY UNSTABLE AIRMASS ALREADY IN PLACE
   AMIDST STRONG NWLY FLOW ALOFT...EXPECTING THESE STORMS TO GENERALLY
   MAINTAIN VIGOR/ORGANIZATION FOR AT LEAST ANOTHER FEW HOURS WITH AN
   ATTENDANT DMGG WIND/LARGE HAIL THREAT.
   
   ..SMITH.. 06/17/2009
   
   
   ATTN...WFO...GSP...MRX...JKL...FFC...
   
   LAT...LON   36568332 36168277 34878200 34478227 34448280 34668349
               35128396 35628434 36088461 36468465 36918444 36918414
               36708359 36568332