MESOSCALE DISCUSSION 0768
   NWS STORM PREDICTION CENTER NORMAN OK
   0730 PM CDT FRI MAY 08 2009
   
   AREAS AFFECTED...NORTHEAST AR/MUCH OF TN/EASTERN KY INTO SOUTHERN WV
   AND WESTERN PORTIONS OF VA/NC/SC
   
   CONCERNING...TORNADO WATCH 271...273...
   
   VALID 090030Z - 090200Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 271...273...CONTINUES.
   
   TORNADO WATCHES 271/273 CONTINUE UNTIL 04Z/06Z RESPECTIVELY.
   
   ACROSS FAR EASTERN KY/NORTHEAST TN...SUPERCELLULAR STORMS WILL
   LIKELY CONTINUE TO POSE A TORNADO/HAIL THREAT OVER THE NEXT HOUR OR
   TWO...PERHAPS INTO THE ADJACENT PORTIONS OF EXTREME SOUTHERN
   WV/WESTERN VA/WESTERN NC. EASTERN KY ACTIVITY IS OCCURRING IN CLOSE
   PROXIMITY TO MID LEVEL MCV...WITH A WARM/UNSTABLE SOUTHWESTERLY FEED
   IMPINGING ON THE PERIPHERY OF PRIOR EASTERN KY COLD POOL. THE SEVERE
   STORM THREAT SHOULD REMAIN MORE ISOLATED WITH SOUTHWARD EXTENT INTO
   THE SOUTHERN PORTION OF WW 273 ACROSS WESTERN PORTIONS OF NC/SC.
   
   FARTHER WEST...REMAINDER OF TORNADO WATCH 271 IS SCHEDULED TO
   CONTINUE UNTIL 04Z ACROSS MUCH OF TN/NORTHEAST AR. EARLIER SEVERE
   TSTMS ACROSS WESTERN TN HAVE GENERALLY BEEN ELEVATED ATOP EARLIER
   OUTFLOW/WESTERN TN SURFACE COLD POOL. EXPECTATIONS FOR STORM
   MODE/APPRECIABLE SURFACE BASED STORM DEVELOPMENT ARE QUESTIONABLE IN
   THE WAKE OF THE EARLY DAY MCS AND MCV NOW ACROSS EASTERN KY...WITH
   WATER VAPOR/SATELLITE IMAGERY IMPLYING LITTLE/UNCERTAIN LARGE SCALE
   FORCING. ALONG THESE LINES...00Z LITTLE ROCK OBSERVED RAOB AND A
   RECENT ACARS SOUNDING FROM THE MEMPHIS AREA DEPICT AN AMPLE MID
   LEVEL CAP...WHICH ADDITIONALLY PUTS ADDITIONAL SURFACE BASED TSTM
   DEVELOPMENT IN QUESTION. NEVERTHELESS...SUITE OF NUMERICAL GUIDANCE
   SUGGEST CONVECTIVE DEVELOPMENT THIS EVENING ACROSS THE WESTERN PART
   OF WW 271 ALONG THE SOUTHEAST MOVING COLD FRONT...SUCH THAT AT LEAST
   A HAIL THREAT CANNOT BE RULED OUT THIS EVENING.
   
   ..GUYER.. 05/09/2009
   
   
   ATTN...WFO...RNK...RLX...GSP...MRX...JKL...LMK...OHX...PAH...
   MEG...
   
   LAT...LON   37898213 37478041 36178074 34828171 34618281 35298378
               35498844 35439098 36409077 36538820 36678471 37788337
               37898213