MESOSCALE DISCUSSION 2196
   NWS STORM PREDICTION CENTER NORMAN OK
   1226 PM CDT TUE SEP 20 2011
   
   AREAS AFFECTED...SERN GA
   
   CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY 
   
   VALID 201726Z - 201830Z
   
   CLUSTERS OF STORMS LIFTING NWD ACROSS SERN GA MAY ACQUIRE BRIEF
   UPDRAFT ROTATION AND POSE A MARGINAL THREAT FOR SHORT-LIVED
   TORNADOES. HOWEVER...THE SVR WEATHER THREAT IS EXPECTED TO BE TOO
   LOW TO WARRANT A WW.
   
   AT 17Z...COMPOSITE REFLECTIVITY SHOWED A CLUSTER OF STORMS LIFTING
   NWD OVER SERN GA...WITH MORE DISCRETE ACTIVITY TRAILING SWD INTO FAR
   NRN FL. STORMS OVER GA ARE MOVING ACROSS AN E-W ORIENTED LOW-LEVEL
   BAROCLINIC ZONE...WITH WINDS S OF THE BOUNDARY OVER NRN FL
   SELY...BACKING TO E-NELY OVER THE COOL SIDE OF THE BOUNDARY IN ERN
   GA. STRONGLY VEERING VERTICAL WIND PROFILES MAY AID IN BRIEF UPDRAFT
   ROTATION/SHORT-LIVED TORNADO THREAT AS VERY MOIST BOUNDARY LAYER
   CONTINUES TO HEAT UP DURING THE AFTERNOON. HOWEVER...THE SVR WEATHER
   THREAT IS EXPECTED TO BE VERY MARGINAL...PRECLUDING THE NEED FOR A
   WW.
   
   ..GARNER.. 09/20/2011
   
   
   ATTN...WFO...CHS...JAX...FFC...TAE...
   
   LAT...LON   31988309 32058189 31588107 30488151 30578335 31988309