MESOSCALE DISCUSSION 2392
   NWS STORM PREDICTION CENTER NORMAN OK
   0251 PM CST THU DEC 22 2011
   
   AREAS AFFECTED...ERN AL...WRN FL PANHANDLE
   
   CONCERNING...TORNADO WATCH 899...
   
   VALID 222051Z - 222145Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 899 CONTINUES.
   
   LATEST SFC DIAGNOSTIC DATA SUGGESTS A NARROW CORRIDOR OF PRESSURE
   FALLS HAVE REFOCUSED DOWNSTREAM FROM NERN AL...ACROSS NWRN GA INTO
   ERN TN.  THIS SHOULD SERVE AS THE FOCUS FOR TRANSIENT LOW THAT WILL
   LIFT NEWD ALONG THE FRONTAL BOUNDARY ALONG THE WRN SLOPES OF THE SRN
   APPALACHIANS.  AS THE STRONGER DYNAMIC SUPPORT LIFTS NEWD IT APPEARS
   THE GREATEST THREAT FOR TORNADIC SUPERCELLS WILL SHIFT ACROSS NERN
   AL INTO NRN GA OVER THE NEXT FEW HOURS...ESPECIALLY GIVEN THAT LOW
   LEVEL DEW POINTS/RH ARE DECREASING ACROSS THE SRN HALF OF GA. 
   LATEST RADAR DATA CONTINUES TO SHOW SEVERAL LONGER LIVED POTENTIALLY
   TORNADIC SUPERCELLS IMMEDIATELY AHEAD OF THE SFC LOW AND THIS WILL
   REMAIN THE PRIMARY AREA OF CONCERN INTO THE LATE AFTERNOON HOURS.
   
   ..DARROW.. 12/22/2011
   
   
   ATTN...WFO...FFC...BMX...HUN...MOB...JAN...LIX...
   
   LAT...LON   30399024 34108773 34108442 30398707 30399024