MESOSCALE DISCUSSION 0173
   NWS STORM PREDICTION CENTER NORMAN OK
   1125 AM CST MON FEB 28 2011
   
   AREAS AFFECTED...NRN AL...MIDDLE AND SERN TN...NWRN GA
   
   CONCERNING...TORNADO WATCH 31...
   
   VALID 281725Z - 281900Z
   
   CORRECTED FOR WORDING
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 31 CONTINUES.
   
   THE SEVERE THREAT CONTINUES ACROSS THE WATCH WITH DAMAGING WINDS AND
   TORNADOES POSSIBLE.
   
   SURFACE ANALYSIS SHOWS A COLD FRONT NOW ENTERING WRN TN...EXTENDING
   SWWD ACROSS NERN MS. MEANWHILE...AN E-W ORIENTED
   BOUNDARY...REINFORCED BY CONVECTION...EXTENDED EWD FROM THE SURFACE
   LOW ACROSS MIDDLE AND ERN TN WHERE CONVECTION WAS ONGOING.
   
   AREAS OF HEATING UPSTREAM OVER MS/AL/GA AND STRONG SWLY LOW LEVEL
   FLOW WILL MAINTAIN A FLUX OF WARM AND UNSTABLE AIR NWD AHEAD OF THE
   COLD FRONT.  STRONG STORMS NOW ENTERING NWRN AL AND SRN MIDDLE TN
   ARE LIKELY TO REMAIN STRONG OR SEVERE AS THEY CONTINUE TO TREK E IN
   A STRONGLY SHEARED ENVIRONMENT AND WITH STRONG CONVERGENCE.
   
   TO THE S...MUCH OF THE WARM SECTOR REMAINS CAPPED. HOWEVER...RECENT
   SOUNDINGS AND OBJECTIVE ANALYSIS INDICATE THAT SOME COOLING ALOFT OF
   THE WARM NOSE IS OCCURRING...AND BY LATER THIS AFTERNOON...STORMS
   MAY REDEVELOP SWD INTO NRN AL AND NWRN GA WITH A DEEPENING MOIST
   BOUNDARY LAYER. THUS...ANOTHER TORNADO WATCH MAY BE REQUIRED LATER
   TODAY SE OF WW 31.
   
   ..JEWELL.. 02/28/2011
   
   
   ATTN...WFO...GSP...MRX...JKL...FFC...LMK...OHX...BMX...HUN...
   MEG...JAN...
   
   LAT...LON   35038442 35018491 34968562 34418552 34278566 33628694
               33348785 33339009 34478887 35708797 35958757 35998696
               36318600 36638546 36588346 37088194 36348184 35038442