MESOSCALE DISCUSSION 0227
   NWS STORM PREDICTION CENTER NORMAN OK
   0757 PM CST MON FEB 25 2013
   
   AREAS AFFECTED...PORTIONS OF CNTRL AND ERN MS / SWRN AL / FAR WRN FL
   PNHDL
   
   CONCERNING...TORNADO WATCH 44...
   
   VALID 260157Z - 260300Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 44 CONTINUES.
   
   SUMMARY...THE GREATEST THREAT FOR A TORNADO OR TWO AND LOCALLY
   DAMAGING WINDS MAY INCREASE THROUGH 04Z OVER COASTAL AL INTO THE WRN
   FL PNHDL.
   
   DISCUSSION...THE LOW-LEVEL MASS RESPONSE TO THE EWD PROGRESSION OF
   THE DEEP-LAYER CYCLONE OVER THE SRN PLAINS IS BECOMING INCREASINGLY
   EVIDENT ACROSS THE WATCH AREA THIS EVENING IN THE FORM OF A
   STRENGTHENING LLJ /PER AREA VADS/ AND MORE NOTABLE SURFACE PRESSURE
   FALLS.  AS A RESULT...NEAR-SHORE BUOYS ARE OBSERVING WINDS VEERING
   AND STRENGTHENING WITH DEWPOINTS CLIMBING INTO THE MID 60S.  EXPECT
   THIS TREND TO CONTINUE WITH AN INCREASING RISK FOR SURFACE-BASED
   STORMS DEVELOPING ALONG THE RETREATING OUTFLOW BOUNDARY / WARM FRONT
   OVER THE SHELF WATERS AND GRADUALLY APPROACHING THE COAST.  
   
   IN THE MEANTIME...A LONG-LIVED /AND LIKELY SLIGHTLY ELEVATED/ BOWING
   LINE SEGMENT OVER JACKSON AND GEORGE COUNTIES IN FAR SERN MS AS OF
   0145Z...WILL CONTINUE EWD TO NEAR OR JUST N OF MOB...POSING A RISK
   FOR LOCALLY DAMAGING WIND GUSTS.
   
   FARTHER TO THE NW...A LOW-TOPPED CONVECTIVE BAND HAS RECENTLY
   DEVELOPED OVER W-CNTRL MS WITHIN A ZONE OF INCREASING HEIGHT FALLS
   SPREADING EWD INTO THE LOWER MS VALLEY.  THIS CONVECTION WILL AFFECT
   NRN PORTIONS OF THE WW AREA...GENERALLY N OF A JAN TO MEI
   LINE...WITH AN ATTENDANT RISK FOR LOCALLY DAMAGING WINDS AND PERHAPS
   A BRIEF TORNADO.
   
   ..MEAD.. 02/26/2013
   
   
   ATTN...WFO...MOB...JAN...LIX...
   
   LAT...LON   30758963 31878949 33008968 33169026 33389054 33669033
               33618891 33548840 32288855 31988812 31588705 31018678
               30188680 30028821 29878915 30758963