MESOSCALE DISCUSSION 0238
   NWS STORM PREDICTION CENTER NORMAN OK
   1148 AM CST THU MAR 01 2007
   
   AREAS AFFECTED...SERN MS...CNTRL AND SRN AL...FL PANHANDLE THROUGH
   NRN AND CNTRL GA
   
   CONCERNING...TORNADO WATCH 44...46...
   
   VALID 011748Z - 011945Z
   
   CORRECTED TO CHANGE REFERENCE TO SEVERE THUNDERSTORM WATCHES TO
   TORNADO WATCHES
   
   THREAT FOR LONG TRACK STRONG TORNADOES APPEARS TO BE INCREASING AND
   WILL PERSIST THROUGH THE AFTERNOON FROM SERN MS THROUGH SRN AND
   CNTRL AL...THE FL PANHANDLE AND EVENTUALLY INTO CNTRL AND NRN GA.
   
   NUMEROUS STORMS INCLUDING DISCRETE SUPERCELLS CONTINUE DEVELOPING
   WITHIN ZONE OF LOW LEVEL CONFLUENCE AND ISENTROPIC LIFT IN WEAKLY
   CAPPED ENVIRONMENT OVER THE CNTRL GULF COAST REGION. STRONGEST
   STORMS ARE CURRENTLY FROM SERN MS...SRN AND CNTRL AL INTO THE FL
   PANHANDLE AND ARE MOVING NE. THE STRONG SLY LOW LEVEL JET IS
   ADVECTING MID TO UPPER 60S DEWPOINTS NWD THROUGH THE WARM
   SECTOR...AND THIS WILL CONTRIBUTE TO NWD DESTABILIZATION THIS
   AFTERNOON DESPITE WIDESPREAD CLOUD COVER. AN AXIS OF MLCAPE FROM 500
   TO 1000 J/KG EXISTS ACROSS PARTS MS INTO AL AND THE FL PANHANDLE.
   LARGE LOW LEVEL HODOGRAPHS WITH 0-1 KM STORM RELATIVE HELICITY IN
   EXCESS OF 300 M2/S2 PERSISTS OVER A LARGE AREA...AND THIS WILL
   MAINTAIN A FAVORABLE ENVIRONMENT FOR TORNADIC SUPERCELLS NEXT
   SEVERAL HOURS.
   
   STORMS DEVELOPING OVER NRN GA CURRENTLY APPEAR ELEVATED. THE STRONG
   LOW LEVEL JET WILL RESULT IN NWD DESTABILIZATION WITH TIME AS FAR N
   AS NRN GA LATER THIS AFTERNOON...AND THIS WILL CONTRIBUTE TO AN
   INCREASING TORNADO THREAT AS STORMS BECOME SURFACE BASED.
   
   ..DIAL.. 03/01/2007
   
   
   ATTN...WFO...FFC...TAE...BMX...MOB...JAN...LIX...
   
   31118466 30378708 30878923 33588727 33538409