MESOSCALE DISCUSSION 0428
   NWS STORM PREDICTION CENTER NORMAN OK
   0849 PM CDT SAT MAR 15 2008
   
   AREAS AFFECTED...CENTRAL/ERN GA...SRN/ERN SC...SRN NC
   
   CONCERNING...TORNADO WATCH 120...
   
   VALID 160149Z - 160245Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 120 CONTINUES.
   
   PARAMETERS REMAIN FAVORABLE FOR TORNADOES ACROSS MAINLY SRN PART OF
   WW 120 FROM CENTRAL GA TO SRN SC...WHERE THE AIR MASS REMAINS
   MODERATELY UNSTABLE WITH VERY STRONG EFFECTIVE BULK SHEAR AND SRH
   VALUES.  THIS THREAT IS EXPECTED TO PERSIST UNTIL SURFACE BASED
   STORMS MOVE OFFSHORE.
   
   MEANWHILE...REGIONAL RADARS INDICATED AN INCREASE IN CONVECTION FROM
   SOUTH CENTRAL NC INTO ERN SC TO THE NORTH OF THE LEADING BAND OF
   STRONGER ACTIVITY.  THIS ACTIVITY IS TIED TO SRN EXTENT OF SHORT
   WAVE TROUGH....NOW CENTERED OVER WRN VA/NC...AND ALONG ATTENDANT
   COLD FRONT TRAILING SWD THROUGH SRN NC TO CENTRAL SC.  ALTHOUGH
   INSTABILITY IS MARGINAL ACROSS THE ERN EXTENT OF WW 120...EFFECTIVE
   BULK SHEAR OF 60 KT SUGGESTS STORMS COULD BECOME STRONGER PRODUCING
   A HAIL OR DAMAGING WIND THREAT IN THE WAKE OF EARLIER ACTIVITY.
   
   ..PETERS.. 03/16/2008