MESOSCALE DISCUSSION 0239
   NWS STORM PREDICTION CENTER NORMAN OK
   1129 AM CST THU MAR 13 2003
   
   AREAS AFFECTED...MS
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 39...
   
   VALID 131729Z - 131930Z
   
   THE THREAT OF DAMAGING WINDS AND LARGE HAIL CONTINUES ACROSS THE
   ERN HALF OF WW039.
   
   LATEST REGIONAL RADAR IMAGERY SHOWS LINE OF TSTMS...INCLUDING
   EMBEDDED LEWPS...FROM CBM SWWD TO S OF HEZ. THE STRONGEST
   ACTIVITY IS OCCURRING FROM JAN SWD TO MCB WHERE AIRMASS HAS
   BECOME MODERATELY UNSTABLE WITH MLCAPES OF 1000-1500 J/KG. JAN
   VWP/OKOLONA MS PROFILER DATA INDICATE A UNIDIRECTIONAL WIND
   PROFILES WITH STRONGER UPSTREAM WINDS --45-50 KT WLY WINDS IN THE
   5-6 KM AGL LAYER-- OBSERVED EARLIER AT DEQUEEN AR. COMBINATION OF
   MODERATELY UNSTABLE AIRMASS AND INCREASING MID-LEVEL FLOW AHEAD
   OF SHORTWAVE TROUGH CURRENTLY MOVING THROUGH AR...WILL SUPPORT A
   CONTINUED WIND AND HAIL THREAT WITH ONGOING LINE OF TSTMS.  
   
   ..MEAD.. 03/13/2003
   
   
   ATTN...WFO...MEG...JAN...LIX...LCH...
   
   31749184 32579140 33749089 34349061 34318997 34328911
   34128846 33048890 31758961 31078991 31119114 31109197