MESOSCALE DISCUSSION 0004
   NWS STORM PREDICTION CENTER NORMAN OK
   1232 PM CST SAT JAN 03 2009
   
   AREAS AFFECTED...EASTERN/SOUTHERN LA AND SOUTHERN MS/SOUTHWEST AL
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 1...
   
   VALID 031832Z - 032000Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 1 CONTINUES.
   
   SEVERE THUNDERSTORM WATCH 01 CONTINUES UNTIL 23Z ACROSS SOUTHEAST LA
   AND SOUTHERN MS. POTENTIAL FOR OCCASIONAL HAIL/WIND GUSTS TO SEVERE
   LEVELS WILL CONTINUE THROUGH THE AFTERNOON. NO ADDITIONAL WATCHES
   ARE CURRENTLY ANTICIPATED ON THE PERIPHERY OF WW 01.
   
   WATER VAPOR IMAGERY FEATURES A QUICK MOVING/LOW AMPLITUDE SHORTWAVE
   TROUGH ADVANCING NORTHEASTWARD ACROSS THE ARKLATEX EARLY THIS
   AFTERNOON. AHEAD OF THIS FEATURE...AN EXTENSIVE LOOSELY-ORGANIZED
   CONGLOMERATION OF TSTMS WILL CONTINUE TO PROGRESS EASTWARD ACROSS
   SOUTHEAST LA/SOUTHERN MS THIS AFTERNOON...WITH CONSIDERABLE
   CLOUDINESS AND LIMITED HEATING LIKELY TO CONTINUE IN THE AMBIENT
   PRE-TROUGH WARM/MOIST SECTOR. GIVEN LIMITED OPPORTUNITY FOR
   APPRECIABLE DESTABILIZATION /18Z JACKSON MS RAOB REFLECTED AROUND
   1000 J PER KG MLCAPE/ AND ONLY MODERATE VERTICAL SHEAR...IT WOULD
   SEEM AS IF THE MAIN SEVERE RISK WILL CONTINUE TO MAINLY BE IN THE
   FORM OF MULTICELLS/SHORT DURATION SUPERCELLS CAPABLE OF OCCASIONAL
   HAIL OR GUSTY WINDS THROUGH THE AFTERNOON.
   
   ..GUYER.. 01/03/2009
   
   
   ATTN...WFO...BMX...MOB...JAN...LIX...LCH...SHV...
   
   LAT...LON   31439220 32429137 32548944 32398771 31678724 30368756
               30408780 30018891 29118925 28969107 29479160 30519156
               31439220