MESOSCALE DISCUSSION 0684
   NWS STORM PREDICTION CENTER NORMAN OK
   0221 PM CDT FRI MAY 02 2003
   
   AREAS AFFECTED...E TX/S AR/NRN-CNTRL LA/WRN-CNTRL MS
   
   CONCERNING...SEVERE THUNDERSTORM POTENTIAL 
   
   VALID 021921Z - 022115Z
   
   SCATTERED TO NUMEROUS THUNDERSTORMS ARE EXPECTED TO DEVELOP ACROSS
   ERN TX/CNTRL LA AND WRN MS OVER THE NEXT FEW HOURS. CONVECTION WILL
   HAVE THE POTENTIAL FOR LARGE HAIL AND/OR DAMAGING WINDS. WW WILL
   LIKELY BE ISSUED FOR THIS REGION WITHIN THE NEXT HOUR.
   
   COLD FRONT WAS POSITIONED FROM WACO TX EXTENDING NE TO NEAR MEMPHIS
   TN. WARM SECTOR AHEAD OF THE FRONT HAD STRONGLY DESTABILIZED WITH
   MLCAPE VALUES AROUND 3000 J/KG. OUTFLOW BOUNDARY FROM LAST NIGHTS
   STORMS HAS WASHED OUT ACROSS NRN LA AND NWRN MS. CONVECTION WILL
   LIKELY DEVELOP ALONG THE BOUNDARY AS WELL AS IN THE WARM SECTOR.
   ALTHOUGH DEEP LAYER SHEAR IS WEAK...500 MB TEMPS OF -12 TO -14 C AND
   STRONG INSTABILITY SUGGEST UPDRAFTS WILL HAVE POTENTIAL FOR VERY
   LARGE HAIL AND/OR DAMAGING WIND GUSTS. WIND DAMAGE WILL BE
   ESPECIALLY LIKELY IF SHORT CONVECTIVE LINES CAN ORGANIZE PARALLEL TO
   THE UPPER FLOW. 
   
   ..BROYLES.. 05/02/2003
   
   
   ATTN...WFO...MOB...MEG...JAN...LIX...LZK...LCH...SHV...HGX...FWD...
   
   29989465 30649524 32129587 32939430 33869134 34148981
   33458927 32618873 31818859 31119077 30229356