MESOSCALE DISCUSSION 0683
   NWS STORM PREDICTION CENTER NORMAN OK
   0143 PM CDT FRI MAY 02 2003
   
   AREAS AFFECTED...SRN TN...NRN MS...AND NRN AL
   
   CONCERNING...SEVERE THUNDERSTORM POTENTIAL 
   
   VALID 021843Z - 022015Z
   
   SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP AND INTENSIFY ACROSS
   NRN MS...NRN AL...AND SRN TN DURING THE NEXT FEW HOURS. THREAT OF
   DAMAGING WIND AND LARGE HAIL ACCOMPANYING THESE CELLS WILL LIKELY
   NECESSITATE A SEVERE THUNDERSTORM WATCH SOON. 
   
   VISIBLE SATELLITE IMAGERY AT 1830Z INDICATES VIGOROUS CONVECTIVE
   TOWERS 45 SW TUP AND 45 SE MKL. AN OVERALL INCREASING IN THE
   LOW-LEVEL CUMULUS FIELD WAS ALSO NOTED ACROSS THE ENTIRE REGION.
   WITH TEMPERATURES IN THE LOW 80S AND DEWPOINTS IN THE MID TO UPPER
   60S...AIR MASS HAS BECOME VERY UNSTABLE WITH 100MB MLCAPE VALUES OF
   2000-3000 J/KG. WLY DEEP LAYER SHEAR /0-6KM/ VALUES ON THE ORDER OF
   30KT SHOULD BE SUPPORTIVE OF MULTICELLULAR STORMS WITH LARGE HAIL
   AND DAMAGING DOWNDRAFT WINDS. SEVERAL CLUSTERS OF STORMS ARE LIKELY
   LATER THIS AFTERNOON...WITH POTENTIAL FOR ORGANIZED LINES/BOW
   SEGMENTS WITH POTENTIAL FOR WIND DAMAGE. 
   
   ..BANACOS.. 05/02/2003
   
   
   ATTN...WFO...OHX...BMX...HUN...MEG...JAN...
   
   35568830 35308651 34618593 34208590 33308649 33148740
   33168819 33398941 33689001 34009032 34589048 35079036
   35568954