066 ACUS11 KWNS 051538 SWOMCD SPC MCD 051538 ALZ000-MSZ000-ARZ000-LAZ000-TXZ000-OKZ000-051845- MESOSCALE DISCUSSION 0762 NWS STORM PREDICTION CENTER NORMAN OK 1038 AM CDT MON MAY 05 2003 AREAS AFFECTED...LA MS AL AR CONCERNING...OUTLOOK UPGRADE VALID 051538Z - 051845Z GIVEN THE VERY UNSTABLE AIRMASS AND STRONG DEEP LAYER SHEAR IN THE WARM SECTOR ACROSS THE LOWER MS VALLEY...THE 1630Z CONVECTIVE OUTLOOK WILL UPGRADE A PORTION OF THIS AREA TO A HIGH RISK. ..HALES.. 05/05/2003 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...BMX...HUN...MOB...MEG...JAN...LZK...SHV... 33419511 33789443 34249340 34669160 34939004 34898802 34938620 34138637 32778685 32388776 31999090 31759215 31789358 32169505