773 ACUS11 KWNS 082119 SWOMCD SPC MCD 082118 IAZ000-MOZ000-NEZ000-SDZ000-082215- MESOSCALE DISCUSSION 0862 NWS STORM PREDICTION CENTER NORMAN OK 0418 PM CDT THU MAY 08 2003 AREAS AFFECTED...SRN NEB AND SWRN IA CONCERNING...SEVERE THUNDERSTORM POTENTIAL VALID 082118Z - 082215Z ...SEVERE THUNDERSTORM WATCH MAY BE NEEDED SHORTLY FOR PORTIONS OF CENTRAL/NRN NEB AND SWRN IA... SUPERCELLS OVER NRN KS AND EXTREME SRN NEB WILL SHIFT RAPIDLY NEWD AS STRONG UPPER JET AND SURFACE/UPPER LOW EJECT NEWD. ALTHOUGH THE FRONT IS SHIFTING NWD...APPEARS BOUNDARY LAYER WILL REMAIN COOL AND STABLE WITH THE MAIN THREAT VERY LARGE HAIL. ..IMY.. 05/08/2003 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...DMX...EAX...FSD...OAX...GID...LBF... 40759777 40989993 41180130 42680103 42799807 42369584 42019465 40979401 40549575 40829714