000 WSUS32 KKCI 181155 SIGC MKCC WST 181155 CONVECTIVE SIGMET 21C VALID UNTIL 1355Z IL MO IA KS NE FROM 30S IOW-10NE UIN-BUM-70ENE ICT-50ENE PWE-30S IOW AREA EMBD TS MOV FROM 25040KT. TOPS TO FL440. OUTLOOK VALID 181355-181755 FROM IOW-VUZ-MLU-TUL-OVR-IOW WST ISSUANCES EXPD. REFER TO MOST RECENT ACUS01 KWNS FROM STORM PREDICTION CENTER FOR SYNOPSIS AND METEOROLOGICAL DETAILS.