000 WSUS32 KKCI 181055 SIGC MKCC WST 181055 CONVECTIVE SIGMET 20C VALID UNTIL 1255Z IL MO IA KS NE FROM 20SE IOW-40ESE UIN-40W BUM-20NW ICT-40E PWE-20SE IOW AREA EMBD TS MOV FROM 25040KT. TOPS TO FL450. OUTLOOK VALID 181255-181655 FROM IOW-UIN-SGF-ICT-OBH-IOW WST ISSUANCES EXPD. REFER TO MOST RECENT ACUS01 KWNS FROM STORM PREDICTION CENTER FOR SYNOPSIS AND METEOROLOGICAL DETAILS.