957 WSUS32 KKCI 130455 SIGC MKCC WST 130455 CONVECTIVE SIGMET 20C VALID UNTIL 0655Z MN NE SD ND WY FROM 40N MOT-60SSE YWG-60NW ANW-40NE BFF-60ESE DDY-40N MOT AREA SEV TS MOV FROM 29020KT. TOPS ABV FL450. HAIL TO 1 IN...WIND GUSTS TO 60KT POSS. CONVECTIVE SIGMET 21C VALID UNTIL 0655Z ND MT FROM 60NNE ISN-20SE ISN-50W ISN-60NW ISN-60NNE ISN AREA SEV TS MOV FROM 29015KT. TOPS ABV FL450. HAIL TO 1 IN...WIND GUSTS TO 50KT POSS. CONVECTIVE SIGMET 22C VALID UNTIL 0655Z KS NE FROM 40SSW OBH-50SSE OBH-40S SLN-40SW SLN-40NE HLC-40SSW OBH AREA TS MOV FROM 30010KT. TOPS TO FL390. OUTLOOK VALID 130655-131055 FROM 70NW ISN-60WNW INL-50E INL-30S FSD-30NNW IRK-TTH-BWG-30NNW MEM-40N MMB-30W SNY-BOY-BIL-70NW ISN WST ISSUANCES POSS. REFER TO MOST RECENT ACUS01 KWNS FROM STORM PREDICTION CENTER FOR SYNOPSIS AND METEOROLOGICAL DETAILS.