FAUS24 KZAU 301836 ZAU4 CWA 301836 ZAU CWA 401 VALID UNTIL 301900 FROM 10SW BAE-30NW ORD-40WNW ORD-30WSW BAE-10SW BAE AREA TS. MOV FROM 22045KT TOPS TO FL390. THIS IS ADDN INFO TO CONVECTIVE SIGMET 01C. IL WI =