SVR STRM WRNG - DE KALB CNTY IN IN UNTL 845P : AT 746P NWS 88D INDCTD A SVR STRM CAPBL OF PRDCNG NICKEL SIZE HAIL AND DMGG WINDS IN EXCESS OF 60. THIS SVR STRM WAS LOCATED 10 MI WEST OF WATERLOO AND MVNG E AT 25.