SVR STRM WRNG - SE CASS CNTY IN NORTH C IN S MIAMI CNTY IN NORTH C IN UNTL 615P : AT 540P NWS 88D INDCTD A SVR STRM CAPBL OF PRDCNG PENNY SIZE HAIL AND DMGG WINDS IN EXCESS OF 60. THIS SVR STRM WAS LOCATED 3 MI SE OF WALTON OR ABT 4 MI SW OF GRISSOM AFB AND MVNG NE AT 50.