Weather Ball Is DedicatedA weather ball located on top of Hotel Marvin Hughitt was formally dedicated at .ceremonies Wednesday evening.Mayor Ross B. Matson threw the switch setting the weather ball into operation. The device is electronically controlled and gives a weather report from the Huron airport weather station. It is one of four operated in South Dakota by station KELO-TV, Sioux Falls, and it5 affiliated stations. Others are at Sioux Falls, Aberdeen and Watertown.Representing the radio-television station at the dedication cere* monial were Rex King, Jim'MoIo-han and Jack Townsend, all of Sioux Falls, and Mrs. and Mrs. Stoncking and Ken Schneider of Garden City. About .50 perwrw attended -the dedication,f