KCHA was noted for its role during the
May 15, 1968 tornado that tore through Charles City, destroying over half the town and killing 13 residents and injuring hundreds. One of the largest twisters ever recorded in the state, the storm destroyed much of the downtown – 256 businesses and 1,250 homes. KCHA was warning people of the incoming storm when the tornado struck. After power was knocked out, station personnel installed an emergency generator at the transmitter site on Stony Point Road and was back on the air later that evening. ==Transmission Location==