Complex sentence: In 1954, Storz purchased WHB-AM, a high-powered station in Kansas City, Missouri which could be heard throughout the midwest and great plains, converted it to an all-hits format, and dubbed the result "Top 40".
Split into simpler sentences: In 1954, Storz purchased WHB-AM, a high-powered station in Kansas City, Missouri, which could be heard throughout the Midwest and the Great Plains. He converted it to an all-hits format, and dubbed the result "Top 40".