 The second began service on June 1, 1947 in Wichita, Kansas, in the heart of the Tornado Alley.In August of the same year, the WSR-1 installed at Norfolk, Nebraska proved its usefulness and cost savings by alerting the Elkhorn Valley power system of the approach of thunderstorms.Three particularly severe weather events occurred during the spring of 1953 and led to the establishment of the "Texas Tornado Warning Network".