Why was the Woodward tornado important?

The Woodward Oklahoma tornado of 1947, with a death toll of 181, was one of the deadliest tornadoes in US history, and the deadliest ever to strike Oklahoma. Since it occurred no single US tornado has surpassed it death toll. The great loss of life combined with the fact that no warnings were issued led to increased calls for some sort of waring system. Some work was done to create a warning system in the following years, but efforts did not begin in earnest until another series of extremely deadly tornadoes struck in 1953.