On this date in 1948, a strong tornado struck Tinker Air Force Base in Oklahoma City. Its path was just 100 yards from the tornado that occurred five days earlier. The second twister hit 84 planes, destroying 35 of them. Damage estimates reached $6 million.
It was the first tornado ever successfully forecast, ushering in the modern era of forecasting severe local storms - though tornado warnings for the public were still years away.