I often read in more general reference books as well as a handful of weather books that a tornado at Wichita Falls, TX, on April 2, 1958 had a wind gust recorded at 280 mph. (For instance, this was in a 1964 edition of The Guinness Book of Records.) That said, it's never mentioned just how that wind gust was recorded, and other weather books just don't mention it at all. Significant Tornadoes lists the tornado as an F3, and doesn't mention the wind gust either. Does anyone know anything about this?