"Until 1950, U.S. Weathermen Were Forbidden From Talking About Tornadoes"

"During that time, Roger Edwards of the National Weather Service’s Storm PredictionCenter writes, “tornadoes were, for most, dark and mysterious menaces of unfathomable power, fast-striking monsters from the sky capable of sudden and unpredictable acts of death and devastation.”

Less than confident in their own predictive powers and fearful of the responses of a panicky public, “the use of the word 'tornado' in forecasts was at times strongly discouraged and at other times forbidden” by the Weather Bureau, Edwards writes, replaced by euphemisms like “severe local storms.”"
http://www.slate.com/blogs/atlas_obscura/2016/03/15/until_1950_u_s_weathermen_were_forbidden_from_talking_about_tornados.html?utm_source=Sailthru&utm_medium=email&utm_campaign=March%2017%2C%202016&utm_term=Vox%20Newsletter%20All

When we can't explain or predict something, we don't talk about it...