Tornado wind speeds are ranked using the Enhanced Fujita (EF) Scale.  The speeds are as follows:

  • EF0 65–85 mph      (53.5% of all tornados)
  • EF1 86–110 mph    (31.6% of all tornados)
  • EF2 111–135 mph  (10.7% of all tornados)
  • EF3 136–165 mph  (3.4% of all tornados)
  • EF4 166–200 mph  (0.7% of all tornados)
  • EF5 >200 mph       (Less than 0.1% of all tornados)

The most recently recorded EF5 tornado occurred in Parkersburg, Iowa on May 25, 2008 and destroyed half of the town.

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It’s pretty commonly known that a football (American) field is 100 yards long (Ok, plus two ten-yard end zones). But, how wide is it?

Well, it turns out that a football field is 160 feet wide. That works out to 53 1/3 yards. Don’t ask me why it’s such an odd number of yards. That’s just the way it is.

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