The US has experienced a record low number of tornadoes this past year.
Chron Blog reported:
In a NOAA blog post tornado expert Harold Brooks notes that during the 12-month period from May 2012-April 2013 there were just 197 tornadoes rated EF1 or stronger. This is, Brooks says, apparently a
record low for U.S. tornadoes in a 12-month period.
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Here’s a time-series showing the change evolution of the number of EF1 and stronger tornadoes since 1954 is below.