April Tornado Risk

While tornadoes can be spawned any time of year the volatile mix of ingredients exists, climatologically speaking, April is a dangerous month for tornadoes in parts of the U.S.

Over the past 10 years, April comes in only behind May for average U.S. tornado counts.  That average is admittedly skewed by April 2011, in which 758 U.S. tornadoes set a record for any month.

In particular, a swath from the central and southern Plains east into the Tennessee Valley is most susceptible to swarms of tornadoes in the first full month of spring, denoted by the white-shaded area in the map at right above.

http://www.weather.com/news/tornado-central/tornado-threat-april-20130403

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