Despite some high profile tornadoes in 2013, the new article, "The 2013 Tornado Season: Local Devastation Defies Below-Normal Numbers", in Weatherwise magazine is reporting below average numbers of tornados. There were 903 tornadoes in the United States, which is below the 10-year annual average of 1,350. Furthermore, it has been 25 years since a year with fewer tornadoes, which was in 1989 with 856.
Fuente : http://www.alphagalileo.org/ViewItem.aspx?ItemId=1...
Fuente : http://www.alphagalileo.org/ViewItem.aspx?ItemId=1...