Why Are There So Many Tornadoes This Year? [Giz Explains]

The US is the most tornado-friendly landmass on Earth. We've got just the right mix of moisture, instability, lift, and wind shear to provoke more than 1,000 of the dangerous storms annually. More »

Source: http://feeds.gawker.com/~r/gizmodo/full/~3/Vzq0EOmYM4s/why-are-there-so-many-tornadoes-this-year

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