30 May '14, 7pm

Stunning new storm video puts the 'super' in supercell

Supercells are the rarest and most severe type of thunderstorm . They're often the most mesmerizing, too, looming overhead with an ethereal, UFO-like grace that belies their knack for wreaking havoc. We've featured some impressive supercell videos on MNN before, but the cinematic opus above overshadows them all. Filmed by photographer Stephen Locke near Climax, Kansas, it's a nearly flawless portrait of a supercell's birth. Locke found an ideal vantage point to frame the May 10 mesocyclone, then used time-lapse photography to capture a fluid, vivid and high-definition video of his subject churning into existence. Do it justice by watching in HD and full-screen modes. The key ingredient for a supercell is rotation , spurred by wind shear that slices air into layers and creates a spinning horizontal column. This giant axle of air is then pushed upright by updrafts — which ca...

Full article: http://www.mnn.com/earth-matters/climate-weather/blogs/st...

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