Tornadic storms fed by perfect spirals

Sometimes, large thunderstorms called supercells spawn tornadoes; sometimes they don’t. Predicting whether supercell drafts will spiral into a tornado is tricky, with false-alarm rates running as high as 75 percent. In a new study using helium balloons to study tornadogenesis in supercells, researchers have shown that wind patterns in the lowest 1 kilometer of a storm may play a major role in forming twisters.

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Mary Caperton Morton

Mary Caperton Morton

Morton (https://theblondecoyote.com/) is a freelance science and travel writer based in Big Sky, Mont., and an EARTH roving correspondent.  

Tuesday, January 17, 2017 - 06:00