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Extreme weather photographer Chad Cowan documented this other-worldly storm structure in South Dakota on July 23, 2010! Earlier in its life-span, the storm dropped a RECORD-BREAKING hail stone near the town of Vivian! The monster hail measured a whopping 8 INCHES IN DIAMETER and weighed just under TWO POUNDS!!! Check out Chad's website for more information and licensing (prints available) http://www.chasethestorms.com/ and http://www.tornadovideos.net for extreme weather video and news!

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