Amazing Mammatus Clouds in Hartington, NE August 21, 2007

Kory Hartman taped some fantastic mammatus clouds near sunset, east of Hartington, Nebraska after a frustrating chase. This made the trip all worth it.

All past chase video, including tornadoes, lightning, hail, straight line winds, blizzards, and hurricanes can be viewed at https://www.severestudios.com