Mammatus over the Prairie. North of Duke, OK. March 31, 2015. Chris Sanner 2015-08-03T12:43:26+00:00 Project Description Related Project Details Categories: 2015Chris SannerTurbulent Skies Tags: cloudsmammatusprairieskyweather Share This Story, Choose Your Platform! FacebookTwitterLinkedinRedditTumblrGoogle+PinterestEmail Related Projects Permalink Gallery View Cart Severe thunderstorm and lightning in Hodgeman County, Kansas. April 2, 2015. April 4th, 2015 | 1 Comment Permalink Gallery View Cart Altamont, Kansas Tornado at it’s most mature stage. April 2, 2015. April 4th, 2015 | 1 Comment Permalink Gallery View Cart Our first severe warned cell of the day, an anticyclonic supercell in SW OK. March 31, 2015. April 4th, 2015 | 0 Comments Leave A Comment Cancel reply Comment Sign me up for the newsletter! Notify me of new posts by email.