Good look at cool Mammatus Clouds I've seen some wierd cloud formations locally and thought they were pretty cool. It this was in a movie or tv show, I'd bet we'd heard complaints that the CGI was pretty bad and the sky was oviously fake. Here are some pics of some Mammatus clouds Jorn Olsen took at Heartwell Park in Hastings, Nebraska. [via boingboing]  ¶ 7:16 AM