Spectacular Mammatus Clouds over Hastings, Nebraska

here is a link to some realy nice pictures of mammatus clouds.

http://www.hprcc.unl.edu/nebraska/june2004hastings-mammatus.html
also his (Jorn C Olsen) website if your interested (NB, the site is down for the moment due to exceeded bandwitdh)


be sure to check the link, more pictures there...