Cumulonimbus, Landscape Thundercloud Over the Catalina Mountains October 12, 2017 WPOTD Editor Leave a comment I took this picture from my back porch in Tucson, AZ. A classic anvil shape T-storm over the Catalina Mountains in Tucson (March 11. 2005). Photo Credit: Jonathan DuHamel Click for larger image. Share this:EmailFacebookRedditTwitterPinterestLike this:Like Loading... Related