These photos aren't really for any informational purposes, I just thought they were interesting. They were taken in Guthrie County, Iowa, around 5:00 PM on June 27, 1997, by Lesli Dorr. This storm didn't cause any severe weather in her area, but is believed to have done so later as it continued to develop near Des Moines. Lesli says that the best element is missing from these pictures - at the time she took them, she just happened to be listening to the soundtrack from the movie "Twister."
Below are in thumbnails for the photos. The main picture was divided into three photos, which I have combined into one. All three are listed below as well as the combined picture and two others taken as this cell approached. In these photos, I believe you are looking west.
Storm 1a, 2a, 3a combined
Storm 1a
Storm 1b
Storm 1c
Storm 2a
Storm 2b