PERRYVILLE, MO (KFVS) - Several viewers took pictures of a weather phenomenon Friday morning.
We got pictures from people in Perryville of a roll cloud that were taken moments after sunrise.
According to KFVS Meteorologist Bryan McCormick, this roll cloud formed when a thunderstorm collapsed and sent rain-cooled air down toward the ground.
The cold air spread out in all directions and became a "gust front," lifting and condensing warmer air it encounters. This horizontal motion is how roll clouds get their name, resembling a giant rolling pin in the sky.
Bryan called it "a truly fascinating phenomenon."