The wildfires east of Boise, Idaho, with the Elk Complex and Beaver Fire being the primary suspects, put up a massive pyrocumulus cloud and smoke plume on Tuesday that by mid-day on Wednesday had moved into Wyoming and eastern Montana. It should be over South Dakota later today.
Darren R. Clabo, the South Dakota State Fire Meteorologist, alerted us to this and sent us the links to satellite imagery, below, via Mike Fromm.. The second one may take a long time to load, but after it does, the video moves along at a good clip.
Video of clouds and smoke, western United States.
In recent years, scientists and fire behavior analysts have tracked smoke plumes like this while they made multiple trips around the Earth.