

24. Donut Cloud Circular features of one sort or another are often seen in clouds, and there are many and varied explanations for them. The “donut cloud” shown in this photograph is a collapsed cumulus column surrounded by cumulonimbus. Prior to collapse it would have looked as majestic and imposing as those in slides #6 and #7. STS 51-I, August-September 1985. Picture. #27-39-031. Right click here to download a high-resolution version of the image (8.74 MB)



