Ice Rings in Lake MichiganJanuary 24th, 2013 at 2:07 am by Bill Steffen under Bill's Blog, Weather
Several people have sent me this video of ice rings or “ice doughnuts” in Lake Michigan. There’s more pictures here, here, here, here, here, here, and here. The phenomena may be related to ice balls that formed earlier. I am not the expert here, I can only offer a guess as to their cause. I’ll say that the ice around the outside is caused by water lapping over the edge of an original ball or plate of ice. These have the ability to spin around, so at times they are “facing the wind” and at times a certain edge is on the east side of the west wind. Feel free to leave a comment if you’ve seen them before or have a better explanation. Pretty cool to see, though.