Rare Lake Michigan Ice Volcanoes

"Ice volcanoes occur in locations in which waves hit accumulated ice on the shoreline with some force," said Cort Spholten, a meteorologist with the National Weather Service of Grand Rapids.

"We were cold enough to form ice on the shore of Lake Michigan and water had broken the surface of that ice," Spholten said. "The waves ... were strong enough so the water channels through, it squeezes water upwards and tosses the floating ice up. As it happens, over the course of hours or days, it forms a cone and it resembles a volcano."

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