Massive sheets of moving ice have pushed ashore in Canada and northern Minnesota, damaging and even destroying some lakefront homes.
In Minnesota, viral video of the weather phenomenon shows an enormous "ice tsunami" slowly creeping forward from the lake, taking down trees and bushes in its path and pushing into some resort homes along Lake Mille Lacs, ABC News reported.
National Weather Service meteorologist Shawn Devinny told The Associated Press 30 to 40 mph winds pushed water from the lake into the ice and drove it ashore Saturday morning.
Winds were lighter Sunday, giving the communities bordering the lake a bit of a reprieve.
According to the Minnesota Department of Natural Resources, about 10 miles of shoreline are covered with the ice sheets.
Some reach up to 30 feet high.
On Friday, 12 homes and cottages along Dauphin Lake in Manitoba were destroyed by a similar phenomenon, the Winnipeg Free Press reported.