The weekend cold snap in parts of Central and Eastern Canada was so extreme, nearly 60 per cent of Lake Erie froze over two days.
Environment Canada issued cold or winter storm warnings on Saturday for provinces from Manitoba to Newfoundland and Labrador.
Temperatures in Windsor, Ont., for instance, dipped to –17 C on Sunday.
On Friday, satellite imagery showed three per cent of the shallowest of the Great Lakes to be covered in ice. By Sunday, it was 64 per cent covered, according to the National Oceanic and Atmospheric Administration (NOAA).
The image above shows Lake Erie on Friday, while the image below shows the lake Sunday.
Mel Diotte of Windsor, Ont., caught the ice forming on Lake Erie while he was near Point Pelee National Park in Leamington, Ont. You can watch his video in the player.