- The weight of ice during the Ice Storm of 1998 felled 1000 hydro pylons and 35,000 hydro poles in Ontario and Québec.
- In 1979, the derailment of a train carrying deadly chemicals in Mississauga led to the second largest evacuation ever in North American history (after Hurricane Katrina in Louisiana).
- Most of York (present-day Toronto) was looted and burned by the American army in 1812.
- The Honeymoon Bridge, which gave tourists a spectacular view of Niagara Falls, collapsed under pressure from ice in 1938.
- All hands went down with 12 ships during a single storm on the Great Lakes in 1913; 50 more ships were badly damaged.
- Canada’s first Parliament building burned down in 1916.
- The deadliest single disaster in Great Lakes shipping occurred when the Noronic burned in Toronto Harbour in 1949, killing 118 people on board.
- In 1954, Hurricane Hazel caused so much flooding that an entire street of houses was washed away in Toronto.
