1940s
1944
- July 1, Two tornadoes strike Lebret, Saskatchewan killing four people.
- August 9, Three tornadoes hit Kamsack, Saskatchewan including one F4, wrecking seventy-five percent of homes and one hundred businesses. It killed three people.
1946
- June 17, An F4 tornado strikes the towns of Windsor, Ontario and Tecumseh, Ontario. There were 17 casualties, and it is the 3rd deadliest tornado in Canadian history.
- June 24, An F3 tornado hits Fort Frances, Ontario. The storm started in International Falls, Minnesota and dissipated near Rainy River, Ontario.
1949
- July 19, The small village of Chénéville, Quebec was devastated by a tornado which lasted about 3 minutes.
Read more about this topic: List Of Canadian Tornadoes And Tornado Outbreaks