List of Canadian Tornadoes and Tornado Outbreaks - 1970s

1970s

1970

• August 20, An early morning F3 tornado touches down near Sudbury, Ontario, causing extensive damage in the town, as well as the communities of Lively, Field and Copper Cliff. Lively was the hardest hit, with over 300 homes damaged. The communities were given little warning of bad weather approaching, as the Sudbury airport did not have radar that detected tornadic activity. 6 people were killed and over 200 were injured. The damage was estimated at 17 million dollars, and it's listed as the eighth deadliest tornado in Canadian history.

1972

• July 22, A tornado near Algonquin Park, Ontario left a 25 km path destroying a portage trail and wide swaths of Red Pine forest and other trees south of Lake Lavieille.

1973

• July 5, A tornado touches down near Kelvington, Saskatchewan.
• August 27, Algonquin Park is hit with another tornado near Manitou Lake, flattening an 11 km long path of forest.

1974

• April 3, Windsor, Ontario is hit with an F3 tornado, part of the 1974 Super Outbreak. 9 people were killed, with over 20 injured and a estimated $500,000 in damage. It is listed as the sixth deadliest tornado in Canadian history.

1975

• July 24, A strong tornado hits Saint-Bonaventure, Quebec destroying 100 homes and businesses, including the water tower. A woman and her 2 children were killed, and over 40 people were hospitalized.

1977

• July 18, An F4 tornado touched down near St. Malo, Manitoba, destroying houses and barns. Asphalt was peeled off Highway 59 as a result of the strong winds. Three people were killed.

1978

• June 27, An F2 tore through the city of Masson-Angers, Quebec, (today part of Gatineau), damaging 100 homes and injuring 35 people.
• July 30, An F2 tornado touches down near Yellowknife, Northwest Territories, toppling a tower and then destroying a transmission tower near Rae-Edzo. Some witnesses say that they saw a huge mile wide wedge coming into town from the west. The tornado caused severe damage to weakly built houses. It was the third recorded tornado in the region since 1960.

1979

• July 10, A tornado stuck the town of Glasnevin, Saskatchewan, killing one person.
• August 7, 3 tornadoes strike near the Woodstock area of Ontario, causing more that 100 million dollars in damage. The biggest were two F4 tornadoes; one starting in Woodstock and traveling southeast for 57 kilometers, the other starting in the south of Stratford, Ontario, tearing a path southeast for 31 kilometers. Interestingly, an F0 satellite tornado accompanied the Woodstock tornado for up to 21 kilometers. The storms killed 2 and injured more that 150. 480 houses were left uninhabitable. For more information, please see the 1979 Woodstock, Ontario tornado page.
• August 8, A tornado touched down in Regina, Saskatchewan, causing damage in the northwest end of the city. Two tornadoes were spotted that day, with one reaching F2 status, but is unconfirmed.