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Experts have estimated that around 230 tornadoes occur in Canada each year, though only around 60 are formally confirmed. [1] with most occurring in Southern Ontario, the southern Canadian Prairies and southern Quebec. Canada ranks as the second country in the world with the most tornadoes per year, after the United States of America.
The biggest were two F4 tornadoes; one starting in Woodstock and travelling southeast for 57 km (35 mi), the other starting in the south of Stratford, tearing a path southeast for 31 km (19 mi). An F0 satellite tornado accompanied the Woodstock tornado for up to 21 km (13 mi). The storms killed two and injured more than 150, while 480 houses ...
May 31 – North Bay, Ontario, was struck by two weak tornadoes. June 23 – a weak tornado touched down in Ottawa between Kanata and Barrhaven.; July 28 – severe thunderstorms over Northern Ontario produced a tornado over Halfway Lake Provincial Park (70 km (43 mi) north of Sudbury) where 800 people were camping at the time, fallen trees injure 4 campers.
The 1985 United States–Canada tornado outbreak, referred to as the Barrie tornado outbreak in Canada, was a major tornado outbreak that occurred in Ohio, Pennsylvania, New York, and Ontario, on May 31, 1985. In all 44 tornadoes were counted including 14 [2] in Ontario, Canada. It is the largest and most intense tornado outbreak ever to hit ...
The Southern Ontario Tornado Outbreak of 2009 was a series of severe thunderstorms that spawned numerous tornadoes in Southwestern Ontario, Central Ontario and the Greater Toronto Area (GTA) on August 20, 2009, and was the largest single-day tornado outbreak in Ontario history and the largest in Canadian history. During the afternoon and ...
Tornado outbreak sequence of April 25 – May 3, 1954: April 25 – May 3, 1954: Great Plains – Midwest – Mississippi Valley: 100: 4 fatalities, 167 injuries: This was one of the largest tornado outbreak sequences at the time. Several long-tracked tornadoes touched down in Texas, Arkansas, and Iowa and violent tornadoes touched down in Iowa ...
The deadliest tornadoes in Canadian history were the 1912 Regina 'Cyclone' (at least 28), 1987 Edmonton 'Black Friday' Tornado (27), and the 1946 Windsor–Tecumseh Tornado (17). This is a dynamic list and may never be able to satisfy particular standards for completeness.
This page documents all tornadoes confirmed by Environment Canada and the University of Western Ontario's Northern Tornadoes Project (NTP) in Canada throughout 2023. Based on statistical modelling by Sills et al. (2012), an average of 230 tornadoes likely occur across the country each year; however, only 61 of these are actually documented annually based on 1980–2009 averages. [1]