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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]
A tornado watch has been issued by the National Weather Service for most upstate counties in New York, including Monroe, Orleans, Genesee, Wyoming, Livingston, Ontario and Wayne counties. The ...
Quebec is another recognized tornado-prone zone averaging between 4 and 8 tornadoes each yar. Atlantic Canada and Interior British Columbia are also recognized tornado zones averaging between 0 and 4 tornadoes each year. The Canadian Territories are not typically seen as tornado-prone regions, however tornadoes can occur in tsecondhe region ...
A destructive, two-day tornado outbreak affected the Great Lakes region of the United States and the National Capital Region of Canada in late-September. A total of 37 tornadoes were confirmed, including a violent long-tracked high-end EF3 tornado that moved along a 80 km (50 mi) path from near Dunrobin, Ontario to Gatineau, Quebec, and an EF2 tornado in the Nepean sector of Ottawa.
Alerts distributed by NAAD originate from specially-designated government agencies/ministries and provincial alerting agencies. [50] Severe weather alerts are issued by the federal Environment and Climate Change Canada (ECCC), while all other emergency alert messages are issued by the respective provincial/territorial government organizations. [51]
An intense derecho -- a rapidly-moving thunderstorm complex that produces widespread wind damage -- cut power to nearly 1 million households and caused 11 deaths in the Canadian provinces of ...
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.
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