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Since its initial usage in May 1999, the National Weather Service (NWS) in the United States has used the tornado emergency bulletin — a high-end classification of tornado warning — sent through either the issuance of a warning or via a "severe weather statement" that provides updated information on an ongoing warning—that is issued when a violent tornado (confirmed by radar or ground ...
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.
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]
Wisconsin hit the average of 23 tornadoes in May, with 16 occurring on May 21 alone. June is historically the month when most tornadoes occur in the state. More: Wisconsin is already at yearly ...
The National Weather Service did not issue any thunderstorm or tornado warnings last winter. ... which limits how far south cold air intrusions from Canada can travel into Wisconsin, Anderson ...
In Canada, tornadoes are rated based on the damage they cause using a set of "Damage Indicators" which estimate wind speeds based on different levels of damage. Before April 1, 2013, the scale used to rate tornadoes in Canada was the Fujita scale. Following this day, Environment Canada started to use the Enhanced Fujita scale. [2]
The weather service warned that pea-sized hail is possible in the warning area as a new round of storms sits over southwestern Wisconsin and will make its way into the Milwaukee area Tuesday night.
Severe weather activity became more isolated and scattered on May 27, marking the end of the outbreak sequence. In all, 248 tornadoes occurred during the outbreak sequence; 20 (+1 indirect) people were killed by tornadoes while 10 other people died due to non-tornadic events as well. Over 240 people were injured.