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This article describes severe weather terminology used by the Meteorological Service of Canada, a branch within Environment and Climate Change Canada. The article primarily describes various weather warnings, and their criteria. Related weather scales and general weather terms are also addressed in this article.
Canada ranks as the second country in the world with the most tornadoes per year, after the United States of America. Of the average 60 confirmed tornadoes each year, Alberta and Saskatchewan both average between 14 and 18 tornadoes per season, followed by Manitoba and Ontario with normally between 8 and 14 tornadoes per season.
The National Public Alerting System ( NPAS; French: Système national d'alertes à la population ), branded as Alert Ready ( French: En Alerte ), is the national warning system in Canada, broadcast to Canadian television, radio, and wireless devices. [1] [2] [3]
The May 2022 Canadian derecho was a high-impact derecho event that affected the Quebec City-Windsor Corridor, Canada's most densely populated region, on May 21, 2022.. Described by meteorologists as a historic derecho and one of the most impactful thunderstorms in Canadian history, winds up to 190 km/h (120 mph) as well as around four tornadoes caused widespread and extensive damage along a ...
September 5 – two tornadoes were confirmed in Central Ontario after severe weather swept through the area. The first, a low-end EF0, hit Christian Island causing tree damage. The second tornado was rated an EF1 and touched down in the town of Udney, about 20 km (12 mi) east of Orillia. Six farms, three houses and a community centre storage ...
1Most severe tornado damage; see Fujita scale. 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 ...
The last gasp of severe weather with this first storm will pivot into Ontario, Canada, on Saturday with locally severe storms capable of producing damaging wind gusts, hail and brief flooding ...
The Canadian weather radar network consists of 33 weather radars spanning Canada's most populated regions. Their primary purpose is the early detection of precipitation, its motion and the threat it poses to life and property. Each had until 2018 a range of 256 km (159 mi) in radius around the site to detect reflectivity, 3 angles with a range ...