 | |
| Date(s) | May 21, 2022 |
|---|---|
| Duration | 9 hours |
| Track length | 620 mi (998 km) |
| Peak wind gust (measured) | 89 mph (143 km/h; 39.8 m/s) (Magog, Quebec, Canada) |
| Peak wind gust (est.) | 118 mph (190 km/h; 52.8 m/s) (Ottawa, Canada)[1] |
| Tornado count | 4[2] |
| Strongest tornado1 | CEF2 tornado |
| Fatalities | 12[3] |
| Damage costs | C$ 875 million[4] ($780 million USD) |
| Types of damage | Widespread damage to residential and commercial property and public utility infrastructure |
| Areas affected | Southern Ontario, southern Quebec |
| 1Most severe tornado damage; see Enhanced Fujita scale | |
The May 2022 Canadian derecho was a high-impact derecho[5] 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,[6][7] winds up to 190 km/h (120 mph) as well as around four tornadoes caused widespread and extensive damage along a path that extended for 1,000 kilometres (620 mi).
Three cities across southern Ontario declared a state of emergency. At least twelve people were killed, mostly by falling trees.[8] Power outages affected an estimated 1.1 million customers, and thousands were still without power a week after the storm.[9] Hydro Ottawa described the damage dealt to its power distribution system as more severe than the 1998 ice storm. The storm was the sixth-costliest event in Canadian history.[10]
According to an estimate published on June 15 by the firm Catastrophe Indices and Quantification (CatIQ), the insured damage would amount to C$875 million, that is, C$720 million in Ontario and C$155 million in Quebec. This ranks the derecho as the sixth-costliest natural disaster in Canada in terms of insurance claims.[4]
- ^ Woods, Michael (25 May 2022). "Ottawa storm winds reached 190 km/h: researchers". CTV News. Retrieved 25 May 2022.
- ^ Cite error: The named reference
NTP June 27 updatewas invoked but never defined (see the help page). - ^ "Maps for May 21st derecho and all 2022 ground surveys". uwo.ca. Northern Tornadoes Project. 25 November 2022. Retrieved 22 May 2023.
- ^ a b Canadian Press (15 June 2022). "Plus de 875 millions de dollars de dommages assurés". La Presse (in French). Retrieved 15 June 2022.
- ^ "What is a 'derecho'? Climatologist explains Saturday's powerful storm". CTV News. 22 May 2022. Retrieved 23 May 2022.
- ^ Cite error: The named reference
NearlyHalfwas invoked but never defined (see the help page). - ^ "Deadly derecho affected nearly half of Canada's population, spawned EF2 tornado". AccuWeather. 25 May 2022. Retrieved 29 May 2022.
- ^ "11th person dies from weekend storm, tens of thousands Ontarians still without power". CP24.com. Bell Media. 26 May 2022. Retrieved 27 May 2022.
- ^ "Two more tornadoes confirmed in Ontario from destructive derecho". The Weather Network. The Weather Network. 28 May 2022. Retrieved 29 May 2022.
- ^ "May 21 storm ranked 6th most expensive natural disaster in Canadian history: IBC". 15 June 2022.