Northern Tornadoes Project

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The Northern Tornadoes Project is a research initiative at the University of Western Ontario that focuses on tornadoes and other severe convective storm-related wind phenomena in Canada. It was founded in 2017 by Greg Kopp and David Sills, [1] [2] with the financial support of Toronto-based social impact fund ImpactWX. [3]

Contents

Background

The Northern Tornadoes Project (NTP) was launched in 2017 to improve the detection, assessment and documentation of tornadoes in Canada, particularly for the vast, non-urban regions of the country with low population density, and ultimately determine the true tornado climatology of the country. While piloted aircraft were used initially to identify areas of wind-related damage in forested areas of Ontario and Quebec, high-resolution satellite imagery (nominal resolution 3 m) available on a near-daily basis became a key dataset, allowing the documentation of many tornadoes in Canada's northern forested areas that would otherwise not be identified. [4]

An early success was documenting Quebec's largest tornado outbreak on record in 2017 (17 on June 18). [5] However, this record was tied the very next year (17 on September 5). [5] These were among the largest tornado outbreaks ever recorded in Canada.

The NTP's scope was increased in 2019 to include all tornadoes and other thunderstorm-related damaging wind events (e.g., downbursts) across Canada [4] , with Sills becoming director [6] and Kopp serving as the ImpactWX Chair in Severe Storm Engineering.

Kopp and Sills went on to co-found the Canadian Severe Storms Laboratory (CSSL), a partnership between the University of Western Ontario and ImpactWx, in 2024. [7] [8] [9] The work of the NTP, and other projects, continues under the umbrella of the CSSL.

NTP operations and research

The NTP team under Sills detects, assesses and documents all Canadian tornadoes, makes tornado data publicly available via an open data portal and dashboards that can be used to map event data. [4] It also conducts research using the collected data, including climatology and trend analysis, [10] [11] [12] techniques to improve tornado detection and wind speed estimation, [4] and tornado warning verification. [13]

Peer-reviewed journal articles

Other Scientific Articles

NTP in the media

The work of the NTP has been featured on TV and radio, [14] newspapers, [15] magazines, [16] [17] and podcasts [18] [19] in Canada and the United States.

References

  1. "Dave Sills". CatIQ Connect. Retrieved 2025-01-30.
  2. Corp, Pelmorex (2019-06-14). "Northern Tornadoes Project goes coast-to-coast in hunt for Canadian twisters". The Weather Network. Retrieved 2025-06-03.
  3. "Home". ImpactWX.
  4. 1 2 3 4 5 Sills, David M. L.; Sills, David M. L. (December 23, 2020). "The Northern Tornadoes Project: Uncovering Canada s True Tornado Climatology". Bulletin of the American Meteorological Society. 101 (12). AMS: E2113 –E2132. doi:10.1175/BAMS-D-20-0012.1 via journals.ametsoc.org.
  5. 1 2 "NTP Event Dashboard". uwo.ca/ntp/dashboard. Retrieved 2026-01-08.
  6. "Western News - Tornado alley childhood shaped meteorologist". Western News. June 13, 2019.
  7. Semeniuk, Ivan (28 Oct 2024). "Storm watch: Scientists at Western University are setting up a new laboratory to study the increasingly costly hazard of severe storms in Canada". The Globe and Mail . Retrieved 20 Nov 2024.
  8. Donnini, Alessio (28 Oct 2024). "Canada's 'authoritative source' for severe storm research opens in London, Ont". CBC News. Retrieved 20 Nov 2024.
  9. Allen, Kate (28 Oct 2024). "This summer's rain storms hit by surprise, overwhelming Toronto area residents. A new lab aims to stop that from happening again". The Toronto Star . Retrieved 20 Nov 2024.
  10. Sills, D. M. L.; Durfy, C. S.; de Souza, C. P. E. (2022-02-28). "Are Significant Tornadoes Occurring Later in the Year in Southern Ontario?". Geophysical Research Letters. 49 (4). doi:10.1029/2021GL096483. ISSN   0094-8276.
  11. Daigle, Thomas (July 14, 2023). "Canada's Tornado Alley may be moving from Prairies to Ontario-Quebec, warn researchers". CBC-TV News - The National.
  12. ICI.Radio-Canada.ca, Zone Environnement- (2023-07-14). "Canada's Tornado Alley may be moving from Prairies to Ontario-Quebec, warn researchers". Radio-Canada.ca (in Canadian French). Retrieved 2025-06-03.
  13. 1 2 Sills, David; Elliott, Lesley (2023). "Assessment of Tornado Alerting Performance for Canada". Atmosphere-Ocean. doi: 10.1080/07055900.2023.2257163 .
  14. This statement is attributed to multiple sources: Corp, Pelmorex (2019-06-14). "Northern Tornadoes Project goes coast-to-coast in hunt for Canadian twisters". The Weather Network. Retrieved 2025-06-03.Robinson, Mark (September 14, 2022). "Why you can't rule out tornadoes during Ontario's cooler months". The Weather Network.Daigle, Thomas (July 14, 2023). "Canada's Tornado Alley may be moving from Prairies to Ontario-Quebec, warn researchers". CBC-TV News - The National.Bernstien, Jaela (May 25, 2022). "What's a derecho and why is it so destructive? The science behind this powerful storm". CBC News.Butler, Colin (May 19, 2024). "Wildfires and tornadoes have a tangled relationship. Ontario researchers work to learn why". CBC News.Hendry, Leah (June 6, 2024). "If Canada's tornado alley is shifting east, how can we better prepare?". CBC News. "2 tornadoes damage home, down trees northeast of Edmonton - Edmonton | Globalnews.ca". Global News. Retrieved 2025-06-03.Ismail, Reta (2024-08-09). "Western's Northern Tornadoes Project investigating storm damage near Aylmer". CTVNews. Retrieved 2025-06-03.Allen, Matt (2024). "Canada-wide tornado data at your fingertips on new website". CBC Radio One.Goeree, Josh (2024-07-26). "2022 derecho storm was stronger, deadlier than first recorded: Northern Tornadoes Project". CityNews Ottawa. Retrieved 2025-06-03. "The first Canadian tornado of 2024 touched down in the Amherstburg area". www.am800cklw.com. Retrieved 2025-06-03.ICI.Radio-Canada.ca, Zone Environnement- (2023-07-14). "Canada's Tornado Alley may be moving from Prairies to Ontario-Quebec, warn researchers". Radio-Canada.ca (in Canadian French). Retrieved 2025-06-03.
  15. This statement is attributed to multiple sources: Allen, Kate (July 19, 2023). "Are more tornadoes coming to Ontario? Twister-trackers see signs the bull's-eye is shifting". The Toronto Star. "Tornado-proofing communities". The Globe and Mail. 2022-11-18. Retrieved 2025-06-03.Whang, Oliver (March 10, 2023). "Where is Canada Hiding All Its Tornadoes?". The New York Times.Penaloza, Dani (2022-10-27). "Devastating tornadoes hit Canada without warning — something has to change | Canada's National Observer: Climate News". www.nationalobserver.com. Retrieved 2025-06-03.May 19, Bryan Dickie; Read, 2023 9 Min (2023-05-19). "Eastern Ontario feels abandoned after 2022 tornado". The Narwhal. Retrieved 2025-06-03.{{cite web}}: CS1 maint: numeric names: authors list (link)
  16. Pope, Alexandra (May 21, 2023). "The research project trying to find every tornado in Canada". Canadian Geographic.
  17. "Tornado tracker: How David Sills is uncovering Canada's shifting storm patterns | CAA North & East Ontario". caaneo.ca. Retrieved 2025-09-25.
  18. "The Decibel - Why storms are more destructive now?". The Globe and Mail. September 14, 2022.
  19. Shepherd, Marshall (2021). "Northern Tornadoes Project - Tornadoes North of the Border". Weather Geeks.