EF0 tornado at Borden, ON on June 22

Following an NTP ground survey, we can confirm that a tornado occurred at Canadian Forces Base Borden at Borden, ON on June 22. Initial reports on social media depicted a funnel cloud. The survey was able to find a short track of EF0 damage. We thank the Canadian Forces for allowing our team to conduct an investigation on the base.

An event summary and maps are provided below. The event can also be plotted using the NTP Dashboard found here.


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Event Name: Borden, ON

Date: June 22, 2024

Start Time: 2:55 PM EDT (1855 UTC)

Final Classification: Tornado (Over Land)

Final EF-Scale Rating: EF0

EF-Scale Damage Indicator / Degree of Damage: LRB/DOD-2

Start of damage track: 44.2724N, 79.9264W

End of damage track: 44.2657N, 79.9092W

Location of worst damage: 44.2650N, 79.9147W

Description: Witness captured video of a tornado at CFB Borden, south of Angus. No damage and no injuries were reported. An NTP ground survey was completed on June 23, 2024, documenting weak tree damage and roof damage to a low-rise building. Damage assessed as EF0 tornado, with an estimated max. wind speed of 115 km/h, track length of 1.54 km and max. path width of 290 m. Tornado motion was from the WNW (approx. ​300 degrees). Start time is based on witness account. Satellite imagery review is pending.


BordenTorMap1.png
Map showing the location of the Borden EF0 tornado, southwest of Barrie.


BordenTorMap2.png
NTP survey map. Damage points are limited due to limited access to the grounds at the base. A drone could not be flown.