Tornado west of Thunder Bay, ON on Aug 31
The NTP has confirmed a tornado that occurred in Northern Ontario west of Thunder Bay on August 31. The tornado was first spotted as a waterspout on Marks Lake. Videos show the tornado then causing EF0 damage as it came ashore. The tornado dissipated shortly thereafter.
More details are provided in the event summary below, as well as a regional map. The tornado can be plotted on a map via the NTP Dashboard .
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Event Name: Marks Lake, ON
Date: August 31, 2024
Start Time: 4:45 PM EDT (2045 UTC)
Final Classification: Tornado (over land)
Final EF-Scale Rating: EF0
EF-Scale Damage Indicator / Degree of Damage: C-SFLF/DOD-1
Tornado location: 48.3419N, 90.2589W
Description: Witness at Marks Lake (west of Nolalu) captured video of a tornado over the water that moved ashore and dissipated shortly after. As the tornado came ashore, a boat dock was flipped and lawn furniture was toppled. No injuries were reported. Damage assessed as EF0 tornado, with estimated max. wind speed of 90 km/h. Information available insufficient to accurately estimate track length, max. path width and tornado motion. Satellite imagery review did not reveal any visible damage.
Location of the EF0 tornado that crossed Marks Lake in Northern Ontario on August 31.
