Three more tornadoes on Jun 26 in southern ON
NTP investigation has concluded that three more tornadoes occurred on June 26 in southern Ontario, all in the Tweed area where two tornadoes had already been confirmed. All tornadoes occurred along the leading edge of a line of intense afternoon thunderstorms that day. All five tornadoes were thankfully weak, with ratings ranging from EF0 to EF1.
Details for the three new tornadoes are provided in the summaries below, along with images from the investigation. Event information can also be viewed and plotted via the NTP Dashboard at https://uwo.ca/ntp/dashboard.
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Event Name: Potter Settlement (Tweed), ON
Date: June 26, 2023
Start Time: 4:42 PM EDT (2042 UTC)
Final Classification: Tornado (Over Land)
Final EF-Scale Rating: EF1
EF-Scale Damage Indicator / Degree of Damage: C-T/DOD-5
Start of damage track: 44.5229N, 77.2820W
End of damage track: 44.5339N, 77.2758W
Location of worst damage: 44.5235N, 77.2817W
Description: Satellite imagery review of a storm track of interest revealed a tornado damage path near Potter Settlement in the Tweed area. No damage was reported. Damage assessed as EF1 tornado, with an estimated max. wind speed of 145 km/h, track length of 1.38 km and max. path width of 140 m. Tornado motion was from the SSW (approx. 200 degrees). Start time is radar estimated.
Event Name: Actinolite, ON
Date: June 26, 2023
Start Time: 4:48 PM EDT (2048 UTC)
Final Classification: Tornado (Over Land)
Final EF-Scale Rating: EF1
EF-Scale Damage Indicator / Degree of Damage: C-T/DOD-5
Start of damage track: 44.5796N, 77.2735W
End of damage track: 44.6117N, 77.2501W
Location of worst damage: 44.5917N, 77.2642W
Description: Satellite imagery review of a storm track of interest revealed a tornado damage path northeast of Actinolite. No damage was reported. Damage assessed as EF1 tornado, with an estimated max. wind speed of 145 km/h, track length of 4.17 km and max. path width of 270 m. Tornado motion was from the SSW (approx. 210 degrees). Start time is radar estimated.
Event Name: Elzevir, ON
Date: June 26, 2023
Start Time: 4:54 PM EDT (2054 UTC)
Final Classification: Tornado (Over Land)
Final EF-Scale Rating: EF0
EF-Scale Damage Indicator / Degree of Damage: SBO/DOD-6
Start of damage track: 44.6447N, 77.2886W
End of damage track: 44.7098N, 77.2224W
Location of worst damage: 44.6643N, 77.2688W
Description: Satellite imagery review of a storm track of interest revealed a possible tornado damage path in the Elzevir area. An NTP ground and drone survey was completed on September 9, 2023, documenting a path of weak tree damage as well as structural damage to a barn. Damage assessed as EF0 tornado, with an estimated max. wind speed of 130 km/h, track length of 9.01 km and max. path width of 350 m. Tornado motion was from the SW (approx. 215 degrees). Start time is radar estimated.
Map showing the locations of the five tornadoes in the Tweed area on June 26, with the tornado icon showing the start point, the red dot indicating the location of worst damage, and the yellow dot indicating the end point. The three new tornadoes are labelled and have magenta boxes around the tracks.
Planet.com satellite image showing area with EF1 damage near Potter's Settlement.
Planet.com satellite image showing area with EF1 damage near Actinolite.
Photo of EF0 barn damage from damage survey in Elzevir area.
Drone image of EF0 tree damage from damage survey in Elzevir area.
