Two late-season tornadoes in SK on Sep 18
NTP investigation, including a ground / drone survey, has resulted in the confirmation of two late-season tornadoes in southeast Saskatchewan with the storms on September 18. Both tornadoes - each rated EF1 - were spawned from the same supercell thunderstorm that moved from southeast to northwest near Whitewood, SK. The storm survey found some structural damage as well as tree damage.
Details are provided in the event summaries below, along with maps and photos. You can plot these tornadoes on a map via the NTP Dashboard .
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Event Name: Vandura, SK
Date: September 18, 2024
Start Time: 4:40 PM CST (2240 UTC)
Final Classification: Tornado (Over Land)
Final EF-Scale Rating: EF1
EF-Scale Damage Indicator / Degree of Damage: FR12/DOD-4
Start of damage track: 50.0359N, 102.0972W
End of damage track: 50.1011N, 102.1806W
Location of worst damage: 50.0740N, 102.1467W
Description: Witnesses captured video and photos of a tornado in the Vandura area. Damage to a home, trees and a grain bin at a rural property was reported. No injuries were reported. An NTP ground and drone survey was completed on September 19-20, 2024, documenting the reported damage and additional damage to trees and a home. Satellite imagery review revealed isolated tree damage. Damage assessed as EF1 tornado, with an estimated max. wind speed of 155 km/h, track length of 9.39 km and max. path width of 310 m. Tornado motion was from the SE (approx. 140 degrees). Start time is based on radar imagery and witness account. A second tornado later developed near Poplar Grove, causing EF1 damage before dissipating south of Whitewood.
Event Name: Poplar Grove, SK
Date: September 18, 2024
Start Time: 5:05 PM CST (2305 UTC)
Final Classification: Tornado (Over Land)
Final EF-Scale Rating: EF1
EF-Scale Damage Indicator / Degree of Damage: C-SFLF/DOD-2
Start of damage track: 50.1752N, 102.2570W
End of damage track: 50.2403N, 102.3344W
Location of worst damage: 50.2129N, 102.3038W
Description: Witness captured photos of a tornado near Poplar Grove (north of Langbank). Tree damage was reported. No injuries were reported. An NTP ground and drone survey was completed on September 19-20, 2024, documenting the reported damage as well as additional tree damage, destroyed cattle sheds and damage to fences. Damage assessed as EF1 tornado, with an estimated max. wind speed of 135 km/h, track length of 9.12 km and max. path width of 150 m. Tornado motion was from the SE (approx. 145 degrees). Start time is radar estimated. Partial satellite imagery review revealed some visible crop damage along the tornado track (further investigation is pending). An earlier tornado developed north of Vandura and caused EF1 damage before dissipating.
Regional map showing the locations of the two EF1 tornadoes in southeast SK.
Survey map showing the track of the Vandura, SK EF1 tornado with the locations of ground and drone photos.
Survey map showing the track of the Poplar Grove, SK EF1 tornado with the locations of ground and drone photos.
EF1 damage to a house roof in the Vandura, SK area.
Another house in the Vandura, SK area had windows broken and mud splattered.
Damage to cattle shed, wind break fences and trees at a farm in the Poplar Grove, SK area.
