Two EF2 tornadoes near AB-SK border on July 8
The NTP has confirmed two EF2 tornadoes near the Alberta-Saskatchewan border on July 8. The first tornado affected the Prospect Valley area (event initially named Paradise Valley) and caused damage to a manufactured home, vehicles, grain bins and trees. The second tornado hit Dillberry Lake Provincial Park as it moved from AB to SK, causing significant tree damage, damage to structures, and trailers and boats to be tossed. There were also five injuries at the campground.
Full details are available with the event summaries below, along with a regional map, survey summary maps, and damage photos. The events can also be plotted on a map using the NTP Dashboard here.
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Event Name: Prospect Valley, AB
Date: July 8, 2026
Start Time: 7:30 PM MDT (0130 UTC)
Final Classification: Tornado (over land)
Preliminary EF-Scale Rating: EF2
EF-Scale Damage Indicator / Degree of Damage: MHDW/DOD-12
Start of damage track: 52.9340N, 110.3618W
End of damage track: 52.8868N, 110.2488W
Location of worst damage: 52.9027N, 110.2881W
Description: Witnesses captured video and photos of a tornado that developed northwest of Propsect Valley (south of Paradise Valley). Damage to trees and two residential properties, including a destroyed mobile home, damaged shop and vehicles was reported. No injuries were reported. An NTP ground and drone survey was completed on July 10-11, 2026, documenting the reported damage along with damage to farm machinery. Damage assessed as preliminary EF2 tornado, with an estimated max. wind speed of 215 km/h, track length of 9.23 km and max. path width of 570 m. Tornado motion was from the NW (approx. 305 degrees). Start time is radar estimated. Further investigation pending, including further review of survey observations and satellite imagery review.
Event Name: Dillberry Lake, AB
Date: July 8, 2026
Start Time: 8:02 PM MDT (0202 UTC)
Final Classification: Tornado (over land)
Final EF-Scale Rating: EF2
EF-Scale Damage Indicator / Degree of Damage: C-T/DOD-5
Start of damage track: 52.5888N, 110.0744W
End of damage track: 52.5740N, 109.8729W
Location of worst damage: 52.5821N, 110.0078W
Description: Witnesses captured video and photos of a tornado that developed near Dillberry Lake Provincial Park (southeast of Chauvin, AB) and tracked eastward to Long Lake, SK. Damage to trees, camping trailers and vehicles and a wellhouse was reported. Five injuries were reported. An NTP ground and drone survey was completed on July 9-10, 2026, documenting the reported damage. Damage assessed as an EF2 tornado, with an estimated max. wind speed of 190 km/h, track length of 13.8 km and max. path width of 640 m. Tornado motion was from the W (approx. 275 degrees). Start time is based on witness report. Satellite imagery review is pending.
Regional map showing the start locations for the Paradise Valley EF2 tornado (top) and the Dillberry Lake EF2 tornado (bottom).
Survey summary map for the Prospect Valley EF2 tornado on July 8.
Survey summary map for the Dillbery Lake EF2 tornado on July 8.
Drone image from the worst damage location along the Prospect Valley EF2 tornado path showing a double-wide, well-anchored manufactured home completely destroyed and swept from its foundation. Trees are also down in the vicinity.
Drone image showing the path of the Prospect Valley EF2 tornado, ground scouring and a high damage gradient over the location where farm equipment and vehicles were lofted.
Drone photo from the Prospect Valley damage path of 1972 GMC truck lofted up to ~100 metres from a Quonset structure into a forest. Many trees down in this area as well.
Nadir drone photo of convergent tree damage caused by the Prospect Valley EF2 tornado.
Oblique drone photo displaying the location of worst convergent tree damage caused by the Dillberry Lake tornado.
Nadir drone photo displaying convergent tree damage in the same area.
Oblique drone photo showing destroyed trailers and well house in the Dillberry Lake Provincial Park campground.
Ground photo of well-built well house destroyed with debris throws toward the ESE.
Ground photo of two trailers flipped by the Dillberry Lake tornado, with one being destroyed.
