Pincher Creek 101 kms from Lethbridge is up next, not on hwy 3, but a bit south on #6. this area gets weird winds, and the hwy has lots of wind warning signs. Elv.1130 m, or 3710 ft.
Highest recorded winds were 177kms/h. Chinook winds coming of the Rockys, change the temps very quickly. Jan 1962 weather changed from - 19c to +22c. in a few hours.
https://www.youtube.com/watch?v=4nLSB9oLI14