Avalanche Involvement

Observed Oct 29, 2018, 11:00 a.m. PDT · banff-yoho-kootenay

This report was submitted with an older form.

Incident report

Group size
3
Description
Parks Canada responded to an InReach activation for three skiiers who were hit by a natural avalanche in a couloir on the east ridge of Mt. Patterson. There were no burials, but all three went for a ~100m tumble sustaining various injuries, the worst being a head injury and broken ribs. Gear was lost and all three were evacuated to a waiting ambulance. The avalanche appeared to be a loose dry avalanche that gained mass and was concentrated in the steep gullied terrain
Terrain trap
Gully depression
Group activity
Skiing
Number injured
0
Number involved
3
Number caught only
3
Number fully buried
0
Snow depth trigger point
Shallow
Terrain shape trigger point
Planar
Number partly buried able breathing
0