February 20, 2021
February 21, 2021
Zone or Region:
Humpback Mountain (seen from 90 W)
Did you observe any avalanches? Yes
Size 2: Could bury, injure, or kill a person
While driving W-bound on I90 @ 1730 witnessed the tail end of a slide on Humpback Mountain (best guess). Large snow cloud and debris visible from highway. Did not get a very good look as witnessed while driving.
Earlier in the day performed a CT w/ AIARE 1 class that found Q1 CTH21 at 4000’ elevation (Snow Lake).