Observed from Mt Baker ski area. Pinpoint release triggered by skier making their descent into an unsupported convex rollover. Pin release activated a wet slide that ran into a gully terrain trap. Skier made for ridge line and was not buried, following skier triggered the avalanche caught on the attached video. Footage is a little rough, I wasn’t sure if it was capturing it.
Wet loose avalanche ran for approximately 200 ft and propagated to a width of about 80 feet. Second wet loose avalanche was triggered by the following skier of two-person tour. Second avalanche was a smaller, faster wet loose avalanche with a pin release that propagated to a width of 40 ft and traveled approximately 150 ft.
No injuries or fatalities observed.
Signs of Unstable Snow
Sun exposed slope looked very reactive on W aspect of Mt Herman.
Observed Avalanche Problem #1:
High likelihood of triggering on unsupported slopes over 35 degrees. D 1.5 size. This happened at 12:30 PM on a sunny day after the backcountry received 1.5 ft. of new snow in the past 36 hours.