December 28, 2020
December 29, 2020
Zone or Region:
Mt St Helens, Worm Flows Climbing Route
Did you observe any avalanches? Yes
Size 1: Relatively harmless to people
At altitudes of 4,000-4200', the afternoon sun triggered roller balls and a few cornice failures on east facing slopes, The cornice failures appeared to dislodge chunks of the storm slab from the weekend snow but those did not propagate (photo).