Valanga

Glacier Peak

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Quick report

We did a 2 day trip of Glacier Peak over Easter weekend. Overall we observed solid stability despite up to a foot of new snow from the Wed-Friday weather cycle preceding the trip. Very little snow below 4000' with continuous skinning from 4400' for our group. On sun affected aspects the warming has brought a number of small-to-D1 wet loose avalanches, entirely confined to the new snow layers as far as we could tell. The higher elevation basins and sheltered Northerly aspects sheltered cold snow into Sunday afternoon, which was largely non-cohesive, and many of these slopes had 1-2mm surface hoar that developed over the cool, clear nights this weekend. On Glacier Peak proper, above 8k' the wind kept the heat at bay, but ravaged the new snow into a mix of sastrugi, rime, and powdery wind drifts, depending on aspect and terrain features available for capture. Below 8k, the surface was largely secured by sun crusts and very little snow was available for transport. We did observe a few isolated natural wind slabs. Two far in the distance on Northerly aspects just below ridge lines (potentially cornice triggered), and one ~D1 at the base of a steep rocky section on the WSW side of Point 7829 at 7200'. We believe this latter one broke overnight on Saturday because it was close to the up track and we had not notice it Saturday afternoon when observing the route form camp.

Avalanche

Many small-to-D1 wet loose avalanches in the new snow layers on Southerly aspects, and a few isolated natural D1-2 wind/storm slab avalanches at the base of rock bands or under corniced ridges.