Obscured skies with short bursts of heavy snowfall (S1) in the AM. Moderate to strong winds blowing primarily SW. Brief periods of clearing skies and sunshine around 1300 when leaving the field.
Two small natural avalanches (D1) in wind drifted snow on the middle moraine in White River (E aspect near 5800ft). Visibility was poor but the avalanches looked 12-24hrs old and 20-30cm deep.
In wind-sheltered areas between 5400-6400ft, storm snow since 12/8 has settled into an ∼80cm deep, right-side-up snowpack. A mid-storm interface ↓20cm was reactive in snowpack tests. It produced propagation in an extended column test (ECTP16) and sudden planar fractures with moderate force in shovel-tilt tests and hand shears. The snowpack is heavily wind affected above treeline with firm drifts on leeward slopes and many windward areas scoured to ground. Coverage is still shallow with plenty of grass, logs, rocks, and stumps poking through.
Layer Depth/Date: 20-40cm deep
Comments: Uncertainty above treeline.