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Recreational Observation

Stevens Pass

Dec. 23, 2016, 11 a.m. PST

Weather: All of the above: Warm, cold, foggy, snowing, clearing. Easterly flow kept it cool much of the afternoon on ridges. -5c air temp around 11am.

Snowpack: 165 cm total snow depth. Slightly wind-affected 4-finger Storm snow 165-145 cm - Sun crust 145 cm - (1 finger) near surface facets (4-finger) gave way to predominantly strong, decomposing snow forms (1-finger) 140 cm and below. Compression test on a ~35 degree slope above a 40+ degree slope: CT 15 Q2 at 145 cm on near surface facets.

Area Description: Pit on east-facing slope on ridge between Lanham and Henry Drainages. Just below 5600'

Avalanches: Cornice fall and wind slab avalanches were abundant on steep easterly slopes. Quite the natural cycle early last week when ridges loaded and then warmed (19-21 DEC 2016). At W and E aspects, storm snow was picking up momentum under small cornice drops in steep terrain, but disturbance was limited to surface snow.

Observation by Nate Hough-Snee

Latitude: 47.746498

Longitude: -121.009018

Did you see any avalanches? Yes

Did you trigger any avalanches? No

Was anyone caught in an Avalanche? No