East Slopes Central - Lake Chelan to South of I-90
Jan. 5, 2016, 8 a.m. PST
Weather: Overcast with low clouds at ridge top level. Snowing lightly. Wind from the east and light. No blowing snow. T air:-4.5C, T surf:-4.0C, T 20:-6.0C, PenSki:25cm, PenFoot:45cm, SurfaceF/E: PP/2mm
Snowpack: HST:20cm F+ laying over SH 10mm with 5cm of FCsf .5-1.0mm beneath. On a north aspect at 4500', in a previously wind loaded area HS=145cm. Midpack in this old wind slab was 1F-P DF and RG 0.5mm. 12/16 SH is at 50cm. On a south aspect at 4500' HS=55. Same HST with SH and FCsf beneath. A 1 cm P crust of MFcl lay below the FCsf. Beneath the crust was 20cm of FC 1-2mm and MF 2-3mm at the ground. New snow would shear at the old snow interface, often failing in the FCsf. Shear was isolated in front of the shovel or ski and would not propagate beyond. Fairly un-cohesive new snow at the moment. The new snow observed was not wind effected.
Area Description: 1/2 mile S of Blewett Pass
Avalanches: Very small loose dry avalanches noted along the highway in steep areas, running within the new snow.
Observation by Nick Pope
Did you see any avalanches? No
Did you trigger any avalanches? No
Was anyone caught in an Avalanche? No