Detailed Observation

Date2020-02-29
LocationHaines
ObserverErik Stevens
AvalancheN

General Observations

Skied up 7-mile saddle and Chilly ridge, and dropped north into bowl towards Lutak. Snow quality was breakable crust over powder in most places (great on a snowboard, terrible on skis). Tested several slopes and aspects, mellow at first, stepping up to steeper slopes. Started out digging a pit on South aspect at about 2000ft, 20 degree slope. Found about 1m of recent storm snow over 1m of settled base. Top layer of wind slab was easy to trigger and propagate (ECTP8 down 10cm on stellars, repeated twice). Beneath that there were several density interfaces in the recent storm snow, the most concerning of which was down 35cm (ECTN22 down 35cm, x2). This layer didn't propagate in our pit, but probably could propagate in more wind-affected areas with a stiffer slab, so we were on guard about this. 

From there we moved up to higher, more northerly aspects around 3000ft which weren't as wind affected and found the snow to be well bonded. Still we were very careful about group management and exposure in steeper terrain given how recent the storm layers are.  Overall had a great day out. Weather was sunny, turning cloudy with light snow in the afternoon. Temperatures near 20F. Calm winds.

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