Observation: Lake Peak

Observation Date
1/20/2015
Observer Name
Greg Gagne
Region
Salt Lake » Little Cottonwood Canyon » White Pine » Lake Peak
Location Name or Route
Lake Peak
Weather
Sky
Few
Wind Speed
Calm
Weather Comments
Very pleasant temps (-10C) for the first time in a long while. Clear and windless - beautiful weather for tours in the alpine.
Snow Characteristics
New Snow Depth
1"
New Snow Density
High
Snow Surface Conditions
Powder
Dense Loose
Wind Crust
Melt-Freeze Crust
Snow Characteristics Comments

Hard to select "Powder", but a few cms of graupel and what appears to be rimed crystals teased the snow surface. The snowpack is quite supportable most everywhere with 5 cms ski pens. Some thin wind slabs at most 5 cms (2") thick and would break (not propagate) around your skis. Snow depths are thin - mostly < 1 m where we were traveling, with particularly weak snow in rocky terrain.

Comments

Morning tour ascended Lake Peak and descended Lake Chute. The winds from the past several days have smoothed out and filled in many leeward aspects providing excellent travel conditions for alpine tours. Am submitting an observation mostly to confirm what I feel is a Low hazard right now. Cannot find any sensitive wind slabs, and although I was in one of the parties that found a persistent weak layer of surface hoar on a mid-elevation slope this past weekend, I think these are very much outliers, and Jason Konigsberg's always excellent observation shows he could not find any mid-pack weaknesses in Millcreek.

For those interested in reading more on how to manage buried surface hoar, Doug Chabot has some excellent thoughts in a piece in TAR.

Overall am finding a very stable snowpack with fair structure.

Photo is of what appears to be a relatively recent debris pile in N-facing Boulder Basin below Lake Peak of what looks to be a class 2 soft slab. Winds have filled in and/or eroded any visible crown, although it appears to have started up high in steeper, rocky terrain. A quick scan of UAC site and this appears to have been unreported.

Usually don't include photos of partners/turns/etc as I think observations are for snowpack only, but this photo gives you an idea of our generally thin conditions in the alpine. My partner Jack wallowing in rocky facet gardens at 10,700'

Excellent interview with our very own Drew Hardesty in "Utah Adventure Journal". Free copies available in rock gyms and outdoor shops.

Today's Observed Danger Rating
Low
Tomorrows Estimated Danger Rating
Low