Hard Surface conditions and deteriorating crusts in the Sherwins

Mammoth Rock
Submission Info
Wednesday, February 19, 2020 - 3:00pm
Red Flags: 
37° 36' 44.9352" N, 118° 59' 38.1228" W
Snowpit Observations
More detailed information about the snowpack: 

I went for a quick tour this afternoon Above Mammoth rock to check on surface conditions. particularly I was curious to see how much if any the surface faceting had occurred since last Sunday. I was glad to have my ski crampons as I climbed to 9500’ or so. The surface is still supportable and quite slick in places. Although I did find a few areas where the crust is much thinner and more breakable as well as a few areas with loose near-surface facets on the surface.  when I was up here last Sunday, I observed the crust to be knife hard and 5-10 cm thick. Today I found it to be equally as hard but much thinner, 1-5 cm. Long story short, yes the crust is deteriorating but no it has not gone yet. Things are still quite firm and slick in this area. I took my time descending searching for areas without old tracks, or wind effects. The 3-dimensional aspect to much of the hard surface is making things a bit chattery.

Snowpack photos: 
Weather Observations
Blowing Snow: 
Cloud Cover: 
25% of the sky covered by clouds
Air temperature: 
Below Freezing
Wind Speed: 
Air temperature trend: 
Wind Direction: 
Accumulation rate: 
More detailed information about the weather: 

Cool temperatures and Mostly Clear this afternoon with a light breeze from the WSW. 

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