Coverage and Wind Transport on Mammoth Crest

SNOWPACK OBSERVATION
Submission Info
Forecaster
Thursday, November 30, 2017 - 10:30am
Red Flags: 
Recent loading by new snow, wind, or rain
37° 35' 6.72" N, 119° 0' 4.68" W
Snowpit Observations
More detailed information about the snowpack: 

Toured up to between Hammil Bowl and TJ Bowl below the Sister Chutes. Turned around short of the Crest because of poor coverage (see photo). Skied back down and out Tamarack ski trails.

Snow depth below 9200' - just a few inches. Snow depth from 9200'-10000' - between 40 and 80cm. The melt-freeze crust that was buried during the 11/26-27 storm is about 15-30cm down. I saw no signs of instability. Sheltered areas around Lk. Mary have small surface hoar. Southerly aspects are developing a new melt-freeze crust on top. Light winds from the SW were being channeled through passes and over ridges. I saw snow blowing from SE to NW over the top of Blue Crag and across sub-ridges on the N face of the Crest. Winds were not strong, but snow was transporting at the "saltation" level which is perfect for building wind slabs (see photo).

Again, coverage is not great and the snow is shallow in many places. I was happy to be on my rock skis. Be cautious and don't ruin your season with an early injury.

Snowpack photos: 
Not much coverage on much of the Crest.
Blowing snow over Blue Crag and across the Crest.
Weather Observations
Blowing Snow: 
Yes
Cloud Cover: 
25% of the sky covered by clouds
Air temperature: 
Above Freezing
Wind Speed: 
Light
Precipitation: 
None
Air temperature trend: 
Warming
Wind Direction: 
Accumulation rate: 
None
More detailed information about the weather: 

Prevailing winds from the SW; channeling made them variable.

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