Sherwins - NE Ridgetop winds, no signs of instability

Submission Info
Monday, March 11, 2019 - 3:00pm
Red Flags: 
37° 36' 27.81" N, 118° 59' 25.8612" W
Snowpit Observations
More detailed information about the snowpack: 

Quick tour up to the Sherwin ridgetop at 10,000' and back down to the end of Old Mammoth Rd.  Calm winds except light to moderate consistent NE winds over highest ridgetop (see attached videos, one showing mostly sublimation of snow being transported upslope) and light winds up-slope out of Poop Chute at 9000'.  See attached photo of micro-cornice feature that formed recently on the top of Poop Chute facing the opposite side of ridge than chute from these upslope winds.  No signs of cracking or any other signs of unstable snow on the northwesterly zone of the Sherwins.  Touring out across the ridgetop to the south facing slopes only showed signs of previous SW wind etching, and none from the relatively light NE today.  I would guess that some more isolated areas exist elsewhere where topography does induce some wind deposition and small windslab formation than where I checked out today.    Snow in the top 50' below ridgeline (NE facing slope) was wind-effected, below that snow still soft in protected trees.

Snowpack photos: 
Snowpit videos (tests, etc): 
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: 

This morning had thick clouds and some light flurries.  By afternoon skies cleared significantly to mostly sunny.  Cold temps mid-afternoon in the 20s from 8000-10.000'.

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