West Mt. Ridge

Location Name: 
Lone Tree
Region: 
Tamarack Out of Bounds
Date and time of observation: 
Sat, 12/21/2019 - 12:15


Red Flags: 
Recent avalanche activity
Recent loading by new snow, wind, or rain

Observation made by: Public
Snowpit Observations
More detailed information about the snowpack: 

Snow pit is at 7400 just below the bench on east facing Lone Tree Peak south of Tamarack.   HS= 110cm.  In general, the mid and upper pack is right side up.  Of note, the basal 8-10” is either facets that have undergone some melt/free activity or degrading melt/freeze forms. It is topped by a crust that is degrading (at glove).  I isolated 2 ECTs to the ground, both were negative, I pounded until the column under the shovel collapsed (left portion of column).  This situation could lead to a false sense of security since I didn’t see any overt signs of instability.

Snowpit or crown profile photo or graph: 
Any other comments about the observation or links to outside pages that have more info on the observation: 

2nd and 3rd photo, an old  cornice drop induced avalanche as I approached the ridge.  The crown and cornice have already filled back in.  4th photo, As I was walking above where the cornice in the above photos broke, I remotely triggered a new cornice break from a few feet away, it broke back further than expected even while I was at a safe distance.  Broke about 40’ wide and gouged down into old snow over what was likely the crown/path of the original break.

I did not have any collapsing or whoomphing today.  I treated my ECTNs as a false negative and traveled with caution.

My take on hazard is considerable on the north half of the compass.  The PAC forecast from the last 2 days is spot-on, thanks!

Thanks to all that came and donated at the pints for PAC!

Weather Observations
Blowing Snow: 
Yes
Cloud Cover: 
100% of the sky covered by clouds
Air temperature: 
Below Freezing
Wind Speed: 
Strong
Wind Direction: 
South
More detailed information about the weather: 

Nuking, windy and moving a lot of snow on the ridge tops.  My guess is gusts in the 40's.  Gave me a boost walking the ridge back to the resort.