No Name Peak

Location Name: 
Hard Slabs Above Treeline
Region: 
Williams Lake Area
Date and time of observation: 
Thu, 01/16/2020 - 13:00



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

Snow fell continuously throughout the day, but the rate of snowfall really picked up after 2pm. Higher elevations picked up around 3" during the duration of our tour. Light to moderate winds accompanied this snow.

In areas above treeline, and open areas near treeline, we found slopes with hard slabs on the surface from previous wind events. This layer sits atop various weak layers, from decomposing fragments to near surface facets. The hard slab consistently failed under light force and fully propagated. Beneath this hard slab, the snowpack is very weak overall. Various facet layers are squished between decomposing slabs.

On solar aspects at all elevations, the snowpack is very weak. It consists of multiple layers of faceted crusts. West aspects are scoured, with cross loaded gullies the only terrain holding snow. 

We found the snowpack on all aspects in shallower areas to be overall faceting. The brunt of the storm ramped up after our tour concluded.   

Photo 1: Hard slab failed on near surface facets with light force and full propagation.   

Snowpack photos: 
Weather Observations
Blowing Snow: 
Yes
Cloud Cover: 
100% of the sky covered by clouds
Air temperature: 
Below Freezing
Wind Speed: 
Light
Precipitation: 
Snow
Air temperature trend: 
Static
Wind Direction: 
Southwest
Accumulation rate: 
Greater than 1 in. per hour
More detailed information about the weather: 

Temps were below freezing in the low to mid 20's. Low density snow fell lazily in the morning. Accumulation rates picked up in the early afternoon, to potentially above 1" per hour. 2-3" of accumulation during our tour. Light to moderate winds were primarily out of the southwest.