NTL ATL Simpson Peak

Location Name: 
Williams Lake Area
Date and time of observation: 
Thu, 01/02/2020 - 13:00

Red Flags: 

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

Went for a tour around Simpson Peak to check out both the shallow and deep snowpacks. Our deep areas are 2+ meters. The deep snowpack is strengthening. We found facets in the mid pack to be healing. Our shallower snowpack is a different story. It is not showing signs of healing as quickly. Long column tests showed us that our mid pack and basal weak layers have the energy to fail and propegate. 

We also observed a wind slab which formed from yesterdays western winds. This slab failed with light force. It sits underneath todays 1 to 2 inches of low density snow. This wind slab was only several centimeters deep where we observed it. In other terrain this wind slab is surely deeper and more dangerous. Be wary of cross loaded gullies and leeward slopes below ridgelines. 

Photo 1: High school student Charlie Bayles, conducting a year long snow study research project, observes the 3-4mm depth hoar. Near treeline on a north aspect

Photo 2: Shallow snowpack on a western slope near treeline. Depth hoar and facet crusts underly a finger hard slab.

Snowpit or crown profile photo or graph: 
Snowpack photos: 
Weather Observations
Blowing Snow: 
Cloud Cover: 
75% of the sky covered by clouds
Air temperature: 
Below Freezing
Wind Speed: 
Air temperature trend: 
Wind Direction: 
Accumulation rate: 
Less than 1 in. per hour
More detailed information about the weather: 

A cold morning gradually warmed into the low teens by the afternoon. Eastern winds were moderate and calmed throughout the day. 1-2" of low density snow accumulated today.