Faceted Crusts and Hard Slabs

Location Name: 
Faceted Crusts and Hard Slabs
Williams Lake Area
Date and time of observation: 
Fri, 02/07/2020 - 12:43

Red Flags: 
Whumphing noises, shooting cracks, or collapsing
Recent loading by new snow, wind, or rain

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

The moderate to strong West winds over the last two days have done a number on the snowpack.  Near and above treeline these winds have created hard slabs or breakable crusts.  East, West and South aspects have faceted sandwiched between melt-freeze or sun crusts below these cohesive slabs.  Extended column tests continue to get these weak layers to fail with easy to moderate force with propagation.  In our travels we continue to get loud audible whumf's and shooting cracks.  

Snowpack photos: 
Weather Observations
Blowing Snow: 
Cloud Cover: 
100% 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: 

Temperatures warmed up through the day but remaining below freezing below 9500'.  The morning started off with light snow flurries and by the afternoon the sun was starting to peek through the clouds.  Winds were in the teens gusting into the 30's today out of the West.