Remote triggering storm slabs all over the place

Location Name: 
N face near treeline under Lake Fork
Region: 
Williams Lake Area
Date and time of observation: 
Tue, 02/28/2017 - 11:00
Location Map: 
United States
36° 33' 38.3868" N, 105° 26' 18.1176" W
US


Red Flags: 
Recent avalanche activity
Whumphing noises, shooting cracks, or collapsing
Recent loading by new snow, wind, or rain
Obvious avalanche path
Terrain Trap

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

Andy and Erna the dog and I went for an exploratory skin to see what the storm snow and wind effect was doing this morning (tues).  Wow, things were moving!  While skinning up the Williams Lake trail we triggered dozens of whoomphing collapses in the flats.  The new 16-24" of medium density snow from last night/ this morning was collapsing the lower density 2-4" from Monday.  By the time we got to steeper rollovers we were triggering collapse and shooting cracks left and right, and anything steeper than about 35 degrees was sliding on the new snow / old snow interface (see video and pics).  We were able to remotely trigger any and all steep slopes we were near, and kept clear of anything but small test slopes.  Andy and I suspected we were there at peak instability, and hoped things would settle down in the coming days....

Trailbreaking was moderately tough (thanks Andy) and Erna will be asleep for at least a day or two as it was overhead for her.  By noon it had mostly stopped snowing , but the wind continued to howl, and was actively moving snow.  We were not able to get into the alpine but surmised that there were likely storm slabs growing to 4plus feet in thickness with strong WSW winds.  We did see a few debris piles in the fans of the upper elevation slopes, but visibility was poor, so we weren't able to see any crowns.

Snowpack photos: 
Snowpit videos (tests, etc): 

storm slab 2-28-17

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

Cold and snowy with strong WSW winds.  Snow mostly quit by noon, but winds continued to transport snow.