Glide cracks in crystals

Location Name: 
Pyramid, Price, Agassiz
Region: 
Desolation Wilderness Area (including Emerald Bay)
Date and time of avalanche (best estimate if unknown): 
Mon, 04/04/2016 - 04:28
Location Map: 
United States
38° 50' 42.5616" N, 120° 9' 20.25" W
See map: Google Maps
US


Red Flags: 
Recent avalanche activity
Rapid warming
Terrain Trap
Observation made by: Public
Avalanche Observations
Avalanche Type: 
Wet
Slope: 
40degrees
Trigger type: 
Natural
Crown Height: 
5 ft
Aspect: 
East
Weak Layer: 
Other
Avalanche Width: 
50ft.
Terrain: 
Above Treeline
Elevation: 
9 500ft.
Bed Surface: 
Other - explain below
Avalanche Length: 
500ft.
Number of similar avalanches: 
4
More detailed information about the avalanche: 

Numerous glide cracks developing on steep rollovers. Very soft surface snow over steep convexities. Glide cracks Releasing during daytime heating. Several cornice breaks noted. Several new cornice breaks in Ropi cliff area. Cornices developing glide cracks on ridge top thinly covered by snow.  All cornices in this area sagging and pulling away. Travel and sliding surfaces all supportable on good corn conditions.   Photo 1. Glide crack release on Pyramid, mid slope, east facing. Photo2. Debris pile up to 5' with refrigerator sized chunks.   Photo 3. Large glide crack on lower Agassiz slope above lake Aloha.  Photo 4. Glide crack lower Price above Aloha

Avalanche Photos: 
Weather Observations
Air temperature: 
Above Freezing
Air temperature trend: 
Warming