Avalanche

Tsaina Corner

Gareth Brown
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Observation photo 1Observation photo 2Observation photo 3

Quick report

Found a variety of wind affected snow ranging from knife hard unreactive wind slabs to wind stripped slopes that were breaking down and faceting due to diurnal temperature swings.  The only protected snow was found at the bottom 50' of the slope in pockets.  1mm surface hoar was observed at valley floors and 200' up the slope then quickly dissapeared as snow surfaces became more wind affected.

No signs of instability

Weather

Air Temp
18
Cloud Cover
clear
Wind Loading
previous
Rain Elevation
1800
Recent Snowfall
0
Snow Avail For Transport
none

Clear calm and inverted. -10 at valley floors, 18 above at 4k.

Snowpack

Found mid and upper snowpack to have good strength and structure. ECTX.  more detail in snow pit profile.

 

Avalanche

Full depth hard slab observed in W-NW facing basin that failed during 1/30 natural cycle. Crown at 5600', ~2000' in length, and ~2 meters deep