Wet snow instabilities

Wet snow instabilities

Date
Activity
Skiing
Snowmobiling

We skied into Frazier Basin from the Fairy Lake road. On north facing slopes the snow was dry. On south facing slopes there was a 1-2" melt freeze crust which was softening on southeast-south facing slopes around 11am-noon. Snow was generally dry below that crust, probably got a little more wet today than yesterday.

We saw a few natural wet loose avalanches run throughout the middle of the day in sunny, steep rocky terrain. There were at least 4 old, deeper avalanche crowns, most of which had been reported and occurred 1-2 weeks ago.

We dug a snowpit on a north facing slope at 8,300'. Snow depth was 140cm and there was weak depth hoar (4F hardness) 30-40cm above the ground, below a 2-3 foot deep hard slab. Compression tests broke on the depth hoar/facets at CT29 and CT(30+1), sudden collapse/Q1. 

Skies were partly cloudy in the morning and cleared with scattered clouds through the day. Wind was calm.

Region
Bridger Range
Location (from list)
Frazier Basin
Observer Name
Alex Marienthal