Northwest Avalanche Center

Observation: Public

All Observations

Observation Details

Name:
Mason
Observation Date:
February 24, 2021
Submitted:
February 24, 2021
Zone or Region:
Olympics
Activity:
Skiing/Snowboarding
Location:
First Top Mountain

Signs of Unstable Snow

None reported

Observations

Climbed First Top Mountain via Heather Park trail.
7.1 miles, 7hrs total
Snow Assessment of the SE face.
Elevation: 4752'
Weather: Scattered Clouds
Temperature: 25⁰
Slope Angle: 30⁰
Total Snow Depth: 175cm

Shovel Shear Test:
Fracture at:
7cm below serface, 3 total taps
37cm below surface, 7 total taps
65cm below surface, 13 total taps

ECT:
Ectna x2
Did not fracture after 30 total taps on both sides of the column.

Media

Snow layer profile.
Shovel Shear Test With A Fracture @ 7cm.
Fist hardness, 4 finger hardness, 3 finger hardness, 1 finger hardness, 1 finger hardness.
Extended Column Test x2 Na.
6cm Persistant Weak Layer 110cm below the surface.
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