Avalanche Occurrence

All Avalanches

General Information

Large avalanches triggered on the Shuksan Arm with control work.

Observer:

NWAC Forecaster

Occurrence Date:

Mar 16, 2022 8:00 am ()

Location:

Shuksan Arm

Avalanche Characteristics

# of Avys:

3

Aspect:

N (NW)

Start Zone Elev:

5400ft

Size:

D3

Type:

HS-Hard Slab

Trigger:

AL-Avalauncher
y-Sympathetic

Bed Surface:

O-Old Snow

Depth:

5ft (max: 8ft)

Weak Layer:

Mar 8, 2022 (FC)

Comments:

Initial avalanche with very wide propagation (+1000'?) that sympathetically released 2-3 other large avalanches on either side Suspected it released in the March 8th FC layer above early March crust. Crown is quite tall right at ridgeline but quickly tapers where it dives downslope - indicative of wind loading.

Media

Large avalanches triggered on the Shuksan Arm with control work.

Large avalanches triggered on the Arm with control work.

Very large debris piles from the avalanche on the Shuksan Arm. Notice the people standing on the debris, for size.

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