Avalanche Occurrence

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General Information

A natural wind slab avalanche on Mt St Helens. Likely from Sunday 1/29. SSW 4500ft, HS-N-D2-R2-I, 2ft deep.

Observer:

NWAC Forecaster

Occurrence Date:

Jan 29, 2023 ()

Location:

Mt St Helens

Comments:

This natural slide likely released on Sunday 1/29 during a strong NE-E wind event.

Avalanche Characteristics

# of Avys:

1

Aspect:

S

Start Zone Elev:

4496ft

Size:

D2 / R2

Type:

HS-Hard Slab

Trigger:

N-Natural

Bed Surface:

I-New/Old Interface

Depth:

2ft (max: 3ft)

Width:

80ft

Vertical Fall:

100ft

Comments:

Slide failed on the 1/21 crust.

Media

A natural wind slab avalanche on Mt St Helens. Likely from Sunday 1/29. SSW 4500ft, HS-N-D2-R2-I, 2ft deep.

A natural wind slab avalanche on Mt St Helens. Likely from Sunday 1/29. SSW 4500ft, HS-N-D2-R2-I, 2ft deep.

Hard slab debris from a natural wind slab avalanceh on Mt St Helens, likely from 1/29.

A natural wind slab avalanche on Mt St Helens likely from Sunday 1/29. SSW 4500ft, HS-N-D2-R2-I, 2ft deep

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