Avalanche Occurrence

The crown of a large natural avalanche that likely ran in the early morning of Feb 8th on a wind-loaded slope outside of Stevens Pass Resort. Upper Mill Creek, NE, 5,400ft

Observer:

NWAC Forecaster

Occurrence Date:

Feb 8, 2023 ()

Location:

Lumiere Ridge, Rooster Comb

Comments:

Very recent natural slab avalanche in wind-loaded terrain. Likely occurred between midnight and dawn on the 8th. Ran either within the recent snow or on the MLK crust. Details below are for the avalanche pictured. Received reports of another 3-4 natural avalanches that occurred at a similar time, lower in the terrain on adjacent slopes.

# of Avys:

4

Aspect:

NE

Start Zone Elev:

5400ft

Size:

D2 / R2

Type:

HS-Hard Slab

Trigger:

N-Natural

Depth:

2.5ft (max: 3ft)

Weak Layer:

Jan 15, 2023 (MFcr)

Debris from natural avalanches occurring on 2/8 above Lake Susan Jane. North aspect

Crowns of 3 natural avalanches that occurred on 2/8 above Lake Susan Jane. NE, 5,400-5,200ft.