Sawtooth Avalanche Center

Avalanche Occurrence

View Associated Field Report

General Information

Two large avalanches failing on a W-SW slope at 9,200'.

Observer:
SAC Forecaster

Verified by SAC?
Yes

Occurrence Date:
Mar 31, 2023 (Exact)

Location:
Johnstone Peak

Comments:

Multiple fresh crowns off Johnstone Peak on W-SW slopes between 9,200-9,400'. The large avalanches appear to have failed on a shallow melt freeze crust during a brief period of sun.

Avalanche Characteristics

# of Avys:
3
Aspect:
W (SW,S)
Start Zone Elev:
9400ft
Size:
D2
Type:
SS-Soft Slab
Trigger:
N-Natural

Media

Two large avalanches failing on a W-SW slope at 9,200'.
Multiple large avalanches appeared to fail on a melt-freeze crust on W-SW slopes at around 9,400'.