Avalanche Occurrence

Avalanche triggered remotely on Avalanche Peak, Galena Summit area. The avalanche broke 1.5-2 feet deep and 60 feet wide. 9300', NE

Observer:

SAC Forecaster

Verified by SAC?

Yes

Occurrence Date:

Dec 27, 2020 (Exact)

Location:

Avalanche Peak East Bowl

Comments:

This occurred on the slope just skier's right of the slope triggered by skiers the day before. It was surprising that this slope hadn't released with that event as they're somewhat connected. I unintentionally remotely triggered this slope from lower angled terrain just above, walking in a track that at least a few other people had walked through. I felt a collapse and the slope below fractured.

# of Avys:

Aspect:

Start Zone Elev:

9300ft

Size:

D1.5

Type:

SS-Soft Slab

Trigger:

AS-Skier
r-Remote

Bed Surface:

O-Old Snow

Depth:

1.5ft (max: 2ft)

Width:

70ft

Start Zone Slope:

40°

Weak Layer:

Dec 11, 2020 (FCsf)

Comments:

Slope had been previously wind loaded, which made the slab thicker and stiffer. Slab was 4F+ at the base, 12/11 FC below were F.

Avalanche triggered remotely from the indicated point. The avalanche broke 1.5-2 feet deep and 60 feet wide. 9300', NE slope on Avalanche Peak, Galena Summit area.

Avalanche Occurrence

General Information

Observer:

Verified by SAC?

Occurrence Date:

Location:

Comments:

Avalanche Characteristics

# of Avys:

Aspect:

Start Zone Elev:

Size:

Type:

Trigger:

Bed Surface:

Depth:

Width:

Start Zone Slope:

Weak Layer:

Comments:

Media