Avalanche on Relay Peak

Location Name: Relay peak Region: Mount Rose Area Observation Date & Time: Monday, April 6, 2020 - 14:00
Location: 39.314179, -119.945984 See map: CalTopo	Is this an Avalanche Observation?: Yes Conditions Alerts: Avalanche Activity Terrain Alerts: Slopes Steeper than 30 degrees Obvious Slide Path Trigger Points Terrain Traps Terrain Matches the Advisory

Observation made by: Public

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Observation

Description of Snow, Weather, and Avalanche Conditions:

Skier trigger avalanche. The skier was the second skier of a group of 3. First skier descend the same line as what skier two was about drop into. Skier 2 felt the slab give out under feet and run approximately 800'. I was the 3rd. In line, on a split board, but to the skiers right on a more gradual slope.

Snowpit or crown profile photo or graph:

Terrain Details

Terrain: elevations:

Above Treeline

Terrain: aspects:

Avalanche Details

Avalanche Type:

Storm Slab

Failure Plane/Weak Layer:

New/old snow interface

Trigger

Trigger:

Skier

Trigger Modifier:

Accidentally Triggered

Terrain

Start Zone Slope Angle:

35degrees

Aspect:

East

Starting Elevation:

above-treeline

Size

Destructive Size:

D2 Could bury, injure, or kill a person.

Relative Size:

R4 Large

Crown Height:

1 ft

Avalanche Width (Average width):

250ft.

Avalanche Length (Vertical Run):

800ft.

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Avalanche on Relay Peak

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Avalanche on Relay Peak

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