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Avalanche Near Tamarack

Location Name: Fireplug Region: Mount Rose Area Observation Date & Time: Sunday, December 4, 2022 - 13:45
Location: 39.326404, -119.910895 See map: CalTopo	Is this an Avalanche Observation?: Yes Conditions Alerts: Avalanche Activity Other Signs of Instability (cracking, whumpfing, collapsing)›Collapsing / whumpfing noises Other Signs of Instability (cracking, whumpfing, collapsing)›Shooting Cracks Persistent Problem Terrain Alerts: Slopes Steeper than 30 degrees Obvious Slide Path Trigger Points

Observation made by: Public

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Observation

Description of Snow, Weather, and Avalanche Conditions:

Skier triggered avalanche. Whumphing & shooting cracks witnessed 60' from site of avalance in low angle terrain. Skied over to edge of chute and witnessed full slide.

Shooting cracks went from low angle terrain near a grouping of trees. Wrapped around the slope and over the edge of the chute. This appreared to cause a full scale avalanch on the previous old snow. Crown appeared to be 1'-3'.

Continued skiing sub 30° snow. Further whumphing and cracking witnessed in almost every location travel. 8600'-9800'.

Terrain Details

Terrain: elevations:

Near Treeline

Terrain: aspects:

Avalanche Details

Avalanche Type:

Storm Slab

Failure Plane/Weak Layer:

New/old snow interface

Trigger

Trigger:

Skier

Trigger Modifier:

Remotely Triggered

Terrain

Start Zone Slope Angle:

25degrees

Aspect:

Northeast

Starting Elevation:

near-treeline

Size

Destructive Size:

D2 Could bury, injure, or kill a person.

Relative Size:

R2 Small

Crown Height:

2 ft

People Involved

Number of people caught:

Number of partial burials:

Number of full burials:

Weather Details

Elevation of Observation:

Above 9000 ft.

Blowing Snow:

Light

Wind Direction:

Northeast

Wind Speed:

Moderate

Sky Cover:

Scattered - Partly Cloudy - 3/8 to 4/8 covered

Precipitation:

Snow

Air temperature:

Below Freezing

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