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Avalanche activity near Donner Ridge

Location Name: Donner ridge area Region: Donner Summit Area Observation Date & Time: Sunday, December 27, 2020 - 08:45
Location: 39.352939, -120.292919 See map: CalTopo	Is this an Avalanche Observation?: Yes Conditions Alerts: Avalanche Activity Recent Loading Recent Loading›More Than a Foot of New Snow Terrain Alerts: Slopes Steeper than 30 degrees Obvious Slide Path Trigger Points Terrain Matches the Advisory

Observation made by: Public

Tabs

Observation

Description of Snow, Weather, and Avalanche Conditions:

Snowpack Details

Persistent Weak Layers:

Not observed

Terrain Details

Terrain: elevations:

Near Treeline

Terrain: aspects:

N

NE

Avalanche Details

Avalanche Type:

Wind Slab

Trigger

Trigger:

Skier

Terrain

Start Zone Slope Angle:

38degrees

Aspect:

North

Starting Elevation:

near-treeline

Size

Destructive Size:

D1 Relatively harmless to people.

Relative Size:

R1 Very Small

Crown Height:

Less than 1 ft

Avalanche Width (Average width):

100ft.

Avalanche Length (Vertical Run):

50ft.

Weather Details

Elevation of Observation:

7000 - 8000 ft.

Sky Cover:

Overcast - Cloudy - 8/8 covered

Air temperature:

Below Freezing

Sponsors:

Heavenly Mountain Resort

Mt. Rose Ski Tahoe

Kirkwood Mountain Resort

CA OHMVR

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