Loose Wet Avalanche on the South Side of Jake's

Location Name: Emerald Bay Chutes - Jake's Peak Region: West Shore Area Observation Date & Time: Tuesday, March 27, 2018 - 15:00
Location: 38.962919, -120.118096 See map: CalTopo	Is this an Avalanche Observation?: Yes Conditions Alerts: Avalanche Activity Rapid or Prolonged Warming Rapid or Prolonged Warming›Rollerballs / Pinwheels Rapid or Prolonged Warming›Strong Sunshine Rapid or Prolonged Warming›Warm Temperatures Terrain Alerts: Slopes Steeper than 30 degrees Obvious Slide Path Trigger Points Terrain Traps Terrain Matches the Advisory

Observation made by: Forecaster

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Observation

Description of Snow, Weather, and Avalanche Conditions:

This loose wet avalanche likely occurred in the afternoon on March 27. It was likely a natural release. The debris was 1 to up to 2 ft deep at the deepest and it could have injured a person. The bed surface was a crust. Many other smaller loose wet avalanches had occurred on similar slopes.

Looking up from the toe of the debris of the loose wet avalanche

Avalanche Details

Avalanche Type:

Wet Loose

Failure Plane/Weak Layer:

New/old snow interface

Trigger

Trigger:

Natural

Terrain

Start Zone Slope Angle:

39degrees

Aspect:

Southeast

Starting Elevation:

above-treeline

Size

Destructive Size:

D2 Could bury, injure, or kill a person.

Relative Size:

R2 Small

Crown Height:

Less than 1 ft

Avalanche Width (Average width):

20ft.

Avalanche Length (Vertical Run):

1200ft.

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Loose Wet Avalanche on the South Side of Jake's

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Loose Wet Avalanche on the South Side of Jake's

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