The last avalanche forecast for the 2023-2024 season will post on April 21st. Thank you to all who contributed to the avalanche center this season through observations, volunteer time, and/or financial contributions.

Avalanche visible from Andesite Ridge

Location Name: Andesite Ridge Region: Donner Summit Area Observation Date & Time: Saturday, April 8, 2023 - 14:42
Location: 39.355300, -120.366150 See map: CalTopo	Is this an Avalanche Observation?: Yes Conditions Alerts: Avalanche Activity Persistent Problem Rapid or Prolonged Warming›Rain on Snow Rapid or Prolonged Warming›Strong Sunshine Rapid or Prolonged Warming›Warm Temperatures Recent Loading›Blowing Snow Recent Loading›Rain on Snow Terrain Alerts: Slopes Steeper than 30 degrees Terrain Matches the Advisory

Observation made by: Educator at Blackbird Mountain Guides

Tabs

Observation

Description of Snow, Weather, and Avalanche Conditions:

Spotted this small natural wet loose slide from the West slope of Andesite ridge.

Natural wet loose avalanche seen from Andesite Ridge

Avalanche Details

Avalanche Type:

Wet Loose

Failure Plane/Weak Layer:

New/old snow interface

Trigger

Trigger:

Natural

Terrain

Start Zone Slope Angle:

30degrees

Aspect:

East

Starting Elevation:

below-treeline

Size

Destructive Size:

D1 Relatively harmless to people.

Relative Size:

R1 Very Small

Crown Height:

1 ft

Avalanche Width (Average width):

30ft.

Avalanche Length (Vertical Run):

100ft.

Sponsors:

This website is owned and maintained by the non-profit arm of the Sierra Avalanche Center. Some of the content is updated by the USDA avalanche forecasters including the forecasts and some observational data. The USDA is not responsible for any advertising, fund-raising events/information, or sponsorship information, or other content not related to the forecasts and the data pertaining to the forecasts.

Forecast Links

Subscriptions

Forecast Tutorials

Observations

Incidents

Submit Observations

Subscriptions

Remote Weather Stations

National Weather Service

Model Forecasts

Local Resources

The SAC Daily Flow

Forecast Tutorials

Other Resources

Avalanche visible from Andesite Ridge

Conditions Alerts:

Tabs

Sponsors:

Forecast Links

Subscriptions

Forecast Tutorials

Observations

Incidents

Submit Observations

Subscriptions

Remote Weather Stations

National Weather Service

Model Forecasts

Local Resources

The SAC Daily Flow

Forecast Tutorials

Other Resources

Avalanche visible from Andesite Ridge

Conditions Alerts:

Tabs

Search form

Follow Us

Sponsors: