These observations document past conditions at a small and variable scale. They are not to be confused with an avalanche forecast. They come from a variety of sources. We can only vouch for the quality of those produced by the SAC forecasters and professional observers.
Date and time of observation or avalanche occurrence Location Media Observation made by
03/01/2017 - 14:00

Avalanche Observation
above buck lake

West Shore Area
wind loaded slab wind loaded slabs Public
03/19/2016 - 14:30

Snowpack Observation
Above China Wall

Donner Summit Area
Guide

Tahoe Mountain Scho
12/03/2016 - 14:00

Snowpack Observation
above China Wall

Donner Summit Area
Guide

Tahoe Mountain Scho
02/16/2010 - 10:30

Avalanche Observation
Above Cliff Lake

Desolation Wilderness Area (including Emerald Bay)
Forecaster
12/27/2016 - 23:30

Avalanche Observation
Above Crater lake, Red Lake Pk

Carson Pass Area
The snow on bed where failure occured. Public
02/12/2019 - 10:45

Snowpack Observation
above Crystal Bay

Mount Rose Area
Guide

Donner Summit Avalanche Semina
03/19/2011 - 07:45

Snowpack Observation
above Crystal Bay, CA/NV

Mount Rose Area
Public
03/17/2016 - 10:02

Avalanche Observation
above Donner Pass Road

Donner Summit Area
Educator

Donner Summit Avalanche Semina
03/13/2016 - 12:00

Avalanche Observation
Above Fontanillis Lake

Desolation Wilderness Area (including Emerald Bay)
Forecaster
03/26/2020 - 02:45

Avalanche Observation
Above Frog Lake, before entering N. Castle Bowl

Independence Lake Area
Public
02/08/2023 - 07:00

Snowpack Observation
Above heart chute

Donner Summit Area
Public
01/17/2016 - 14:30

Snowpack Observation
Above Highway Chutes

Mount Rose Area
Educator

Sierra Nevada Colle
02/06/2023 - 09:30

Avalanche Observation
Above Lake Louise

West Shore Area
Public
12/15/2020 - 09:15

Snowpack Observation
Above long creek

Yuba Pass Area
EctP7down35 cm. On dec 11 layer December 11 facet layer Snow pit Public
03/20/2021 - 12:15

Avalanche Observation
above Meiss meadow

Carson Pass Area
Overview of incident; crown, chute, entrance slide path, cliff hidden in pic 1, crowns runout, debris Public

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