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
01/02/2021 - 14:00
Snowpack Observation 		Castle Valley
Donner Summit Area 		Low clouds over Castle Valley Educator
Alpenglow Expeditio
01/07/2023 - 15:30
Snowpack Observation 		Tahoe Donner, McGlashin Springs
Donner Summit Area 		Educator
Outdoor Adventure Cl
12/21/2019 - 02:00
Snowpack Observation 		judah billboards
Donner Summit Area 		Educator
Alpine Skills International (AS
12/17/2017 - 12:07
Snowpack Observation 		Andesite Ridge
Donner Summit Area 		Surface Conditions mix of sustrugi and melt freeze crusts Educator
Tahoe Mountain Scho
11/07/2022 - 10:44
Snowpack Observation 		Mount Rose Meadows
Mount Rose Area 		Drifts up to 40 cm in the meadows Evidence of wind transporting snow Old snow (0-5cm) below new snow (5-20cm) Educator
Alpenglow Expeditio
02/24/2022 - 14:00
Snowpack Observation 		Andesite
Donner Summit Area 		Snow observation demonstration for A1 students Educator
West Wind Collecti
12/12/2020 - 01:45
Snowpack Observation 		Andesite Peak
Donner Summit Area 		Very Small Wind slab (NE aspect) Educator
Tahoe Mountain Scho
02/08/2018 - 10:00
Snowpack Observation 		South of Grouse Rock
Blackwood Canyon or Ward Canyon Area 		Educator
Donner Summit Avalanche Semina
02/08/2023 - 10:30
Snowpack Observation 		Deer Park
Five Lakes Area 		Educator
Alpenglow Expeditio
12/31/2017 - 13:14
Snowpack Observation 		Castle Pass
Donner Summit Area 		Educator
Tahoe Mountain Scho
12/30/2021 - 12:45
Snowpack Observation 		Andesite Peak
Donner Summit Area 		Small cornice on Andesite Ridge Cornice formation on Andesite Peak Educator
Tahoe Mountain Scho
12/14/2021 - 11:15
Snowpack Observation 		Johnson Canyon
Donner Summit Area 		Educator
West Wind Collecti
01/06/2019 - 12:30
Snowpack Observation 		Tamarack Peak
Mount Rose Area 		One of many easily triggered windslabs today Shooting cracks were common today Educator
Tahoe Mountain Scho
01/24/2016 - 14:45
Avalanche Observation 		Andesite Peak
Donner Summit Area 		Test slope failure on Andesite Peak Educator
Tahoe Mountain Scho
12/31/2020 - 13:00
Snowpack Observation 		Poulsen's Peak
Cabin Creek, Deep Creek, or Pole Creek Area 		minor N wind effect near Poulsen's Peak Educator
Alpenglow Expeditio

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