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
03/11/2023 - 14:00

Avalanche Observation
Andesite Ridge

Donner Summit Area
Educator

Alpenglow Expeditio
02/09/2022 - 13:15

Snowpack Observation
Bear Valley

Little Truckee Summit Areas
Blowing snow on the Grills Near Surface facets on a NW aspect @ 7800' Affects of prolonged sun and warming on a southerly aspect @ 8000' Weak upper snowpack structure on a NW aspect @ 7800' another shot of near surface facets Educator

West Wind Collecti
02/04/2018 - 14:00

Snowpack Observation
SW Face of Basin Peak

Donner Summit Area
Educator

Tahoe Mountain Scho
01/07/2019 - 14:00

Snowpack Observation
Andesite Ridge

Donner Summit Area
Educator

Donner Summit Avalanche Semina
12/29/2020 - 12:15

Snowpack Observation
Stanford Rock

Blackwood Canyon or Ward Canyon Area
Surface hoar in open sheltered terrain (all elevations) PST 80/100 (End) @ 70cm Hand hardness + layers of concern Educator

Tahoe Mountain Scho
12/15/2018 - 14:15

Snowpack Observation
Johnson Canyon

Donner Summit Area
Educator

Tahoe Mountain Scho
03/13/2017 - 10:10

Snowpack Observation
Andesite Peak

Donner Summit Area
Educator

Donner Summit Avalanche Semina
01/02/2021 - 14:00

Snowpack Observation
Castle Valley

Donner Summit Area
Low clouds over Castle Valley Educator

Alpenglow Expeditio
12/20/2018 - 09:45

Snowpack Observation
E side Rose Knob Peak

Mount Rose Area
Educator

Donner Summit Avalanche Semina
12/31/2017 - 13:14

Snowpack Observation
Castle Pass

Donner Summit Area
Educator

Tahoe Mountain Scho
02/10/2016 - 11:01

Snowpack Observation
Top Negro Canyon; W of Donner Ridge

Donner Summit Area
Educator

Donner Summit Avalanche Semina
12/24/2019 - 12:00

Avalanche Observation
Red Lake Peak

Carson Pass Area
Blowing snow Wind loading Loose Dry Educator

Lake Tahoe Community College - Wilderness Educati
02/18/2016 - 08:45

Snowpack Observation
W end Boreal Ridge above Central Sierra Snow Lab

Donner Summit Area
, Educator

Donner Summit Avalanche Semina
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
03/25/2020 - 10:15

Snowpack Observation
Powderhouse

Luther Pass Area (including Job and Freel)
Looking down from pit area Hand hardness x2 CTM(15) SP at 95cm down Educator

Lake Tahoe Community College - Wilderness Educati

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