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
12/20/2020 - 13:00

Snowpack Observation
Deep Creek

Cabin Creek, Deep Creek, or Pole Creek Area
Educator

Alpenglow Expeditio
12/05/2019 - 13:30

Snowpack Observation
Powderhouse Peak

Luther Pass Area (including Job and Freel)
Educator

Lake Tahoe Community College - Wilderness Educati
01/24/2021 - 09:00

Snowpack Observation
Andesite

Donner Summit Area
1 cm + surface hoar found widespread in open meadows at Andesite 01/24 Educator

International Alpine Guid
01/07/2021 - 11:30

Snowpack Observation
South of Red Lake

Carson Pass Area
Fist- snow in the Dec 11 layer, about 44cm down Large facets in the Dec 11 layer 44cm down to about 3cm above the ground Educator

Lake Tahoe Community College - Wilderness Educati
01/06/2018 - 12:30

Snowpack Observation
Andesite Ridge

Donner Summit Area
Breakable Crust on Andesite RidgeCastle Peak with lift clouds around 12 30 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
02/20/2016 - 14:30

Snowpack Observation
Negro Canyon

Donner Summit Area
Educator

Tahoe Mountain Scho
03/24/2019 - 08:00

Snowpack Observation
Castle Pass

Donner Summit Area
Surface Hoar near Castle Pass Looking down to the south from the shoulder of Castle Peak. Educator

Lake Tahoe Community College - Wilderness Educati
01/14/2023 - 02:29

Snowpack Observation
Castle Peak

Donner Summit Area
Educator

Tahoe Mountain Scho
01/23/2022 - 12:11

Snowpack Observation
Castle Peak

Donner Summit Area
Raised track and wind effect on the north face of Castle Sun softened snow on a South aspect @ 2pm Soft, surface faceted snow in sheltered terrain. 2-3mm surface hoar in a start zone above steep terrain Educator

West Wind Collecti
02/23/2019 - 15:30

Snowpack Observation
Becker Peak

Echo Summit Area
Buried graupel on Feb 14 rain crust Buried graupel Educator

Lake Tahoe Community College - Wilderness Educati
12/19/2021 - 13:15

Snowpack Observation
Relay Ridge

Mount Rose Area
Test slope producing small windslabs Wind texture and drifting snow along the ridge Dec 9 facets rounding Educator

West Wind Collecti
01/08/2016 - 07:00

Snowpack Observation
W end Boreal Ridge above Central Sierra Snow Lab

Donner Summit Area
Educator

Donner Summit Avalanche Semina
12/19/2016 - 13:00

Snowpack Observation
1 km W of Castle Peak

Donner Summit Area
Educator

Donner Summit Avalanche Semina
02/09/2016 - 11:00

Snowpack Observation
W ridge Castle Pk

Donner Summit Area
Educator

Donner Summit Avalanche Semina

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