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
01/22/2022 - 12:30

Snowpack Observation
Castle Peak

Donner Summit Area
40cm of snowpack settlement Students ski tips in some soft surface faceted snow Well developed surface hoar Educator

West Wind Collecti
02/24/2019 - 12:45

Snowpack Observation
Castle Pass / Andesite peak

Donner Summit Area
kick test on SE aspect off castle pass Educator

Tahoe Mountain Scho
02/20/2016 - 14:30

Snowpack Observation
Negro Canyon

Donner Summit Area
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
04/11/2021 - 12:00

Snowpack Observation
Castle Peak

Donner Summit Area
Thin snow coverage on S side of Castle Peak 2'' of soft snow on top of a 6'' M/F crust at 8600', S aspect just before noon. Educator

Tahoe Mountain Scho
01/09/2021 - 12:00

Snowpack Observation
Wildflower Ridge/Judah

Donner Summit Area
Educator

Alpenglow Expeditio
03/07/2023 - 09:45

Snowpack Observation
Silver Peak

Cabin Creek, Deep Creek, or Pole Creek Area
Scattered clouds, blowing snow, tree bombs Graupel on snow surface Snow profile from E aspect at 6600' Educator

NORTH AMERICAN SKI TRAINING AND CLIMBI
01/17/2021 - 11:30

Snowpack Observation
Mount Judah

Donner Summit Area
Educator

Alpenglow Expeditio
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
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
11/29/2019 - 09:30

Snowpack Observation
Frog Lake

Carson Pass Area
View towards Elephants Back 55cm of light fist hard snow 10cm of facets at the bottom of the snowpack Closeup of the facets Educator

Lake Tahoe Community College - Wilderness Educati
02/19/2016 - 08:25

Snowpack Observation
Crystal Bay (Stateline ridge), NV

Mount Rose Area
, Educator

Donner Summit Avalanche Semina
12/15/2018 - 14:15

Snowpack Observation
Johnson Canyon

Donner Summit Area
Educator

Tahoe Mountain Scho
12/19/2016 - 13:00

Snowpack Observation
1 km W of Castle Peak

Donner Summit Area
Educator

Donner Summit Avalanche Semina
12/19/2020 - 13:15

Snowpack Observation
Andesite peak

Donner Summit Area
Dec 11 Facets, some appeared to start rounding at this location Students showcasing the current drastic difference between boot and ski pen Educator

Tahoe Mountain Scho

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