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
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
12/13/2020 - 12:30

Snowpack Observation
Castle Peak

Donner Summit Area
Cracking along N side of Castle west ridge, ~8300' Educator

Alpenglow Expeditio
02/05/2019 - 12:00

Avalanche Observation
Sierra Crest above Bradley Hut

Cabin Creek, Deep Creek, or Pole Creek Area
Educator

Donner Summit Avalanche Semina
02/06/2016 - 13:30

Avalanche Observation
Peak 7483

Donner Summit Area
Educator

Tahoe Mountain Scho
02/02/2018 - 12:15

Snowpack Observation
N. Ridge of Silver Peak

Cabin Creek, Deep Creek, or Pole Creek Area
ECTP 29 SP @68 cm Educator

Tahoe Mountain Scho
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
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
02/02/2021 - 13:30

Snowpack Observation
Powderhouse

Luther Pass Area (including Job and Freel)
Educator

Lake Tahoe Community College - Wilderness Educati
03/16/2019 - 12:15

Snowpack Observation
West face of Johnson canyon

Donner Summit Area
Educator

Alpine Skills International (AS
03/17/2016 - 10:02

Avalanche Observation
above Donner Pass Road

Donner Summit Area
Educator

Donner Summit Avalanche Semina
01/24/2021 - 11:00

Snowpack Observation
Silver Peak

Cabin Creek, Deep Creek, or Pole Creek Area
Small 1mm graupel near the top of Silver Peak Large 7-10mm surface hoar in clearings around 7,000' Educator

Alpenglow Expeditio
01/26/2020 - 06:00

Snowpack Observation
Above Round Lake

Luther Pass Area (including Job and Freel)
Small pit done about 4:00 pm last night before it started raining. Top 5cm of snow wet due to above freezing temperatures. Chowder snow this morning around 9:00AM Educator

Lake Tahoe Community College - Wilderness Educati
03/27/2020 - 10:30

Snowpack Observation
N Aspect of Echo Peak

Echo Summit Area
Surface Hoar on the uptrack Large Surface Hoar on a small tree on the uptrack CTM(20) sudden planar at 59cm down Buried Surface Hoar at 59cm down Buried Surface Hoar at 59cm down Near Surface Facets at 150cm down below 1-finger hard snow Near Surface Facets at 150cm down Educator

Lake Tahoe Community College - Wilderness Educati
03/10/2018 - 15:15

Snowpack Observation
Snowshed Wall

Donner Summit Area
Runnels Heavy snow at times Educator

Tahoe Mountain Scho
12/22/2018 - 15:00

Snowpack Observation
Andesite Peak

Donner Summit Area
Educator

Tahoe Mountain Scho

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