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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