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
03/04/2022 - 13:30
Snowpack Observation 		Powderhouse
Luther Pass Area (including Job and Freel) 		Weak layer below very thin crust 20cm down. CTM(13) SP 20cm down. Educator
Lake Tahoe Community College - Wilderness Educati
01/08/2023 - 14:00
Avalanche Observation 		Andesite Peak
Donner Summit Area 		Small natural storm slab avalanche in btl terrain. Crown partially covered by additional storm snow. Avalanche debris down into trees-covered up by additional storm snow. ECTP-14 on storm slab instability. Skin track refill. Educator
Tahoe Mountain Scho
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
02/07/2019 - 15:30
Avalanche Observation 		Echo Peak
Echo Summit Area 		6" crown, 30' wide, 50-70' run Runout Educator
Lake Tahoe Community College - Wilderness Educati
01/05/2022 - 22:31
Snowpack Observation 		Castle/Andesite Peak
Donner Summit Area 		Educator
Alpenglow Expeditio
12/23/2020 - 12:30
Snowpack Observation 		Silver Peak
Cabin Creek, Deep Creek, or Pole Creek Area 		Cracking on windslabs when we undercut the slope Enjoying a ridgetop transition with calm winds Shooting cracks on stiff windslabs Educator
Alpenglow Expeditio
12/10/2020 - 09:45
Snowpack Observation 		Grouse Rock
Blackwood Canyon or Ward Canyon 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
01/08/2019 - 15:00
Avalanche Observation 		Shirley Canyon
Cabin Creek, Deep Creek, or Pole Creek Area 		Educator
Alpenglow Expeditio
02/19/2016 - 14:30
Snowpack Observation 		Grass Lake
Luther Pass Area (including Job and Freel) 		Educator
Lake Tahoe Community College - Wilderness Educati
02/11/2018 - 11:45
Snowpack Observation 		Castle Valley
Donner Summit Area 		Educator
Tahoe Mountain Scho
02/23/2022 - 11:00
Snowpack Observation 		Powderhouse
Luther Pass Area (including Job and Freel) 		Educator
Lake Tahoe Community College - Wilderness Educati
01/21/2018 - 16:07
Snowpack Observation 		Andesite Peak
Donner Summit Area 		Educator
Tahoe Mountain Scho
12/31/2017 - 13:14
Snowpack Observation 		Castle Pass
Donner Summit Area 		Educator
Tahoe Mountain Scho
01/17/2020 - 14:45
Snowpack Observation 		Johnson Canyon
Donner Summit Area 		Educator
Tahoe Mountain Scho

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