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
12/14/2020 - 10:00
Snowpack Observation 		Tamarack Peak
Mount Rose Area 		Public
12/14/2020 - 09:00
Snowpack Observation 		Grouse Rock
Blackwood Canyon or Ward Canyon Area 		Educator
Blackbird Mountain Guid
12/14/2020 - 06:30
Snowpack Observation 		Grouse Rock
Blackwood Canyon or Ward Canyon Area 		Public
12/14/2020 - 02:00
Avalanche Observation 		Silver Peak
Cabin Creek, Deep Creek, or Pole Creek Area 		Cornice collapse and wind slab avalanche Debris and bed surface covered by additional storm snow and wind blown snow Forecaster
12/13/2020 - 15:30
Snowpack Observation 		Chickadee Ridge
Mount Rose Area 		small shooting crack Public
12/13/2020 - 14:15
Snowpack Observation 		Silver Peak
Cabin Creek, Deep Creek, or Pole Creek Area 		Public
12/13/2020 - 13:30
Snowpack Observation 		Andesite Peak
Donner Summit Area 		Public
12/13/2020 - 13:00
Avalanche Observation 		Lincoln Ridge
Yuba Pass Area 		Small ski-kick-triggered wind slab avalanches on a wind loaded test slope The wind slab was about 8 to 12 inches thick Shooting cracks in wind loaded terrain 1f wind slab on top of a thin crust on top of 4f- old near surface facets Wind scoured areas along the ridge line Forecaster
12/13/2020 - 12:30
Snowpack Observation 		Castle Peak
Donner Summit Area 		Cracking along N side of Castle west ridge, ~8300' Educator
Alpenglow Expeditio
12/13/2020 - 11:00
Snowpack Observation 		Ridge of Tamarack above Tamarack Lake
Mount Rose Area 		Public
12/12/2020 - 15:00
Snowpack Observation 		Andesite Peak
Donner Summit Area 		Educator
Alpenglow Expeditio
12/12/2020 - 14:30
Snowpack Observation 		Frog Lake Cliffs
Carson Pass Area 		About 10 cms (~4 inches) of new snow on top of weak facets. Best attempt at capturing weak facets Skier trigger small wind slab. Ski kicks on convex rolls produced small wind slabs Looking up from debris at ski kick triggered wind slab Professional Observer
12/12/2020 - 12:45
Snowpack Observation 		Tamarack Peak
Mount Rose Area 		Reverse tracks on N aspect Cracking and small slabs in top 2” of snow Wind transport onto S aspect Public
12/12/2020 - 11:00
Snowpack Observation 		Grouse Rocks
Blackwood Canyon or Ward Canyon Area 		1 cm thick rain crust at bottom of new snow from freezing rain event. Thin rain crust was supportable but easy to intentionally break through. Freezing rain deposited on trees. Freezing rain deposited on rocks, trees, and evenly across the old snow surface. Forecaster
12/12/2020 - 01:45
Snowpack Observation 		Andesite Peak
Donner Summit Area 		Very Small Wind slab (NE aspect) Educator
Tahoe Mountain Scho

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