These observations document past conditions at a small and variable scale. They are not too 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 Region Observation Type Photos Snowpack, Avalanche, Weather Videos Snowpit videos (tests, etc) Observation made by
02/12/2021 - 10:30 Donner Pass area Donner Summit Area Avalanche Observation Public
02/12/2021 - 10:00 Tallac, north bowl, 8.5k Desolation Wilderness Area (including Emerald Bay) Avalanche Observation lots of naturals observed on our way up - assumed during the storm lots of naturals observed - assumed during the storm lots of naturals observed - assumed during the storm Assumed human triggered avy Assumed human triggered avy Public
02/12/2021 - 09:45 Flagpole peak Echo Summit Area Avalanche Observation Public
02/12/2021 - 08:45 Incline Peak Mount Rose Area Avalanche Observation Public
02/12/2021 - 08:30 Castle Peak Donner Summit Area Snowpack Observation 14 inch crown on a storm slab failure. Small but steep test slope. Public
02/12/2021 - 08:00 Mt Rose Shoulder Sub Peak 10,005 Mount Rose Area Avalanche Observation Looking down onto small wind slab avalanche Looking up at Crown of avalanche Public
02/12/2021 - 07:30 Small chute in Tamarack zone - "Dick's Crack" Mount Rose Area Avalanche Observation

2.12.2020 Slide

Public
02/12/2021 - 07:00 Frog Lake Cliffs Donner Summit Area Avalanche Observation Public
02/12/2021 - 01:00 Rubicon Peak West Shore Area Avalanche Observation Public
02/11/2021 - 14:30 Blue lakes Carson Pass Area Snowpack Observation Public
02/11/2021 - 12:15 Castle Pass Donner Summit Area Snowpack Observation Guide
Alpenglow Expeditions
02/11/2021 - 11:00 Mt. Judah Donner Summit Area Snowpack Observation Mid morning high cloud cover with partly sunny skies Less supportable snow below 7600' on south aspects at 10:45am. Looking West from the top of Judah at 11:30am Soft surface crusts Forecaster
02/10/2021 - 01:15 Tragedy Springs Bear Valley Area Snowpack Observation Misty low level clouds in the morning. Trace of snow and ice in trees. Pit profile@ 8500'. A look at layers below Jan.22nd rain crust. Facets below the Jan. 22nd crust. Facets below the Dec.11th crust. Professional Observer
02/09/2021 - 19:30 Fulstone Canyon Monument Drainage Luther Pass Area (including Job and Freel) Snowpack Observation Public
02/09/2021 - 11:30 Stoney Ridge West Shore Area Snowpack Observation Low cloud ceiling over Rubicon Peak Low cloud ceiling over Heavenly Trace of new snow on the trees at 8,300'. Forecaster

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