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
01/12/2020 - 13:00

Snowpack Observation
Mt. Reba

Bear Valley Area
Wind loading north aspect Wind loading north aspect Cornice on north aspect Public
01/12/2020 - 11:00

Snowpack Observation
Incline Lake Peak

Mount Rose Area
Wind scoured snow in below treeline terrain Variety of firm exposed crusts throughout this area due to wind and/or sun. Forecaster
01/12/2020 - 02:00

Snowpack Observation
Talking Mtn

Echo Summit Area
released wind slab over trigger Public
01/11/2020 - 17:00

Avalanche Observation
Wildflower Ridge / Mt. Judah

Donner Summit Area
D2 wind slab avalanche on the E face of Judah Wind slab avalanche on Wildflower Ridge Forecaster
01/11/2020 - 12:30

Snowpack Observation
Wild flower Ridge

Donner Summit Area
Public
01/11/2020 - 12:00

Snowpack Observation
Becker/Talking Cirque

Echo Summit Area
Professional Observer
01/11/2020 - 12:00

Snowpack Observation
Andesite Peak

Donner Summit Area
Skier triggered shooting crack on an ENE facing wind loaded test slope. 10 to 12 in. deep wind slab on a wind loaded test slope. Signs of wind transport in exposed near and above treeline terrain. Forecaster
01/11/2020 - 11:45

Snowpack Observation
Tamarack Pk/Galena Cr

Mount Rose Area
PST with artificial 10 cm load ready to test. Clean propagation. Signs of mixed scouring and drifting. Open areas previously scoured by NE winds. Forecaster
01/10/2020 - 12:45

Snowpack Observation
Stoney Ridge/Meeks Ridge

West Shore Area
Forecaster
01/10/2020 - 11:00

Snowpack Observation
Granite Lake

Desolation Wilderness Area (including Emerald Bay)
About 1cm of new snow with 3 mm graupel mixed in. Professional Observer
01/10/2020 - 07:00

Snowpack Observation
Tamarack Peak

Mount Rose Area
Shooting cracks in obvious wind slab at top of Proletariat Blowing snow and new wind drifts near summit of Tamarack Small cornice formation on SSW aspect of Tamarack summit approach Cracking in small wind slab on SSW aspect of Tamarack summit approach Public
01/09/2020 - 11:30

Avalanche Observation
Castle Peak/Andesite Peak

Donner Summit Area
New wind slabs failing on Jan 4 crust. Small D1 wind slab on E aspect Shooting cracks in wind loaded terrain Small loose dry sluffing. Low level clouds with periods of very light snow. Forecaster
01/08/2020 - 13:00

Snowpack Observation
Mount Judah

Donner Summit Area
Professional Observer
01/08/2020 - 12:45

Avalanche Observation
Silver Peak

Cabin Creek, Deep Creek, or Pole Creek Area
One of 5 intentionally triggered D1 wind slabs in near treeline terrain.
Another of 5 intentionally triggered D1 wind slabs in near treeline terrain.
Forecaster
01/08/2020 - 12:00

Avalanche Observation
Mt. Judah

Donner Summit Area
Guide

Alpenglow Expeditio

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