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
01/15/2017 - 14:00
Snowpack Observation 		Castle Peak
Donner Summit Area 		10 to 20mm surface hoar in a meadow at ~7900 ft. 10 to 20mm surface hoar in a meadow at ~7900 ft.Wind scoured E facing slopes along Andesite RidgeExposed ice crusts along the Castle Peak ridgelineSettlement cracks around trees. Inversion layer at about 7400-7800 ft. Forecaster
01/15/2017 - 13:45
Avalanche Observation 		Jobs Peak (Jaws)
Luther Pass Area (including Job and Freel)
Public
01/15/2017 - 13:00
Snowpack Observation 		Andesite Peak
Donner Summit Area 		Guide
Tahoe Mountain Scho
01/15/2017 - 12:00
Snowpack Observation 		Becker Peak
Echo Summit Area 		Professional Observer
01/15/2017 - 09:40
Snowpack Observation 		Little Truckee Summit
Independence Lake Area 		Forecaster
01/14/2017 - 14:00
Snowpack Observation 		Hidden Peak
West Shore Area 		Public
01/14/2017 - 13:00
Snowpack Observation 		Castle Peak Andesite Ridge
Donner Summit Area 		Public
01/14/2017 - 12:00
Snowpack Observation 		Ta,arack Peak
Mount Rose Area 		Surface hoar was widespread in the areaThin rime crust on the snow surface with surface hoar on top of it. Forecaster
01/13/2017 - 16:00
Snowpack Observation 		Frog Lake Ridge
Carson Pass Area 		A very thin crust (likely created by freezing fog/mist) on top of fresh snow.Sastrugi growing into the East wind.Settlement cones were widely observed.A west facing slope exhibiting wind slab development. Professional Observer
01/13/2017 - 12:30
Snowpack Observation 		N Judah
Donner Summit Area 		Public
01/13/2017 - 12:30
Snowpack Observation 		Donner Peak
Donner Summit Area 		Wind slab avalanche skier triggered on test slope. W aspect, 7500', 35 degree slope.40' long shooting cracks in wind loaded terrain.Small wind loaded test slopes showing slab failure. W aspect.Settlement cones around trees. Forecaster
01/13/2017 - 12:00
Snowpack Observation 		Indian Valley
Ebbetts Pass Area 		Professional Observer
01/12/2017 - 14:45
Snowpack Observation 		Powderhouse
Luther Pass Area (including Job and Freel) 		Dry loose slough on steeper slopesCornices and wind loading at ridgeRimming at ridgelineObserving rain crusts near 300cm from topWet saturated snow near crusts near 300cm from top Public
01/12/2017 - 12:30
Snowpack Observation 		Wildflower Ridge
Donner Summit Area 		Fairly large sections of cornice along the ridge.Small loose dry triggered by intentional cornice collapse. Forecaster
01/12/2017 - 12:00
Snowpack Observation 		Deep Creek
Cabin Creek, Deep Creek, or Pole Creek Area 		Loose dry sluff triggered by a small cornice dropped onto the slope.The wind loaded test slope that cracked and failed with a hard ski kick after previously being undercut.Settlement crack around the base of a tree. Forecaster

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