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
12/07/2017 - 12:30
Snowpack Observation 		Incline Lake Pk
Mount Rose Area 		Forecaster
12/06/2017 - 14:30
Snowpack Observation 		Andesite Peak
Donner Summit Area 		Heavily wind scoured E aspect near summit. No snow remaining for future NE wind transport.2mECTP result along top of old nsf layer. Forecaster
12/06/2017 - 12:31
Snowpack Observation 		Avi Gully "Munchkins"
Blackwood Canyon or Ward Canyon Area 		Public
12/06/2017 - 10:00
Avalanche Observation 		Frog Lake Ridge
Carson Pass Area
Professional Observer
12/05/2017 - 13:00
Snowpack Observation 		Chickadee Ridge
Mount Rose Area 		E wind scouring on N aspect, near treeline, ~9,100'.More E wind scouring on N aspect, near treeline, ~9,100'.Snow still available for wind transport on N aspect ~9,200'. Forecaster
12/05/2017 - 12:00
Snowpack Observation 		Castle Peak and Basin Peak
Donner Summit Area 		Scoured surfaces on a N aspect near 8800 ft. on Basin PeakSofter unconsolidated snow on a below treeline N aspect sheltered from the NE winds @ 8200 ft. above Devils Oven Lake. Forecaster
12/04/2017 - 11:30
Snowpack Observation 		Rubicon Peak
West Shore Area 		Surface Hoar was observed on the snow surface at all elevations.Skier triggered cracking on a NE facing wind-loaded test slope at 8800 ft.Skier triggered cracking on a NE facing wind-loaded test slope at 8800 ft. that was previously undercut.Snow coverage at 7400 ft.Snow coverage at 8300 ft. Forecaster
12/03/2017 - 14:00
Snowpack Observation 		Disney/Crows Peak Saddle
Donner Summit Area 		approach track Public
12/03/2017 - 13:00
Snowpack Observation 		Castle Peak
Donner Summit Area 		Forecaster
12/03/2017 - 12:00
Snowpack Observation 		Meiss
Carson Pass Area 		Professional Observer
12/03/2017 - 12:00
Snowpack Observation 		Andesite Ridge
Donner Summit Area 		CTE Failure 15-20cm down in the snow packShooting Cracks up to 25 feet in length Educator
Tahoe Mountain Scho
12/03/2017 - 12:00
Snowpack Observation 		Elephants Back
Carson Pass Area 		Public
12/03/2017 - 12:00
Snowpack Observation 		Tamarack Peak
Mount Rose Area 		9300' N aspect. Showing new snow on top of old NSF's on top of 11/26 RC.Ski kicks on steep corniced slopes had no wind slab propagation.Small instability within new storm snow, graupel layer. Forecaster
12/02/2017 - 13:00
Snowpack Observation 		Andesite Ridge
Donner Summit Area 		Educator
Tahoe Mountain Scho
12/02/2017 - 12:00
Snowpack Observation 		Mt. Lola
Independence Lake Area 		Large SH existed in lower meadow but not on open slope above. 8000', NE-E aspects.Evidence of wind destroyed SH on this open slope. 8200', N aspect. Forecaster

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