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
12/14/2017 - 16:00
Snowpack Observation 		West side Relay Peak
Mount Rose Area 		Public
12/14/2017 - 11:00
Snowpack Observation 		Andesite Peak and S aspect of Castle Pk
Donner Summit Area 		Forecaster
12/13/2017 - 15:27
Avalanche Observation 		Castle Peak
Donner Summit Area
Public
12/13/2017 - 12:00
Snowpack Observation 		Chickadee Ridge
Mount Rose Area 		Inversion conditions allowing cold air and clouds to remain trapped at the lower elevations.1 inch of soft wet corn snow on top of a supportable melt-freeze crust on a S aspect at 8850 ft. around 11:30 am.Near-surface facets from a north aspect at 9000 ft. that are starting to round. Forecaster
12/13/2017 - 11:30
Snowpack Observation 		Andesite Peak
Donner Summit Area 		Pit location adjacent to and above pit from Dec 6. (Skis/pack in old pit.) Forecaster
12/12/2017 - 11:30
Snowpack Observation 		Basin Peak
Donner Summit Area 		thermometer showing +9c Public
12/11/2017 - 13:00
Snowpack Observation 		Castle Peak
Donner Summit Area 		ECTP on a NW test slope with a hard wind slab. See pit for more details.ECTN on the same test slope. See pit for more details.Spring-like snow conditions and patchy snow coverage on SW aspects.Scoured surfaces on exposed northerly aspects. Forecaster
12/11/2017 - 12:00
Snowpack Observation 		East Ridge Tamarack Peak
Mount Rose Area 		Forecaster
12/10/2017 - 12:30
Snowpack Observation 		Becker Ridge
Echo Summit Area 		Snow coverage at 7400 ft. Snow coverage at 7800 ft. on N aspects.Looking up the ridge toward Becker Peak @ 7900 ft. Forecaster
12/10/2017 - 12:10
Snowpack Observation 		Castle Pass
Donner Summit Area 		Educator
Tahoe Mountain Scho
12/10/2017 - 11:35
Avalanche Observation 		Mount Price
Desolation Wilderness Area (including Emerald Bay) 		Public
12/09/2017 - 12:00
Snowpack Observation 		Relay Peak
Mount Rose Area 		E face of Relay Peak, 10,200'. Wind scoured by the recent NE/E winds.NW/W bowls of Relay Peak. Wind scoured in areas and wind loaded in areas with hard slabs.2' of cohesive hard slab P to K hard. F hard facets below. CTM-12 SC on facet layer.ECTPV. 292 degree W/NW slope, 19 degree slope angle. Forecaster
12/09/2017 - 11:00
Snowpack Observation 		Elephants Back
Carson Pass Area 		Public
12/08/2017 - 12:30
Snowpack Observation 		Castle Peak
Donner Summit Area 		View of N side of Castle PeakView towards Basin PeakPrevious cornince collapse/wind slab that probably failed last Sunday during or just after storm event and partially covered. Forecaster
12/08/2017 - 10:00
Snowpack Observation 		Red Lake Peak Ridge
Carson Pass Area 		Thin crust over 5 inches of loose facets which are sitting on pencil hard old snow. Professional Observer

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