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
03/20/2017 - 11:02
Snowpack Observation 		South Gullies
Mount Rose Area 		S aspects above 10k' did not soften due to gale force S winds at 11am. Small skier triggered loose wet activity within gully.Boot pen of 4-6'' at 8200', S aspect, at 11:30am. Forecaster
03/11/2014 - 11:00
Snowpack Observation 		Incline Lake Peak
Mount Rose Area 		Forecaster
10/27/2012 - 12:30
Snowpack Observation 		Rubicon Peak
West Shore Area 		Forecaster
02/12/2021 - 13:30
Avalanche Observation 		Silver Peak
Cabin Creek, Deep Creek, or Pole Creek Area 		1' storm slab avalanche skier triggered in below treeline terrain, north aspect, 7700', slope angle 38 to 40 degree convexity. Just under 1' of high density storm snow Loose dry sluffing in some below treeline areas Blowing snow over Silver Peak in the afternoon hours Forecaster
12/26/2022 - 11:00
Snowpack Observation 		Johnson Canyon
Donner Summit Area 		Melt-freeze crust on an E aspect @ 6800 ft. Wet snow on a sunny SE aspect at 7000 ft. A thin breakable melt freeze crust on a N aspect at 7300 ft. There was still some small but intact surface hoar buried under this crust. Melt freeze crust on a N aspect near 7400 ft. Forecaster
12/06/2012 - 12:15
Snowpack Observation 		Rubicon Peak
West Shore Area 		Forecaster
03/09/2018 - 11:00
Snowpack Observation 		Slab Cliffs
Mount Rose Area 		Forecaster
04/13/2019 - 11:00
Snowpack Observation 		Johnson Canyon
Donner Summit Area 		Fully boot supportable 9 inch thick K hard crust at 6,560' at 9:40 am. Still ski supportable but not boot supportable 9 inch thick 1F hard crust at 7,420' at 10:15 am. Fractures behind cornices, common in this climate. Forecaster
12/03/2017 - 13:00
Snowpack Observation 		Castle Peak
Donner Summit Area 		Forecaster
12/29/2009 - 10:50
Snowpack Observation 		Lincoln Ridge
Yuba Pass Area 		Forecaster
11/04/2011 - 12:13
Snowpack Observation 		Tamarack Peak
Mount Rose Area 		Forecaster
01/09/2011 - 12:00
Snowpack Observation 		Carpenter Peak
Independence Lake Area 		Forecaster
12/07/2020 - 11:30
Snowpack Observation 		Castle Peak
Donner Summit Area 		Southerly aspects showing lots of snow melt and loss. Near surface faceting on W aspects in open below treeline terrain. Forecaster
02/18/2022 - 12:30
Snowpack Observation 		Carpenter Ridge
Independence Lake Area 		Wind scoured areas along the exposed ridges of Carpenter Peak Searching for areas where wind slabs might exist on top of old facets. We did not see any areas with this combination on our search. Shallow recent snow on top of old crusts and facets. Forecaster
04/09/2012 - 11:45
Snowpack Observation 		Silver Peak
Cabin Creek, Deep Creek, or Pole Creek Area 		Forecaster

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