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
03/23/2018 - 03:30
Avalanche Observation 		"Broken Glass" Tammarack Peak area
Mount Rose Area 		Public
12/09/2019 - 12:00
Avalanche Observation 		Castle/Basin Peak
Donner Summit Area 		Human triggered avalanche. 200' wide. 12/9 photo The failure layer appears to be buried surface hoar. 12/9 photo SAC Forecaster standing at burial location. 2 main debris paths. 12/10 photo 200' wide, 1-2' deep, failing on a covex rollover. 12/10 photo Mid slope crown. 12/10 photo Looking downslope at the terrain. Debris visible below. 12/10 photo Large shooting cracks out into less steep terrain. 12/10 photo Hole from full burial excavation. 12/10 photo Forecaster
11/13/2021 - 09:00
Snowpack Observation 		Elephant's Back
Carson Pass Area 		Sunshine and rockfall Thin coverage on the approach Public
02/08/2019 - 11:00
Avalanche Observation 		Mt. Judah
Donner Summit Area 		Public
03/03/2021 - 11:00
Snowpack Observation 		Mt. Judah
Donner Summit Area 		The two rain crusts near the surface of the snowpack with weaker snow around them. 2-3 inches of wet snow on top of a mostly supportable melt-freeze crust on south facing slopes. Cloud cover to the S along the Sierra Crest. Forecaster
12/15/2019 - 11:30
Snowpack Observation 		Picketts Peak
Woodfords Canyon 		Public
02/24/2018 - 12:39
Snowpack Observation 		Thumb rock
Donner Summit Area 		Public
03/20/2020 - 09:45
Avalanche Observation 		"Cole Bowl" -- East of Forestdale Divide, North by Northwest of the Nipple
Carson Pass Area 		Public
01/16/2011 - 13:00
Avalanche Observation 		"Ralstonia"
Echo Summit Area 		Public
01/25/2020 - 13:45
Avalanche Observation 		.4 Miles SE of Mt. Houghton
Mount Rose Area 		WL-AS(?)-R1-D1 from a distance WL-AS(?)-R1-D1 from below Pinwheel with 125cm pole for reference Public
02/02/2019 - 02:30
Avalanche Observation 		.5 km west of the grill/Tom’s meadow
Independence Lake Area 		Public
12/19/2016 - 13:00
Snowpack Observation 		1 km W of Castle Peak
Donner Summit Area 		Educator
Donner Summit Avalanche Semina
12/25/2018 - 11:30
Snowpack Observation 		1.2 miles west of white rock lake
Independence Lake Area 		Public
02/27/2010 - 16:56
Avalanche Observation 		1/2 mile from Red Lake on Forestdale Rd.
Carson Pass Area 		Public
01/25/2020 - 14:30
Snowpack Observation 		1/2 mile NE from Toms meadow
Independence Lake Area 		Public

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