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
02/28/2021 - 16:20
Snowpack Observation 		Elephant’s Hump
Carson Pass Area 		Cracks on Elephant’s Hump Wind blown hard crust on Elephant’s Hump Public
04/16/2018 - 11:00
Snowpack Observation 		Andesite Peak
Donner Summit Area 		Small wind slab triggered by large cornice drop on a ENE facing test slope at 8040 ft. See video. Small 1 to 4 inch slab triggered on an E facing test slope @ 8040 ft. that had just received a short period of sun-exposure The other side of the small slab triggered on the E facing test slope. New snow and some wind-loading filling in the skin track @ 8160 ft. About 30 cm (1 ft) of new snow resting on top of a moist crust on top of wet snow in a meadow at 7500 ft. Forecaster
02/06/2023 - 08:00
Avalanche Observation 		Jake’s Peak
West Shore Area 		Public
12/22/2019 - 10:00
Snowpack Observation 		Tahoe Meadows
Mount Rose Area 		Notably icy crust compared to rest of slope on Tamarack. This particularly icy crust was close to an open stream. Fracuture layer at about 5 cm after shovel was used to push on the snow column Some weird wind features near edge of Tahoe meadows, close to where snowpit was made. Public
04/13/2022 - 14:00
Snowpack Observation 		Rubicon
West Shore Area 		Public
12/18/2020 - 11:00
Snowpack Observation 		Powderhouse Peak
Luther Pass Area (including Job and Freel) 		Large grain facets remain under the recent storm snow. 2 small whumpfs felt in lower elevation open treed area. More P-tex needed on the rock skis after today Forecaster
03/07/2021 - 11:00
Snowpack Observation 		Stoney Ridge
West Shore Area 		Small pinwheels and roller balls triggered by a ski cut on an E facing slope at 11 am ECTN on the softer snow between the 2 crusts near the surface Wind affected snow near the ridge Forecaster
11/26/2018 - 12:00
Snowpack Observation 		Tamarack Peak
Mount Rose Area 		True north aspects have the most snow with other aspects showing numerous rocks and bare patches. Looking down the Hourglass from the top of Tamarack Peak. Looking across at Relay Peak. Top of the Proletariat looking down. Forecaster
02/09/2023 - 11:30
Snowpack Observation 		Yuba Pass
Yuba Pass Area 		Jan 29 buried surface hoar layer. Unreactive at this location. Jan 29 buried SH layer. 1 to 2.5cm in size. Location of ECT's Forecaster
12/26/2019 - 12:00
Snowpack Observation 		Little Round Top
Carson Pass Area 		Snow transport over the saddle point between the ridges. The wind direction is ENE Small cracks in the snowpack near tree line. At this elevation the cracks are only between skis Wind erosion pattern near treeline. Wind direction is E Larger cracks in the newly forming slab above the treeline. The slab is anout 2-3 inch thick. Cracks did not propagate further than 2-3 feet Windblown structure at the pin drop location. The structures are facing east. Wind channel formed around the rock below the treeline. The channel is south of the rock Public
04/19/2022 - 11:30
Snowpack Observation 		Andesite Peak
Donner Summit Area 		Wind slab failure triggered by a ski kick on an E-ENE facing test slope. Skier triggered wind-slab failure on a wind-loaded test slope. Skier triggered shooting cracks on a wind-loaded test slope. About 6 inches of new snow on top of a thin melt freeze crust with a deep layer of wet snow below it. Minor cracking around my skis in sheltered terrain. Forecaster
11/30/2018 - 13:30
Snowpack Observation 		Grouse
Blackwood Canyon or Ward Canyon Area 		Public
02/10/2023 - 03:30
Snowpack Observation 		Blue lakes
Carson Pass Area 		Public
12/28/2019 - 09:00
Snowpack Observation 		Wildflower Ridge
Donner Summit Area 		Public
04/22/2022 - 12:30
Snowpack Observation 		Castle Peak
Donner Summit Area 		Crown line profile showing no results on wind slab avalanche activity from yesterday. Many cornice kicks and ski cuts produced some entrainment of new snow, but no propagation. Crown line profile showing no ECTN results on storm slab instability from yesterday. About 1' of new snow covering up crown and bed surface. Natural wind slab avalanche on the North side of Castle Peak that occurred yesteday. Some minor roller balls developing through the day off of rocks on Donner Summit. Forecaster

Pages