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
02/01/2022 - 12:00
Snowpack Observation 		Becker Ridge
Echo Summit Area 		A couple inches of faceted surface snow on wind protected north aspects on top of a thin firm rain crust. Open wind protected northerly aspects with soft surface snow. Tree branches, pine needles, and burnt tree parts along the snow surface. Forecaster
04/23/2023 - 19:15
Snowpack Observation 		Allison Ridge - Rose Knob Peak
Mount Rose Area 		Cracking and recent collapses of the cornice Public
02/03/2020 - 12:45
Snowpack Observation 		Incline Lake Peak
Mount Rose Area 		Blowing snow on relay peak Wind effect around 3 hour skin track Public
01/30/2021 - 10:00
Avalanche Observation 		Castle/Basin
Donner Summit Area 		Wide propagating avalanche, mostly filled in. Close up of filled in crown below Castle Summit. Another wide propagating crown between Castle and Basin. Mid slope crowns, appearing connected. Settlement cracks around trees. Wind affect on SW face of Castle, giving it the surreal appearance of a crevassed glacier. Forecaster
02/12/2019 - 12:30
Avalanche Observation 		The burn in Meyers
Echo Summit Area 		Public
02/05/2022 - 23:43
Snowpack Observation 		Rose Knob
Mount Rose Area 		N-facing Cornice collapse Big cracks/calving of cornice (different spot than first photo) Significant penitentes on south facing slopes above treeline Melting out to bare dirt in some spots (SE facing slope near Rose Knob Peak) Public
05/07/2023 - 13:00
Avalanche Observation 		Crescent Moon Chute
Carson Pass Area 		Public
02/09/2020 - 12:15
Snowpack Observation 		Twin Lake
Carson Pass Area 		Public
01/31/2021 - 11:45
Avalanche Observation 		Tragedy springs
Carson Pass Area

Avi

Avi
Public
02/16/2019 - 12:00
Snowpack Observation 		Powderhouse
Luther Pass Area (including Job and Freel) 		Public
02/11/2022 - 12:00
Snowpack Observation 		Stevens Peak
Carson Pass Area 		Percolation tubs indicating water draining vertically through the snowpack. Uneven snow surfaces caused by differential melting. Small pinwheel triggered by a ski cut on a sunny SSE facing slope Variable snow surfaces Shady aspects still hold good snow coverage while snow is melting quickly on the sunny aspects. Forecaster
02/14/2020 - 12:00
Snowpack Observation 		Silver Peak
Cabin Creek, Deep Creek, or Pole Creek Area 		Thick high level cloud cover over Silver Peak from 9am to 10:30am. Cloud cover rapidly cleared with full sun at 11am. Forecaster
02/03/2021 - 11:00
Avalanche Observation 		Lincoln Ridge
Yuba Pass Area 		Intentional cornice collapse triggering stubborn wind slab. Ongoing drifting/blowing snow Testpit in wind loaded terrain with ECTP-12 on wind slab. New settlement of storm snow. Forecaster
12/27/2022 - 15:00
Avalanche Observation 		Tamarack Peak
Mount Rose Area 		Forecaster
02/18/2019 - 14:00
Snowpack Observation 		Herlan / Bear Scratch
East Shore Area 		heavy wind, sastrugi, wind loading near summit pockets of wind loading, sastrugi, wind slabs Public

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