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
01/24/2020 - 14:00
Snowpack Observation 		Far East Ridge of Tamarack Peak
Mount Rose Area 		Scoured surfaces and raised tracks on an exposed slope. Wind effects on a moderately sheltered slope. Minor cracking on a wind-loaded test slope after it was undercut. Skier triggered collapse of an unsupported drift next to a creek that failed on the Jan 4 weakness. Forecaster
03/10/2010 - 13:42
Snowpack Observation 		Powerhouse Peak
Luther Pass Area (including Job and Freel) 		Forecaster
03/30/2016 - 12:00
Avalanche Observation 		Donner Peak
Donner Summit Area
Forecaster
01/31/2013 - 11:05
Snowpack Observation 		Silver Peak
Cabin Creek, Deep Creek, or Pole Creek Area 		Forecaster
01/14/2011 - 13:48
Snowpack Observation 		King's Realm
Bear Valley Area 		Forecaster
03/07/2016 - 12:30
Snowpack Observation 		Elephants Hump
Carson Pass Area 		Forecaster
12/27/2017 - 11:00
Snowpack Observation 		Silver Peak
Cabin Creek, Deep Creek, or Pole Creek Area 		Skier triggered crack connects between the POV ski and ski partner.High contrast version of same photo to highlight crack.High contrast version of same crack, as viewed from the other end.Facets from the problematic weak layer.More facets from the same problematic weak layer. Forecaster
01/12/2014 - 14:00
Snowpack Observation 		Red Lake Peak
Carson Pass Area 		Forecaster
03/08/2021 - 12:00
Snowpack Observation 		Ophir Peak
Mount Rose Area 		Dense mid level cloud cover Soft unconsolidated snow on northerly aspects Forecaster
02/24/2010 - 09:00
Avalanche Observation 		Donner Peak
Donner Summit Area
Forecaster
03/03/2023 - 11:00
Avalanche Observation 		Schallenberger Ridge
Donner Summit Area 		Looking at the crown on the deep natural avalanche near the top of Schallenberger Ridge. The crown extended into the main bowl. The avalanche wrapped back down from the main bowl into more N facing terrain. Cracks also extended out into lower angle slopes adjacent to the avalanche. Investigating the avalanche crown. Another avalanche was visible on Anderson Peak. Breakable crust on sunny slopes today. Forecaster
12/20/2019 - 11:00
Snowpack Observation 		Mt. Judah
Donner Summit Area 		Drifting snow over Wildflower Ridge cornice. Soft wind slabs lower on the peak. Forecaster
03/09/2017 - 11:00
Snowpack Observation 		Incline Lake and Rose Knob Peak
Mount Rose Area 		Debris from large ski-cut-triggered pinwheels and roller balls.More pinwheels on a smaller slope at about 3 ft. in diameterDivots and runnels created by the recent warming. Forecaster
04/13/2014 - 12:00
Snowpack Observation 		Stevens Peak
Carson Pass Area 		Forecaster
02/15/2023 - 12:00
Snowpack Observation 		Stanford Rock
Blackwood Canyon or Ward Canyon Area 		Blowing snow over the Sierra Crest from strong to gale force NE winds Some cracking in wind loaded terrain when undercut by skin track on 6 to 8'' wind slab. Up to 3'' skin track refill within 1.5 hours. Wind scouring in exposed areas NTL terrain. ECTN on Jan 29 buried SH layer at this location. Forecaster

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