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
02/27/2018 - 12:00
Snowpack Observation 		North trees of Granite
Cabin Creek, Deep Creek, or Pole Creek Area 		Surface hoar, NW aspect, 8300' Surface hoar, NW aspect, 8300' Guide
Alpenglow Expeditio
02/27/2018 - 10:00
Snowpack Observation 		South side of Grouse Rock
Blackwood Canyon or Ward Canyon Area 		Blowing snow just above treeline loading onto a W aspect. Skier triggered cracking of wind slab formed on Feb 26 (Monday) at treeline on a NE aspect. Skin track refill after ~1 hour. This was of interest due to the well below treeline location on a NE aspect. Forecaster
02/27/2018 - 09:30
Avalanche Observation 		South side of Castle
Donner Summit Area 		Uphill side of avalanche Lower section and skier Shooting crack in trees Guide
Alpenglow Expeditio
02/26/2018 - 17:00
Snowpack Observation 		Relay Peak
Mount Rose Area 		Facets down 55cm Public
02/26/2018 - 12:30
Snowpack Observation 		Andesite Peak
Donner Summit Area 		Cracking along ridge line Steep below tree line test slope displayed minimal cohesion in response to kicking. Guide
Tahoe Mountain Scho
02/26/2018 - 12:00
Avalanche Observation 		East Ridge Tamarack Peak
Mount Rose Area 		Skier triggered small wind slab from cornice kick. Easy to trigger but limited propagation. Shooting cracks and slab release in wind loaded terrain off of ridgeline. Small natural wind slab avalanche, N aspect, 9300', 40 degree slope. Forecaster
02/26/2018 - 11:00
Avalanche Observation 		Grouse Rock
Blackwood Canyon or Ward Canyon Area 		Forecaster
02/26/2018 - 11:00
Avalanche Observation 		lower Andesite
Donner Summit Area 		Avalanche crown and start zone Looking down on the slide. Skiers left flank is out of frame. Professional Observer
02/26/2018 - 11:00
Snowpack Observation 		Frog Lake Ridge
Carson Pass Area 		Professional Observer
02/26/2018 - 09:00
Avalanche Observation 		Donner Pass/Andesite Pk
Donner Summit Area 		Guide
Donner Summit Avalanche Semina
02/25/2018 - 14:00
Snowpack Observation 		Meiss
Carson Pass Area 		Professional Observer
02/25/2018 - 12:45
Snowpack Observation 		Castle Ridge
Donner Summit Area 		South face of Basin Peak Pit location Guide
Tahoe Mountain Scho
02/25/2018 - 12:30
Snowpack Observation 		Castle Ridge
Donner Summit Area 		Near ridge line on NW aspect. Cohesive snow around a tree well. Professional Observer
02/25/2018 - 11:00
Snowpack Observation 		East Ridge Relay Peak
Mount Rose Area 		Near surface facets buried under recent storm snow at pit location. N aspect, 9600', NTL terrain. Wind textured snow surface at 9600', N aspect, just off ridgeline. E aspect wind effected snow at 9600'. Forecaster
02/25/2018 - 08:30
Snowpack Observation 		Water house Peak
Luther Pass Area (including Job and Freel) 		Public

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