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
02/26/2018 - 11:00
Snowpack Observation 		Frog Lake Ridge
Carson Pass Area 		Professional Observer
02/26/2018 - 11:00
Avalanche Observation 		Grouse Rock
Blackwood Canyon or Ward Canyon Area 		Forecaster
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 - 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 - 17:00
Snowpack Observation 		Relay Peak
Mount Rose Area 		Facets down 55cm Public
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
02/27/2018 - 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 - 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 - 13:15
Avalanche Observation 		Elephants back
Carson Pass Area 		Public
02/27/2018 - 14:15
Snowpack Observation 		Between Castle Pass and Round Valley
Donner Summit Area 		Guide
Tahoe Mountain Scho
02/28/2018 - 09:30
Snowpack Observation 		Powderhouse
Luther Pass Area (including Job and Freel) 		facets at 35cm depth facets below crust at 70cm depth fresh snow, barely cohesive. Surface hoar - present across the mountain Public
02/28/2018 - 10:30
Snowpack Observation 		Tamarack Peak
Mount Rose Area 		Public
02/28/2018 - 10:30
Snowpack Observation 		Incline Lake Peak
Mount Rose Area 		Slab of recent storm snow layered F, 4F, 1F on to top of F+ facets. Forecaster
03/01/2018 - 01:30
Snowpack Observation 		Tamarack Peak
Mount Rose Area 		20'' of heavier storm snow over lighter density snow causing storm slab conditions. Large cracking around skis in BTL terrain with a density change from the heavier storm snow over lighter density old snow. New snow fell as graupel throughout the mid day. Forecaster
03/01/2018 - 11:15
Avalanche Observation 		Andesite Peak
Donner Summit Area 		Small natural storm slab. Small storm slab triggered from below. Wind slab failure on a test slope caused by the natural collapse of a cornice. 1 to 2 foot deep wind slabs failing on the old/new interface on a near treeline wind loaded slope. Triggered from lower angle terrain above the slope. Wind slabs avalanche triggered from the ridge. The avalanche also caused the lower angle slope next to it to shatter but the snow did not slide downhill on the lower angle slope. Shooting crack from lower angle terrain that then becomes a wind slab avalanche in the nearby steeper terrain. Forecaster

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