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
02/19/2017 - 13:41
Avalanche Observation 		Just off ridge talking mountain
Echo Summit Area 		Public
02/19/2017 - 13:00
Avalanche Observation 		Angora
Echo Summit Area 		Public
02/19/2017 - 12:00
Snowpack Observation 		Tram Ridge / Shirley canyon
Cabin Creek, Deep Creek, or Pole Creek Area 		Heavy snowfall and mini sluff and roller balls Guide
Alpenglow Expeditio
02/19/2017 - 11:30
Snowpack Observation 		Mt. Tallac
Desolation Wilderness Area (including Emerald Bay) 		Wind slab up to 6in on test slope.Tiny wind slab on test slope. Forecaster
02/18/2017 - 14:55
Avalanche Observation 		Stevens Peak Area
Luther Pass Area (including Job and Freel) 		Public
02/18/2017 - 14:21
Snowpack Observation 		Andesite Peak
Donner Summit Area 		Public
02/18/2017 - 13:45
Avalanche Observation 		Tram Ridge / Shirley canyon
Cabin Creek, Deep Creek, or Pole Creek Area
Easy hand shear failing on low density snow
Lower density snow below stiff windslab near ridgeline
Small storm slab avalanche
Guide
Alpenglow Expeditio
02/18/2017 - 13:00
Snowpack Observation 		Negro Canyon
Donner Summit Area 		Ski cut triggered loose wet sluff on a NE facing test slope.Small wind slab triggered by dropping a cornice onto a N facing test slope.Ski kick triggered loose wet sluffs on an E facing test slope. Forecaster
02/18/2017 - 13:00
Snowpack Observation 		Mt. Rose
Mount Rose Area 		Wind loading at 10,000' from strong SW winds. Previous wind scouring from SE winds in open terrain from 8000'-9500' on E and NE aspects.Minor roller balls during the early afternoon on solar aspects. Forecaster
02/18/2017 - 12:30
Snowpack Observation 		Stevens Peak
Carson Pass Area 		mall natural avalanche on east facing cross loaded slope. Professional Observer
02/18/2017 - 12:00
Snowpack Observation 		Elephant's Graveyard
Carson Pass Area 		Professional Observer
02/18/2017 - 11:00
Avalanche Observation 		National Geographic Bowl, Granite Chief Peak
Cabin Creek, Deep Creek, or Pole Creek Area
Cornice drop and resulting wind slab avalanche
Larger storm slab avalanche
Example of shooting crack and crown near flank
 Guide
Alpenglow Expeditio
02/18/2017 - 03:30
Avalanche Observation 		Frog Lake Ridge above Red lake
Carson Pass Area
Crown and bed surface
Skier with debris field.
 Public
02/17/2017 - 15:00
Snowpack Observation 		Fireplug
Mount Rose Area 		ECTN 20 that broke at the base of the wind slab on a NW aspect, indicating that fractures are unlikely to propagate along this layer. Very small cracking on W aspect along the ridgelines. These small wind-loaded features did crack but the wind slabs remained too small to have consequences. Forecaster
02/17/2017 - 12:00
Snowpack Observation 		Talking Mountain
Echo Summit Area 		Loose snow slide beneath skin track on steeper below treeline terrain.Loose snow slide in response to snowboard turn on steeper below treeline terrain. Strong ridgetop winds were blowing snow onto the lee slopes below. Professional Observer

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