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
01/04/2017 - 13:00
Avalanche Observation 		Andesite Ridge
Donner Summit Area
Partially covered up avalanche debris.
Natural avalanche on NE-E aspect wrapping around rock feature. 125' wide x 200' long.
Wind slab avalanche with up to 3' crown. Covered in by additional snow.
 Forecaster
04/03/2016 - 12:30
Avalanche Observation 		Fireplug aka The Diamond
Mount Rose Area
Forecaster
01/04/2017 - 15:00
Avalanche Observation 		Andesite Ridge
Donner Summit Area
Partially filled in crown and covered debris
 Forecaster
01/10/2017 - 15:00
Avalanche Observation 		Deep Creek
Cabin Creek, Deep Creek, or Pole Creek Area
Overview of the slide
The climbers left flank
Another overview
Debris and knocked over trees.
Forecaster
01/15/2017 - 13:45
Avalanche Observation 		Jobs Peak (Jaws)
Luther Pass Area (including Job and Freel)
Public
01/21/2017 - 15:30
Avalanche Observation 		Incline Lake Peak
Mount Rose Area
Crown of smaller test slope
Small slide on test slope with 40+ deg slope
Shooting crack near summit that released when triggered with cornice drop
Public
01/25/2017 - 13:02
Avalanche Observation 		Porcupine Ridge
East Shore Area
Public
04/22/2010 - 11:00
Avalanche Observation 		Proletariat
Mount Rose Area
Forecaster
02/05/2017 - 09:00
Avalanche Observation 		Jakes Peak
Desolation Wilderness Area (including Emerald Bay)
Public
04/07/2010 - 12:00
Avalanche Observation 		Jake's Peak
West Shore Area
Forecaster
11/23/2010 - 13:53
Avalanche Observation 		Wildflower Ridge
Donner Summit Area
Forecaster
02/11/2017 - 11:00
Avalanche Observation 		Davis Creek Main Stem
Mount Rose Area
The starting zone is behind skier and along side loaded ridge. Crown was covered by later wind loading
As the original slab loaded steep sided ravine below it morphed into a wet slide that scoured down to old snow bed surface
After dropping approximately 500 feet vert the wet slide scoured deeper leaving luge runs made of clear rink ice
After running a 1000+ vert feet some debris was left behind in the less steep areas
The person in this photo gives the reader an idea of the immensity and power of this slide
At a curve in the ravine the slide cut down to bare ground on the outside of the turn
The deposition at the bottom left 10 foot scoured walls and an acre of debris
Skiers give the slide a little more perspective
 Public
02/17/2011 - 15:00
Avalanche Observation 		Jake's Peak
West Shore Area
Forecaster
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
03/07/2011 - 08:37
Avalanche Observation 		Castle Peak North Bowl
Donner Summit Area
Public

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