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
02/12/2017 - 12:30
Avalanche Observation 		Due south of Rose Knob Peak
Mount Rose Area
Aftermath of Avalanche near Rose Knob Peak.
Avalanche Path in Yellow.
Public
02/12/2017 - 12:00
Snowpack Observation 		Blue Lakes
Carson Pass Area 		Professional Observer
02/12/2017 - 11:45
Snowpack Observation 		Tram Ridge / Shirley canyon
Cabin Creek, Deep Creek, or Pole Creek Area 		Guide
Alpenglow Expeditio
02/12/2017 - 11:30
Avalanche Observation 		Main bowl of Rose Knob Peak
East Shore Area 		Public
02/11/2017 - 15:15
Snowpack Observation 		West of Relay Ridge
Mount Rose Area 		Shooting crack 15 feet longDebris from wind loaded test slope that failed40 cm crown from wind loaded test slope Public
02/11/2017 - 15:00
Snowpack Observation 		Gold Peak
Cabin Creek, Deep Creek, or Pole Creek Area 		Guide
Alpenglow Expeditio
02/11/2017 - 14:30
Snowpack Observation 		Schallenberger Ridge
Donner Summit Area 		Guide
Tahoe Mountain Scho
02/11/2017 - 13:30
Snowpack Observation 		Andesite Peak
Donner Summit Area 		Near treeline terrain at 7900'. Extensive wind loading and transport.Small test slopes on wind loaded S-SW aspects did not show any cracking. Guide
Tahoe Mountain Scho
02/11/2017 - 13:00
Snowpack Observation 		Powderhouse Ridge
Luther Pass Area (including Job and Freel) 		Settlement cones were visible around many trees.Roughly 70 cms of new snow was present at 9000 on Powderhouse sitting on top of a firm but still wet layer.Snow was cracking and behaving cohesively on wind exposed ridges. Broken chunks of cornice did not trigger the slopes below. Professional Observer
02/11/2017 - 13:00
Snowpack Observation 		Incline Lake Peak
Mount Rose Area 		Shooting cracks on a wind-loaded SW aspect. Larger shooting cracks occurred but the wind filled them in too quickly for photos. Settlement cracks around trees in sheltered below treeline terrain. Forecaster
02/11/2017 - 12:20
Avalanche Observation 		Incline Peak
Mount Rose Area
Public
02/11/2017 - 12:00
Snowpack Observation 		Tram Ridge / Shirley canyon
Cabin Creek, Deep Creek, or Pole Creek Area 		Guide
Alpenglow Expeditio
02/11/2017 - 12:00
Snowpack Observation 		Blue Lakes Rd
Carson Pass Area 		Professional Observer
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
02/11/2017 - 10:00
Avalanche Observation 		Incline Lake Peak
Mount Rose Area 		Public

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