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
01/06/2013 - 12:42
Snowpack Observation 		Castle Peak Bowl
Donner Summit Area 		Public
12/26/2015 - 13:00
Snowpack Observation 		Silver Peak
Cabin Creek, Deep Creek, or Pole Creek Area 		Forecaster
01/27/2017 - 16:00
Snowpack Observation 		3rd drainage north of "Peak 9614", S of Monument Peak
Outside of the Forecast Area 		Variable wind affected & consolidated powder looking S at ridgeDebris field looking back up drainage skied. Public
03/04/2010 - 11:00
Snowpack Observation 		Castle Peak
Donner Summit Area

PST

PST
Professional Observer
12/02/2011 - 14:30
Snowpack Observation 		Fireplug and Hourglass
Mount Rose Area 		Forecaster
12/30/2015 - 13:15
Snowpack Observation 		Looking west from Waterhouse
Luther Pass Area (including Job and Freel) 		Stellars still intact on the surface on the north face of Waterhouse, no signs of surface hoar starting to form.looking across at "Shower chutes" I could see large broken cornice chunks and debris piles across most of ridge line. Starting lookers right in the sun and continuing all the way across lookers left to the peak and continuing down the other-side. No signs of a triggered avalanche from the weight of the cornice on the slope underneath. Probably occurred in the early morning when the sun was on it. Wind effected ridge. Strong west wind loading east aspect.Over hanging cornices forming at the bottom of the picture along the ridge line. Public
02/04/2017 - 14:30
Snowpack Observation 		Silver Peak
Cabin Creek, Deep Creek, or Pole Creek Area 		ECTP 16 28cm below the surface at a density change between a dense heavy wind slab and softer storm snow2m long ECTN 16 on the same layer as the ECTPRain runnels and wet sticky snow existed on slopes below 7000 ft. Settlement cracks around a tree at 7500 ft. on a N aspect Forecaster
11/29/2010 - 10:15
Snowpack Observation 		Incline Lake Peak
Mount Rose Area 		Professional Observer
03/24/2013 - 11:00
Snowpack Observation 		Castle Peak
Donner Summit Area 		Forecaster
01/15/2010 - 13:30
Snowpack Observation 		Waterhouse Peak
Luther Pass Area (including Job and Freel) 		Forecaster
01/04/2016 - 12:00
Snowpack Observation 		Lincoln Ridge
Yuba Pass Area 		Forecaster
01/20/2011 - 12:30
Snowpack Observation 		Donner Pass
Donner Summit Area 		Professional Observer
11/13/2013 - 13:00
Snowpack Observation 		Incline Lake Peak
Mount Rose Area 		Forecaster
02/18/2010 - 13:00
Snowpack Observation 		Castle Peak
Donner Summit Area 		Forecaster
01/07/2016 - 12:00
Snowpack Observation 		Talking Mt.
Echo Summit Area 		Cracking on steeper wind loaded ridge top slopes. Looking up at skier triggered small slab avalanche.Looking downslope at a skier triggered small slab avalanche.Small crowns from an apparently natural slides below Flagpole Peak. Professional Observer

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