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
12/02/2017 - 12:00
Snowpack Observation 		Andesite Peak
Donner Summit Area 		Photo 1: Average height of snow near summit of AndesitePhoto 2: South Face of Castle Guide
Alpenglow Expeditio
12/02/2017 - 12:00
Snowpack Observation 		Mt. Lola
Independence Lake Area 		Large SH existed in lower meadow but not on open slope above. 8000', NE-E aspects.Evidence of wind destroyed SH on this open slope. 8200', N aspect. Forecaster
12/01/2017 - 12:00
Snowpack Observation 		Tamarack Peak
Mount Rose Area 		Protected treed area with 6-8'' of NSF's on top of P hard rain crust.F hard NSF's, mostly .5mm in size. Forecaster
12/01/2017 - 11:00
Snowpack Observation 		Carson Pass
Carson Pass Area 		Widespread large obvious Surface Hoar crystals.Large Surface Hoar crystalsSurface hoar and near surface facets comprised top 4-6 inches of snow. Professional Observer
11/30/2017 - 13:45
Snowpack Observation 		Judah Ridge just below reflector towers near treeline
Donner Summit Area 		Public
11/30/2017 - 11:00
Snowpack Observation 		Tamarack Peak and Fireplug
Mount Rose Area 		Forecaster
11/29/2017 - 12:45
Snowpack Observation 		Rubicon Peak
West Shore Area 		4mm surface hoar noted in below treeline openings.One of several hand pits indicating good bonding of recent storm snow to the rain cust below. Forecaster
11/29/2017 - 12:00
Snowpack Observation 		Castle Peak
Donner Summit Area 		Cornices above the N side of Castle PeakSurface hoar on a N aspect at 8500 ft. Small wind slab on a wind loaded test slope. The slab only measured about 5-10 cm (2-4 in) thick and did not extend downslope very far.ECTN on a wind loaded test slope at 8800 ft. on a NE aspect at the coordinates attached to the observation. Forecaster
11/28/2017 - 13:30
Snowpack Observation 		Roller Pass
Donner Summit Area 		Public
11/28/2017 - 11:45
Snowpack Observation 		Castle Peak
Donner Summit Area 		Blowing snow near the summit of Castle Peak as observed from vicinity of noted lat/long. Forecaster
11/28/2017 - 07:22
Avalanche Observation 		Incline Peak
Mount Rose Area
Public
11/27/2017 - 12:00
Snowpack Observation 		Tamarack Peak
Mount Rose Area 		East Ridge of Tamarack Peak. Some scouring of previously wind loaded terrain. Ski kicks on small test slopes had limited results with new snow. Forecaster
11/27/2017 - 12:00
Avalanche Observation 		Shoulder of Elephant Back above large shelf
Carson Pass Area
I was exiting above the rock in the center.
Looking down form where I exited the ridge. Notice the crack
Looking up. The highest part went the farthest, but was mostly sluff
 Public
11/27/2017 - 12:00
Snowpack Observation 		Frog Lake
Carson Pass Area 		New snow on top, wet snow below. By 11am, sun exposed snow was melting. Professional Observer
11/26/2017 - 14:23
Snowpack Observation 		Grouse rock
Blackwood Canyon or Ward Canyon Area 		Public

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