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
12/02/2018 - 10:00
Snowpack Observation 		Broken Glass
Mount Rose Area 		Public
12/01/2018 - 14:15
Snowpack Observation 		Johnston Canyon
Donner Summit Area 		Educator
Tahoe Mountain Scho
12/01/2018 - 12:30
Snowpack Observation 		Tamarack peak East aspact at 9800'
Mount Rose Area 		Public
12/01/2018 - 12:15
Snowpack Observation 		Gareth Feldstein
Donner Summit Area 		Wind loading - small cornice 125cm weak top layer roughly 35cm Checking the crust @ 55cm - 30cm Crust @ 55cm Joe - extended column test (Low angle probably prevented negative test results) Wind loading along the ridge-line Lots of wind on the ridge-line Public
12/01/2018 - 11:00
Avalanche Observation 		Andesite Peak
Donner Summit Area 		One of several natural wind slab avalanches on Andesite Peak, E aspect, ~8,100'. Cracking triggered while breaking trail below treeline. Early signs of the instability in the area. The first wind loaded feature we approached at treeline, E aspect,~7,900'. Intentional remote skier triggered avalanche. View from triggering location. 20' shooting crack to where avalanche occurred. Pointing to far flank on the large bump in low visibility. 20' skier triggered shooting crack in near treeline terrain, ENE aspect. Another natural wind slab avalanche, above treeline terrain, ENE aspect, ~8,100'. Still another natural wind slab avalanche, above treeline terrain, ENE aspect, ~8,100'. Wide propagation with the far flank about 2/3rds of the way across the open slope in the background. Easily 200' wide. Forecaster
12/01/2018 - 10:30
Avalanche Observation 		Rubicon Peak
West Shore Area 		Mostly filled in crown line from a small skier triggered wind slab avalanche about 2 hours before we got there. NE aspect, 39 degree slope, 9100 ft. The crown goes from where I am taking the photo to where my partner is standing. Skier triggered shooting cracks resulting from a storm slab instability on an undercut slope. Skier triggered shooting cracks on a wind-loaded test slope. Lots of obstacles below 7500 ft. Forecaster
12/01/2018 - 07:45
Avalanche Observation 		Castle Peak
Donner Summit Area 		Public
12/01/2018 - 03:15
Snowpack Observation 		N Judah trees
Donner Summit Area 		Public
11/30/2018 - 15:30
Snowpack Observation 		Relay Peak
Mount Rose Area 		Public
11/30/2018 - 13:30
Snowpack Observation 		Grouse
Blackwood Canyon or Ward Canyon Area 		Public
11/30/2018 - 11:30
Snowpack Observation 		Frog Lake cliffs
Carson Pass Area 		Hard hardness of pit wall Evidence of previous wind effect on the snow surface even in near treeline terrain. Professional Observer
11/29/2018 - 12:30
Avalanche Observation 		Relay Peak
Mount Rose Area 		Small windslab along ridge line Public
11/29/2018 - 11:30
Snowpack Observation 		Castle Peak
Donner Summit Area 		High intensity wind loading at ridge top above treeline. High intensity wind loading at ridge top above treeline. Minor skier triggered cracking of newly formed wind slabs. Forecaster
11/29/2018 - 10:15
Avalanche Observation 		Andesite Peak
Donner Summit Area 		Forecaster
11/29/2018 - 08:00
Snowpack Observation 		Tamarack Peak
Mount Rose Area 		Public

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