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
12/08/2018 - 14:15
Snowpack Observation 		Johnson Canyon
Donner Summit Area 		Visual outline of the snowpack on NE Aspect @ 7300' 2-4mm Surface Hoar, these grains seemed to have some sort of icey deposit on them Side profile of current Surface Hoar Cornice cuts produced small loose dry avalanches Educator
Tahoe Mountain Scho
12/09/2018 - 11:45
Snowpack Observation 		Castle Peak
Donner Summit Area 		Outlined areas show observed wide spread surface hoar growth of >3mm Educator
Tahoe Mountain Scho
12/09/2018 - 12:00
Snowpack Observation 		Castle - Basin Peak Area
Donner Summit Area 		Wind slab failure on buried surface hoar on a wind-loaded test slope. Shooting cracks triggered by a ski cut on a near treeline wind-loaded test slope. This slab failed on buried surface hoar. Large surface hoar on the snow surface in a sheltered area , Forecaster
12/09/2018 - 12:00
Snowpack Observation 		East Ridge Tamarack Peak
Mount Rose Area 		Surface hoar failing on an artificially loaded PST. Crusts on windward slopes preventing wind transport of snow with moderate SW winds. Windward SE-S-SW aspects have limited snow in this area. Forecaster
12/09/2018 - 13:15
Snowpack Observation 		E of Boreal ski area
Donner Summit Area 		Educator
Donner Summit Avalanche Semina
12/09/2018 - 14:00
Avalanche Observation 		Mt. Tallac
Desolation Wilderness Area (including Emerald Bay) 		Forecaster
12/10/2018 - 11:00
Snowpack Observation 		Relay Peak
Mount Rose Area 		Small snow squall moving into the area. Small cornice piece dropped onto a test slope with no results. Forecaster
12/10/2018 - 11:00
Snowpack Observation 		Maggie's Peak
Desolation Wilderness Area (including Emerald Bay) 		Open area at 8400 feet on ridge between Maggie's Peaks showing NSFs but no Surface Hoar. Professional Observer
12/10/2018 - 11:45
Snowpack Observation 		N End of Janine's Ridge
Desolation Wilderness Area (including Emerald Bay) 		5cm Windslab Public
12/10/2018 - 12:00
Snowpack Observation 		Becker Peak
Echo Summit Area 		Professional Observer
12/11/2018 - 12:00
Snowpack Observation 		Thunder Mountain
Carson Pass Area 		Professional Observer
12/11/2018 - 12:00
Snowpack Observation 		Carpenter Ridge
Independence Lake Area 		Small wind slab at treeline on NE aspect. Unconsolidated snow along the ridgetop, still available for future wind transport. Forecaster
12/11/2018 - 12:45
Snowpack Observation 		Tamarack Peak
Mount Rose Area 		Heavy Traffic in the Hourglass Evidence of wind transport and loading in Broken Glass Thin snow cover (40cm) w vegetation showing and sun affected on SE aspect Public
12/12/2018 - 12:00
Snowpack Observation 		Elephant's Hump
Carson Pass Area 		Newly formed pencil hard wind slabs at treeline. Widespread evidence of wind scouring. Elevated tracks on Elephants Back. Forecaster
12/12/2018 - 12:30
Snowpack Observation 		South Ridge Houghton
Mount Rose Area 		Public

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