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
12/23/2017 - 14:30

Snowpack Observation
Andesite Ridge

Donner Summit Area
Wind loaded area on Andesite RidgeCloud cover and thin coverage on S. side of Castle Peak Educator

Tahoe Mountain Scho
12/10/2019 - 10:00

Snowpack Observation
Thopson Peak

Luther Pass Area (including Job and Freel)
Wind scouring on surface. 2-3cm breakable crust. Educator

Lake Tahoe Community College - Wilderness Educati
01/07/2021 - 11:30

Snowpack Observation
South of Red Lake

Carson Pass Area
Fist- snow in the Dec 11 layer, about 44cm down Large facets in the Dec 11 layer 44cm down to about 3cm above the ground Educator

Lake Tahoe Community College - Wilderness Educati
02/08/2019 - 13:00

Snowpack Observation
Donner Summit

Donner Summit Area
Educator

Tahoe Mountain Scho
04/04/2016 - 09:30

Snowpack Observation
Tamarack Pk - S side of Fireplug.

Mount Rose Area
Forecaster
04/02/2013 - 14:30

Snowpack Observation
Donner Peak and Mt. Judah

Donner Summit Area
Forecaster
01/14/2021 - 11:00

Snowpack Observation
Relay Peak

Mount Rose Area
Mix snow surface conditions with variety of crusts present Northerly aspects held firm rain crusts at upper elevations. Small roller balls on E aspects where punchy wet snow existed. Forecaster
03/08/2016 - 13:30

Snowpack Observation
Castle Peak and Andesite Ridge

Donner Summit Area
Forecaster
01/18/2022 - 12:30

Snowpack Observation
Fireplug and Mt. Rose

Mount Rose Area
Morning cover at around 10:00 am. Variable snow surface conditions with soft snow, wind affected snow, and firm surfaces existed on N aspects. Clouds dissipated during the middle of the day. Ski cuts triggered small roller balls and pinwheels on sunny S facing slopes between noon and 1 pm. We probed in 30-40 locations on this shading north facing terrain looking for weak snow below the surface. We found a few spots of weak snow near shallowly buried rocks, but we did not find a continuous layer of weak snow. Forecaster
04/22/2017 - 09:50

Snowpack Observation
Incline Lake Peak

Mount Rose Area
Strong snow surface refreeze of the top 4 to 5 inches on SE aspect at 8,600' at 9:25 am.Thin breakable crust over recent storm snow unaffected by melt on NE aspect around 9,100'.Small lose wet avalanche on test slope along summit ridge, NE aspect at 9,500' at 9:50am. Forecaster
03/18/2012 - 14:45

Snowpack Observation
Tamarack Peak

Mount Rose Area
Forecaster
11/27/2010 - 16:00

Avalanche Observation
Silver Peak

Cabin Creek, Deep Creek, or Pole Creek Area
Forecaster
03/12/2015 - 13:00

Snowpack Observation
Mt. Judah

Donner Summit Area
Forecaster
02/28/2021 - 11:00

Snowpack Observation
Lincoln Ridge

Yuba Pass Area
1-2 inches of soft wet snow on top of a shallow but supportable base on a low elevations SW facing slope. Exposed crusts and wind scoured features along the top of Lincoln Ridge Snowmobiles seemed to break through the upper crust and into some softer snow on northerly aspects Forecaster
12/29/2016 - 11:00

Snowpack Observation
Polaris Point

Blackwood Canyon or Ward Canyon Area
Buried surface hoar layer above the 12/15 NCF's.Close up of the buried surface hoar. Forecaster

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