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
01/24/2018 - 08:50

Snowpack Observation
Red Lake peak

Carson Pass Area
Public
01/24/2018 - 11:00

Avalanche Observation
Lower Andesite Ridge

Donner Summit Area
Educator

Tahoe Mountain Scho
01/24/2018 - 12:00

Snowpack Observation
Rubicon Peak

West Shore Area
Blowing snow below treeline.Blowing snow near summit of Rubicon Peak. Fresh wind slabs below summit pinnacle on E aspect.Signs of small wind slabs forming with redistribution of old snow on the ground.Obvious plumes of blowing snow on Dick's Peak as seen from the saddle on the S side of Rubicon's summit. Forecaster
01/24/2018 - 14:28

Snowpack Observation
Wildflower Ridge

Donner Summit Area
Public
01/24/2018 - 23:30

Avalanche Observation
Lake of the Woods.

Independence Lake Area
Digging into the crown to look at the faceted failure layer.
Subtle line of mostly filled in crown visible ~ 10 ft down slope of person in photo.
Looking down the avalanche path.
Forecaster
01/25/2018 - 11:30

Snowpack Observation
East Ridge Tamarack Peak

Mount Rose Area
Stubburn wind slabs with cracking and shooting cracks in wind loaded terrain. Many large cornice drops on slopes caused shooting cracks but no slab release.  East Ridge of Tamarack.Wind textured surface snow on Far East Ridge.ECTP-29 failing into the old snow.  A layer of F hard snow existed below old surface crust.  9300', N aspect.Avalanche debris from early in the storm almost entirely covered up.  Cornice failure and/or wind slab avalanche release.  9300', N aspect. Forecaster
01/25/2018 - 12:00

Snowpack Observation
Andesite Ridge

Donner Summit Area
Minor storm slab cracking on slightly upside down storm snow 6 in below surface.Pit dug at top of below treeline avalanche path producing all ECTN results.Maximum extent of cracking seen in near or above treeline wind slab features.Ski cutting on wind slab test slopes produced either very minor or no results. Forecaster
01/26/2018 - 12:00

Snowpack Observation
Castle Pass and Andesite Ridge

Donner Summit Area
Ski cut on wind loaded test slope above treeline producing no signs of instability.Intentionally collapsing cornice pieces onto wind loaded slopes near the summit of Andesite Pk produced no slab failure, just entraining of loose dry snow. Forecaster
01/26/2018 - 12:30

Snowpack Observation
Silver Peak

Cabin Creek, Deep Creek, or Pole Creek Area
Loose dry sluff triggered by a ski cut on a steep below treeline test slope. N aspect 7700 ft.Small cracking on a wind-loaded test slope along the ridge. NE aspect 8100 ft. Forecaster
01/26/2018 - 16:00

Snowpack Observation
Bronco Chutes

Mount Rose Area
Cornice cut producing no instability on relatively sheltered N aspectWind Slab Crown measuring 30-40cm Ski cut on NW wind loaded complex terrain that resulted in a D2 Avalanche. Public
01/27/2018 - 08:00

Avalanche Observation
Midway between Lincoln and Anderson Peak

Donner Summit Area
Small, wide slab avalanche just below the Crest
Same slide from skier's left edge
Public
01/27/2018 - 09:05

Avalanche Observation
North Castle Peak

Donner Summit Area
North East of Castle North
Public
01/27/2018 - 10:00

Snowpack Observation
Chickadee Ridge

Mount Rose Area
Blowing snow near treeline.More blowing snow near treeline.Test slope wind slab failure 10' wide near noted lat/long.Some of the wind slab cracking giving clues to potential instability. Forecaster
01/27/2018 - 12:00

Snowpack Observation
Carpenter Ridge

Independence Lake Area
Cornice drop that produced no signs of instabilityCornice that failed during the last storm cycle Public
01/27/2018 - 12:00

Snowpack Observation
Blue Lakes

Carson Pass Area
Professional Observer

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