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
03/25/2020 - 10:15

Snowpack Observation
Powderhouse

Luther Pass Area (including Job and Freel)
Looking down from pit area Hand hardness x2 CTM(15) SP at 95cm down Educator

Lake Tahoe Community College - Wilderness Educati
12/08/2019 - 13:30

Snowpack Observation
Incline Lake Peak

Mount Rose Area
approximately 3mm surface hoar down 65cm, near dropped pin Educator

Lake Tahoe Community College - Wilderness Educati
12/20/2020 - 13:00

Snowpack Observation
Deep Creek

Cabin Creek, Deep Creek, or Pole Creek Area
Educator

Alpenglow Expeditio
01/07/2022 - 12:00

Snowpack Observation
Powderhouse

Luther Pass Area (including Job and Freel)
Pic 1: Clearly identifiable decomposing rain crust between 60 and 61 cm. Pic 2: ECTX but when I pulled from the back with my shovel it did release but with a lot of pressure on the Dec 10 layer (60cm). Educator

Lake Tahoe Community College - Wilderness Educati
01/17/2016 - 13:30

Snowpack Observation
NW of Snowshed Wall

Donner Summit Area
Educator

Tahoe Mountain Scho
02/25/2017 - 10:30

Snowpack Observation
Donner Ridge

Donner Summit Area
Educator

Donner Summit Avalanche Semina
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
02/05/2022 - 12:11

Snowpack Observation
Johnson canyon

Donner Summit Area
Wind scoured surfaces on a N aspect Scouring of NE aspect, with slick rain crust on the surface, wind textured snow Crusts and developing facets near the surface on a N aspect Educator

Blackbird Mountain Guid
03/04/2022 - 13:30

Snowpack Observation
Powderhouse

Luther Pass Area (including Job and Freel)
Weak layer below very thin crust 20cm down. CTM(13) SP 20cm down. Educator

Lake Tahoe Community College - Wilderness Educati
11/29/2019 - 09:30

Snowpack Observation
Frog Lake

Carson Pass Area
View towards Elephants Back 55cm of light fist hard snow 10cm of facets at the bottom of the snowpack Closeup of the facets Educator

Lake Tahoe Community College - Wilderness Educati
02/12/2021 - 14:45

Avalanche Observation
The Grills

Little Truckee Summit Areas
Rider triggered slab on the Grills Educator

West Wind Collecti
01/23/2022 - 12:11

Snowpack Observation
Castle Peak

Donner Summit Area
Raised track and wind effect on the north face of Castle Sun softened snow on a South aspect @ 2pm Soft, surface faceted snow in sheltered terrain. 2-3mm surface hoar in a start zone above steep terrain Educator

West Wind Collecti
03/07/2021 - 09:30

Avalanche Observation
Shirley Canyon

Cabin Creek, Deep Creek, or Pole Creek Area
Terrain where surface instability occurred Close Up of surface instability Another close up of surface instability Educator

Alpenglow Expeditio
12/19/2021 - 13:15

Snowpack Observation
Relay Ridge

Mount Rose Area
Test slope producing small windslabs Wind texture and drifting snow along the ridge Dec 9 facets rounding Educator

West Wind Collecti
01/15/2020 - 15:30

Snowpack Observation
Powder house Meadow

Luther Pass Area (including Job and Freel)
Educator

Lake Tahoe Community College - Wilderness Educati

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