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 Snowpack, Avalanche, Weather Images Observation made by
12/10/2022 - 12:55

Snowpack Observation
Andesite Peak

Donner Summit Area
Large propagating shooting cracks Educator

Blackbird Mountain Guides
12/10/2022 - 11:40

Avalanche Observation
Deep Creek / Pole Creek Ridge

Cabin Creek, Deep Creek, or Pole Creek Area
Public
12/10/2022 - 11:00

Avalanche Observation
Andesite Peak

Donner Summit Area
Wind slab avalanche at 7800' in NTL terrain. Triggered this crack from the flat ridgeline that propagated and released this avalanche. Wind slab avalanche at 8200' triggered from ridgeline. 400' wide wind slab propagation from our trigger point down on ridge all the way up to the peak. Crown off of Andesite Peak, part of 400' wide wind slab avalanche. View down avalanche from top of peak Forecaster
12/09/2022 - 12:05

Avalanche Observation
Ralston Peak Ridgeline

Echo Summit Area
Public
12/09/2022 - 12:00

Snowpack Observation
Elephants Hump

Carson Pass Area
#1: 8000' on a NE aspect ECTP 29 on Dec 1 PWL Wind scoured snow surfaces in exposed areas with dense hard wind slabs #2: ECTN's and DTN on Dec 1 PWL Increasing clouds throughout the day #3: ECTP-28 on Dec 1 PWL Forecaster
12/09/2022 - 11:15

Avalanche Observation
Disingenuous

Cabin Creek, Deep Creek, or Pole Creek Area
Guide

Alpenglow Expeditions
12/09/2022 - 10:30

Snowpack Observation
Tamarack

Mount Rose Area
Sugary snow falling from hand Yesterday's tracks covered with blowing snow Public
12/09/2022 - 10:30

Snowpack Observation
Galena Ridge

Mount Rose Area
Public
12/09/2022 - 10:00

Snowpack Observation
Incline Peak

Mount Rose Area
Angular grains- dry and coarse in hand Guide

Tahoe Mountain School
12/08/2022 - 13:03

Snowpack Observation
Elephants Hump

Carson Pass Area
Public
12/08/2022 - 12:00

Snowpack Observation
Blue Lakes

Carson Pass Area
Professional Observer
12/08/2022 - 12:00

Snowpack Observation
Tamarack Peak

Mount Rose Area
Surface hoar was widespread on Tamarack Peak The winds had started to move snow and fill in old tracks by early afternoon. Lenticular clouds and waves on the lake herald strong winds and the approaching storm. Forecaster
12/08/2022 - 11:30

Snowpack Observation
Incline Peak

Mount Rose Area
Mid elevation Incline Peak High elevation Incline Peak Public
12/08/2022 - 11:00

Snowpack Observation
Stevens Peak

Carson Pass Area
Surface hoar up to 1 cm observed in openings in below tree line E facing terrain on Stevens. Appears to be a skier triggered slide from a couple of days ago. Plenty of wind slab present in windy zones above 8000 feet. Looking back at old slide. Winds really picked up around 11:30 with lots of blowing snow observed. Professional Observer
12/08/2022 - 10:30

Snowpack Observation
Red Lake Peak

Carson Pass Area
Public
12/07/2022 - 14:00

Snowpack Observation
Monument Peak

Luther Pass Area (including Job and Freel)
Public
12/07/2022 - 11:30

Snowpack Observation
Rubicon Peak

West Shore Area
Public
12/07/2022 - 11:00

Snowpack Observation
Winnemucca Lake

Carson Pass Area
Lots of surface hoar today Professional Observer
12/07/2022 - 11:00

Snowpack Observation
Mt. Watson

Sawtooth Ridge to Tahoe City
Widespread surface hoar existed in this area. ECTP26 that failed on the Dec 1st facet layer. Forecaster
12/07/2022 - 11:00

Snowpack Observation
Old Iron Mountain ski area

Outside of the Forecast Area
Public

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