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
03/22/2018 - 11:00

Snowpack Observation
Andesite Peak

Donner Summit Area
Shooting crack on an E - NE facing wind-loaded slope at 8100 ft. Rain runnels at 7500'. Large cornice drops did not cause wind slab failure.  Heavy, wet, deep snow existed at 8200' on the top of Andesite. Forecaster
03/22/2018 - 12:00

Avalanche Observation
Dicks Peak

Desolation Wilderness Area (including Emerald Bay)
Very difficult to see in photo, but very large crown in center. Forecaster
03/22/2018 - 12:00

Avalanche Observation
Ward canyon

Blackwood Canyon or Ward Canyon Area
Guide

Tahoe Mountain Scho
03/22/2018 - 13:00

Avalanche Observation
Proleteriat

Mount Rose Area
Avalanche on the Proletariat that failed on the buried graupel layer. Avalanche on the NE slope just W of Proletariat that may have been more of a wind slab and may not have involved the graupel layer. Forecaster
03/22/2018 - 17:00

Avalanche Observation
Desolation Wilderness

Desolation Wilderness Area (including Emerald Bay)
Forecaster
03/23/2018 - 03:30

Avalanche Observation
Tamarack Peak area

Mount Rose Area
Public
03/23/2018 - 03:30

Avalanche Observation
"Broken Glass" Tammarack Peak area

Mount Rose Area
Public
03/23/2018 - 03:30

Avalanche Observation
Mt. Houghton

Mount Rose Area
Public
03/23/2018 - 07:00

Avalanche Observation
Mt. Judah

Donner Summit Area
Public
03/23/2018 - 09:00

Avalanche Observation
Jobs Peak

East Shore Area
Public
03/23/2018 - 11:00

Avalanche Observation
Hidden Peak

West Shore Area
Supportable crust 6,500' to 7,150'. Crust giving way to unconsolidated storm snow at 7,500'. Signs of 2 to 3 inches of storm snow settlement around trees. Natural avalalanche, very fresh looking. Likely triggered by cornince fall earlier this morning. 1 of 2 similar avalanches in this cliff area. Blowing snow on summit ridge. Intentional cornince collapse produced no results. Forecaster
03/23/2018 - 11:30

Snowpack Observation
Powderhouse Peak

Luther Pass Area (including Job and Freel)
Most trees above 8200 feet showed significant signs of settlement. Above treeline the wind had compacted the new snow and made it very dense and slabby. Small cornices were impressively strong. No significant cracking or propagation observed. Wind affected snow below treeline (but nearing summit ridge). Professional Observer
03/23/2018 - 12:00

Avalanche Observation
Tamarack Peak

Mount Rose Area
Viewing the avalanche on the far east ridge of Tamarack from the Proleteriat Debris pile at the base of the avalanche. Smaller cornice pieces dropped onto a wind-loaded test slope. These did not trigger any cracking or wind slab failures. Some skier triggered cracking on a wind-loaded test slope. Forecaster
03/24/2018 - 01:30

Snowpack Observation
Andesite Ridge

Donner Summit Area
Guide

Tahoe Mountain Scho
03/24/2018 - 11:00

Snowpack Observation
Incline Lake Peak

Mount Rose Area
Large cornices along summit ridge. Note the cracked settlement cones on the trees. One of at least a half dozen storm slab avalanches that occurred in this area on March 22. Snowpit tests in the crown indicated that the weak layer was no longer reactive. Cracked settlement cone below treeline. Forecaster

Pages