These observations document past conditions at a small and variable scale. They are not too 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 Region Observation Type Photos Snowpack, Avalanche, Weather Videos Snowpit videos (tests, etc) Observation made by
02/20/2021 - 12:30 Tragedy Springs Carson Pass Area Snowpack Observation Test slope #1 Public
02/20/2021 - 10:30 Saddle between Scotts Lake and Big Meadow Carson Pass Area Snowpack Observation Public
02/20/2021 - 09:00 Andesite Peak Donner Summit Area Snowpack Observation Two small wind slabs, both intentionally triggered. Wind slabs failing on a density change mid height within the wind drifted storm snow. Storm slab cracking while breaking trail. Large grauple at the old/new interface on top of rain crust. More clearing than expected leading to minor snow surface warming. Forecaster
02/19/2021 - 16:00 Mt tamarack Mount Rose Area Snowpack Observation Public
02/19/2021 - 11:30 Tamarack Peak Mount Rose Area Snowpack Observation Ski kick triggered cracking along the east ridge of Tamarack Peak. These wind slabs remained shallow and only extended a few feet down slope. Ski kick triggered cracking along the east ridge of Tamarack Peak. These wind slabs remained shallow and only extended a few feet down slope. this was the largest one we saw. Fragile cornices on the Prolateriate ridgeline. Cornices built out along the east ridge of Tamarack Peak. ECTP's on a NE facing wind-loaded test slope at 9800 ft near the top of Tamarack. Blowing snow and sun trying to poke through the clouds. Wind scoured surfaces on windward aspects. Forecaster
02/19/2021 - 09:00 Hope Valley / Tamarack Junction Carson Pass Area Snowpack Observation Public
02/19/2021 - 07:00 Tamarack Peak Mount Rose Area Avalanche Observation Public
02/18/2021 - 11:00 Mt. Judah Donner Summit Area Snowpack Observation Wind exposed terrain scoured to firm icy rain crusts Freezing rain on trees and snow surface Increasing clouds mid to late morning. Large overhanging cornices exist in many locations. Forecaster
02/17/2021 - 12:00 Freel Peak Luther Pass Area (including Job and Freel) Snowpack Observation Professional Observer
02/17/2021 - 11:00 Castle Peak Donner Summit Area Avalanche Observation Cornice failure on the north side of ridge from Castle Peak Avalanche on the north east aspect of Andesite Wind loading below Castle Peak Wind transporting snow from the north bowl of Castle Peak Public
02/17/2021 - 09:00 Tamarack Peak Mount Rose Area Snowpack Observation Wind scoured and sculpted surfaces were widespread ECTP 22 that failed on softer snow (4f) below a firm (1f) wind slab on a NE facing tesl slope at ~9800 ft. Raised ski tracks caused by wind scouring Wind scoured and sculpted surfaces in the Hourglass Settlement cones around trees in a sheltered area Forecaster
02/16/2021 - 13:00 Eagle Creek and Cascade Creek drainages Desolation Wilderness Area (including Emerald Bay) Avalanche Observation Eagle Creek loose wet avalanches on E aspect terrain at ~7,600'. Forecaster
02/16/2021 - 12:15 Hidden Peak West Shore Area Snowpack Observation Rain crust on the snow surface at 8,200'. Patchy mix of exposed rain crust and 0 to 1" of new snow near the summit at 9,150' Surface rain crust. Forecaster
02/16/2021 - 11:30 Carson pass Carson Pass Area Snowpack Observation Thick breakable rain crust. Thin graupel layer on surface. Ice crust with wind blown graupel on surface. Rain crust. Freezing rain on trees near 9000’ Wind blowing graupel layer around the face of Elephants Back. Skin-track with breakable ice crust. Professional Observer
02/16/2021 - 10:00 Mount Lincoln Donner Summit Area Avalanche Observation Public

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