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
02/03/2021 - 12:30
Snowpack Observation 		Red Lake Peak
Carson Pass Area 		Looking across Hope Valley @ 10:30. Breakable melt freeze crust in lower elevations on sunny aspects. Ski cut wind slab Ski cut wind slab. Pit Profile at 8600'. Wind loaded and effected slope. Professional Observer
02/18/2022 - 14:37
Snowpack Observation 		Castle/Andesite Peak
Donner Summit Area 		South side of Castle melting out along ridge lines Guide
Tahoe Mountain Scho
02/20/2019 - 11:00
Snowpack Observation 		Polaris Point
Blackwood Canyon or Ward Canyon Area 		Periodic snow showers S1 to S5. S5 in this photo at 11:15 am. Forecaster
02/09/2023 - 12:00
Snowpack Observation 		Calm clear day on Trimmer Peak
Luther Pass Area (including Job and Freel) 		Breakable melt freeze crust on solar aspects in below tree line terrain. 25cms of buried near surface facets on NW aspect @ 7800'. Non-compressible NSF below recent snow in pit @ 7800. Wind effected snow in open areas in near tree line terrain. 330cm of snow at 9200'. Unreactive buried surface hoar at 9200' 25cm down. Professional Observer
02/27/2020 - 11:30
Snowpack Observation 		Mt. Judah
Donner Summit Area 		Early signs of a developing loose wet avalanche problem at 11:30 am on at S aspect at ~7,800'. Superficial refreeze of the top 2 inches of the snowpack with wet snow below in areas under forest canopy. Forecaster
02/06/2021 - 11:30
Avalanche Observation 		Unnamed Flattop Pk at head of Pole Creek drainage
Cabin Creek, Deep Creek, or Pole Creek Area 		D2.5, R4 avalanche likely triggered by cornice fall off of the center of the cliff. Debris ran through two gullies all the way to the large open meadow at the bottom of the slope. One of two gullies that the debris ran through. Alpha angle at the photo spot was 20 degrees. The debris ran downslope for another 300' below this point. Crown depth average 5', max 6'. Small secondary crown off of flank. Forecaster
02/23/2022 - 12:00
Snowpack Observation 		Elephant's Hump
Carson Pass Area 		Professional Observer
02/23/2019 - 10:30
Snowpack Observation 		Ralston Peak
Desolation Wilderness Area (including Emerald Bay) 		ECTP10 4 inches down on a windslab near the Ralston Summit, see observation location. Windslab failure from skinning above a tree moat. Ski track refilling from wind transport after 90 minutes. Public
02/12/2023 - 12:00
Avalanche Observation 		Galena Creek Drainage
Mount Rose Area 		Public
03/02/2020 - 11:00
Snowpack Observation 		Relay Ridge
Mount Rose Area 		NE winds approaching gale force Skin track refill in less than 30 minutes Public
02/09/2021 - 04:30
Snowpack Observation 		Blue Lakes
Carson Pass Area 		Public
02/27/2022 - 13:30
Snowpack Observation 		Red Lake Peak
Carson Pass Area 		Educator
Lake Tahoe Community College - Wilderness Educati
02/20/2018 - 12:00
Snowpack Observation 		Black Butte
Carson Pass Area 		Professional Observer
02/25/2019 - 09:30
Snowpack Observation 		Fire Plug
Mount Rose Area 		Kicking at the uphill side of the skin track yielded some small windslab failures Windslab from first photo. Isolated pockets of sun softened crust on SSE aspects at 10:30. Public
02/18/2023 - 13:52
Snowpack Observation 		Trees east of Polaris bowl
Carson Pass Area 		Snow pit test CT20 SP 25cm down Q1 block on column test Public

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