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
01/26/2019 - 14:45
Snowpack Observation 		The Grills AKA Tom's Meadow
Independence Lake Area 		Public
03/30/2023 - 13:30
Avalanche Observation 		Eureka Peak
Outside of the Forecast Area 		Public
02/28/2018 - 09:30
Snowpack Observation 		Powderhouse
Luther Pass Area (including Job and Freel) 		facets at 35cm depth facets below crust at 70cm depth fresh snow, barely cohesive. Surface hoar - present across the mountain Public
01/21/2020 - 12:00
Snowpack Observation 		Elephants Hump
Carson Pass Area 		Ridgetop drifting from strong SW winds. Intentionally triggered rollerballs, NE aspect at ~8,000'. Location of test pit 1. Location of test pit 2. Location of test pit 3. Forecaster
01/14/2021 - 11:00
Snowpack Observation 		Relay Peak
Mount Rose Area 		Mix snow surface conditions with variety of crusts present Northerly aspects held firm rain crusts at upper elevations. Small roller balls on E aspects where punchy wet snow existed. Forecaster
01/15/2022 - 14:45
Snowpack Observation 		Johnson Canyon
Donner Summit Area 		Surface Faceted Crystals Educator
Tahoe Mountain Scho
02/01/2019 - 11:30
Snowpack Observation 		Becker Peak
Echo Summit Area 		Public
04/03/2023 - 15:00
Snowpack Observation 		Frog Lake Ridge
Carson Pass Area 		Cracking on a wind loaded test slope Cracks on test slopes failed near the surface, and also at the new/old interface down almost 2 feet More cracking on a wind loaded test slope The leeward side of Elephant's Back was obscured by wind blown snow Big cornices along Frog Lake Ridge Graupel as new snowfall Professional Observer
03/04/2018 - 11:15
Avalanche Observation 		Negro Canyon
Donner Summit Area 		Looking up at the crown of the deep slab, left flank. Debris in the trees from the deep slab. Shooting cracks connecting to lower angle terrain. Climber's right end of crown with debris. Avalanche debris Crack in partially excavated pit immeadiately after weak layer collapsed. Photo taken from triggering snowpit location. These cracks ran 500' over to steeper terrain where it remotely triggered this avalanche beyond the view of this photo. Shooting cracks continued and went a total of 1000' away from this spot into lower angle terrain on the other side of the avalanche. Digging out one of the cracks-see attached snowprofile. Crack was 153cm deep down to the facet layer. Forecaster
01/25/2020 - 12:00
Snowpack Observation 		Slide Mountain
Mount Rose Area 		small surface hoar intact on N aspects at 2 pm wet snow surfaces on S-W aspects Public
01/22/2021 - 10:00
Snowpack Observation 		Far East Ridge of Tamarack
Mount Rose Area 		Ice exposed from wind scouring on Tamarack Lake Low level clouds obscuring the view across Lake Tahoe to the Sierra Crest. Breakable crust on a sheltered N facing slope. Forecaster
01/22/2022 - 13:26
Snowpack Observation 		Luther Pass
Luther Pass Area (including Job and Freel) 		Early morning cloud cover over Hawkins and Picketts peak. Boot pen @ 1000 @ 7600' on solar aspect. Breakable melt freeze crust on solar aspects. Thicker crusts in shaded areas with surface hoar growth on top of crust. 10cm boot pen on NE aspect above 9000'. Small pit on NE aspect @ 9500'. 10cm of near surface facets below 1-2cm thin crust in shaded areas. Poorly developed roller balls forming then breaking apart. Broken skies across Carson Pass during the afternoon. Professional Observer
02/05/2019 - 11:30
Snowpack Observation 		Tamarack Peak
Mount Rose Area 		Skier triggered shooting cracks propgated about 20 ft from the front and back of my skis on a wind-loaded test slope. Partly cloudy to mostly sunny skies by midday over the Mt. Rose area. Forecaster
04/08/2023 - 11:30
Snowpack Observation 		Slide Mountain
Mount Rose Area 		Crusts in the upper snowpack on a micro SE aspect at 9320 Trace of wintry new snow warming on solar aspects Public
03/06/2018 - 12:30
Snowpack Observation 		Powderhouse Peak
Luther Pass Area (including Job and Freel) 		Blue skies and warm temps Professional Observer

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