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
01/07/2023 - 11:00
Snowpack Observation 		Dinosaur Ridge
Donner Summit Area 		Public
03/04/2018 - 02:30
Avalanche Observation 		below Echo Peak, above Angora Lake
Echo Summit Area 		Public
03/11/2019 - 12:00
Snowpack Observation 		Tamarack Peak
Mount Rose Area 		Thick low to mid level clouds during the morning hours on Tamarack Peak. East Ridge of Tamarack Peak with cornices and some recent NE wind scouring. Cornice collapses partially covered by additional new snow. Forecaster
03/21/2020 - 12:00
Snowpack Observation 		Wrights Lake
Outside of the Forecast Area 		Warming snow Blue skies, Graupel, and snow all within 5 minutes Public
12/30/2021 - 14:00
Avalanche Observation 		upper east shoulder, Mt. Rose proper
Mount Rose Area 		Public
01/08/2023 - 12:15
Avalanche Observation 		Deep Creek Ridge line
Cabin Creek, Deep Creek, or Pole Creek Area 		Cornice dropped easily Avalanche deposit looking up slope to the cornice Public
03/10/2018 - 11:15
Snowpack Observation 		lower Hawk's Peak, Tahoe Donner Nordic area
Donner Summit Area 		Public
03/16/2019 - 11:00
Snowpack Observation 		Mt. Judah
Donner Summit Area 		Thin surface melt-freeze layer over dry snow (not yet a corn setup). Thin surface melt-freeze layer over dry snow (not yet a corn setup). Wet snow over dry snow without a melt-freeze crust in between. Small surface hoar on N aspect terrain near Mt. Judah summit. Breakable crust on N aspect around 7,100'. Forecaster
12/31/2020 - 13:00
Snowpack Observation 		Poulsen's Peak
Cabin Creek, Deep Creek, or Pole Creek Area 		minor N wind effect near Poulsen's Peak Educator
Alpenglow Expeditio
03/25/2020 - 10:00
Snowpack Observation 		Elephant's Hump
Carson Pass Area 		Professional Observer
01/02/2022 - 13:01
Snowpack Observation 		Incline Peak
Mount Rose Area 		Public
01/12/2023 - 11:50
Avalanche Observation 		Flagpole Peak
Echo Summit Area 		Public
03/14/2018 - 12:00
Avalanche Observation 		Castle Peak/Andesite Peak
Donner Summit Area 		Shooting cracks with wind slab release on E aspect, 8000', on Castle Ridge. 1.5 to 2' deep wind slab on NW aspect, 8250', 35 degree slope. Natural wind slab/cornice release partially covered by additional snow. Forecaster
03/20/2019 - 12:30
Snowpack Observation 		Rubicon Peak
West Shore Area 		4 inches of wind affected snow near the summit of Rubicon Small inconsequential wind slab near the summit of Rubicon Upper snowpack at around 8000 ft. on an E aspect on Rubicon Cloudy skies looking N from Rubicon. Forecaster
01/04/2021 - 12:00
Avalanche Observation 		Lincoln Ridge
Yuba Pass Area 		Intentionally triggered wind slab avalanche with a small cornice drop. Gale force SW winds on ridge building large fragile cornices with up to 2-2.5' wind slabs. Cracking on small wind loaded test slope. Forecaster

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