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
01/02/2020 - 14:30
Snowpack Observation 		Castle Peak
Donner Summit Area 		Public
01/02/2020 - 12:00
Snowpack Observation 		Donner Peak
Donner Summit Area 		Public
01/02/2020 - 11:00
Snowpack Observation 		Relay Peak
Mount Rose Area 		Thin rain crust under a half inch of new snow at 8,500'. Breakable rain crust scoured of any new snow on SW aspect at 8,600'. Minor blowing snow with more downslope saltation than slab deposition at 9,700'. Forecaster
01/01/2020 - 14:00
Snowpack Observation 		Donner Ridge/Sunrise Bowl
Donner Summit Area 		Breakable rain crust on Donner Ridge Forecaster
01/01/2020 - 13:00
Snowpack Observation 		Waterhouse Peak
Luther Pass Area (including Job and Freel) 		Public
01/01/2020 - 12:15
Snowpack Observation 		Peak 9008
Luther Pass Area (including Job and Freel) 		The wet surface snow produced easy roller balls. A light rain fell during the late morning up to 9000. Excellent glopping conditions between 8000-9000 feet. Professional Observer
01/01/2020 - 10:30
Snowpack Observation 		Galena Peak
Mount Rose Area 		Pinwheels near the road cut Rollerballs off ski track Public
01/01/2020 - 09:30
Snowpack Observation 		Castle Peak
Donner Summit Area 		Public
01/01/2020 - 01:30
Snowpack Observation 		Incline peak
Mount Rose Area 		Public
12/31/2019 - 10:30
Snowpack Observation 		Castle Peak
Donner Summit Area 		Wind scouring on numerous aspects at and above treeline. Small 4 inch thick hard wind slab failure on NW aspect test slope. Forecaster
12/30/2019 - 12:00
Snowpack Observation 		Tamarack Junction
Carson Pass Area 		Professional Observer
12/30/2019 - 10:45
Snowpack Observation 		Mt. Judah
Donner Summit Area 		Dense fog throughout the morning hours with limited visibility. Small shooting cracks in wind loaded terrain. 4'' reactive wind slab newly formed from the NE winds. W aspect at 8000' just off ridgeline. Reactive cornices that were built out from yesterdays SW wind event. 8-12'' deep. E bowl of Judah wind scoured by the NE winds. Forecaster
12/30/2019 - 09:00
Snowpack Observation 		Mt. Judah
Donner Summit Area 		Public
12/30/2019 - 01:45
Snowpack Observation 		Silver Peak
Cabin Creek, Deep Creek, or Pole Creek Area 		Public
12/29/2019 - 13:00
Snowpack Observation 		Mt. Judah
Donner Summit Area 		light blowing snow over this cornice below treeline Educator
Alpenglow Expeditio

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