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
02/09/2023 - 14:30
Snowpack Observation 		Frog Lake Cliffs
Donner Summit Area 		Guide
Alpenglow Expeditio
02/09/2023 - 12:00
Snowpack Observation 		Horse Meadow
Luther Pass Area (including Job and Freel) 		Old wind rolls in the trees, with a new round of surface hoar on top Rollerball activity at 9,400ft Prying on ECT columns left only partly planar surfaces Professional Observer
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
02/09/2023 - 11:30
Snowpack Observation 		Yuba Pass
Yuba Pass Area 		Jan 29 buried surface hoar layer. Unreactive at this location. Jan 29 buried SH layer. 1 to 2.5cm in size. Location of ECT's Forecaster
02/08/2023 - 12:30
Snowpack Observation 		The Sisters
Carson Pass Area 		Public
02/08/2023 - 11:01
Snowpack Observation 		Silver Peak
Cabin Creek, Deep Creek, or Pole Creek Area 		Guide
Tahoe Mountain Scho
02/08/2023 - 11:00
Snowpack Observation 		Silver Peak
Cabin Creek, Deep Creek, or Pole Creek Area 		Signs of wind effect on the snow surface were widespread near treeline and above treeline. Old, very shallow wind slab avalanche in NE aspect terrain near treeline. 2 to 3 inches of surface wet snow with rollerballs and small pinwheels on SE aspect terrain around 7,800'. Thin sun crust in areas of direct sun exposure at 8,200'. Forecaster
02/08/2023 - 10:47
Snowpack Observation 		Unreactive buried surface hoar on Elephant's Hump
Carson Pass Area 		Compression tests showing initiation on buried surface hoar @ 30cm down. ECTN results on buried surface hoar. Wet snow on solar aspects just before noon. Large wind waves on the face of Elephant's back from Monday's wind event. Professional Observer
02/08/2023 - 10:30
Snowpack Observation 		Deer Park
Five Lakes Area 		Educator
Alpenglow Expeditio
02/08/2023 - 07:00
Snowpack Observation 		Above heart chute
Donner Summit Area 		Public
02/07/2023 - 13:30
Snowpack Observation 		Shirley Canyon
Cabin Creek, Deep Creek, or Pole Creek Area 		Guide
Alpenglow Expeditio
02/07/2023 - 13:20
Snowpack Observation 		South of Red Lake
Carson Pass Area 		Public
02/07/2023 - 12:30
Snowpack Observation 		Hidden Peak
West Shore Area 		Investigating a reported slab avalanche from 2 days ago on Sunday. Storm slab failed on NSF below the Sunday storm snow. Small cracking in some of the recent wind features. Previous wind scouring in exposed NTL areas. Wet surface snow with roller balls on E aspects by late morning. Increased cloud cover by early afternoon Forecaster
02/06/2023 - 13:00
Avalanche Observation 		Peak 7720
Donner Summit Area 		Potential small natural avalanche crown on small rollover in open BTL terrain. Did not investigate area or crown. ECTP-21 on buried surface hoar layer. 7200' on N aspect: Rain crust above thumb, index finger pointing to reactive buried surface hoar. Small wind feature failing 1' deep on new snow/old snow interface. Just over 1' of new storm snow on top of a rain crust. Below RC was a F hard layer of buried surface hoar and near surface facets. Guide
Tahoe Mountain Scho
02/06/2023 - 12:00
Snowpack Observation 		Blue Lakes
Carson Pass Area 		Plumes of wind blown snow seen from many big terrain features in the afternoon ECTs took hard taps but did propagate on the facets The only recent slab avalanche we saw today, on an E aspect of The Nipple Professional Observer

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