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 Snowpack, Avalanche, Weather Images Observation made by
01/20/2023 - 14:00
Snowpack Observation 		Northeast castle peak
Donner Summit Area 		Public
01/20/2023 - 12:00
Snowpack Observation 		Lincoln Ridge
Yuba Pass Area 		Avalanche from the night of Jan 18. Pit dug adjacent to this avalanche. Jan 18 surface hoar layer visible in the pit wall. Signs of E wind scouring as we moved into open areas. Large new surface hoar that formed last night. Only notable in that last night was very windy on the ridgetops, not typical formation conditions for SH. Forecaster
01/20/2023 - 12:00
Snowpack Observation 		Border Ruffian
Carson Pass Area 		A shovel tilt revealing buried surface hoar Impressive patterns along ridgelines from previous winds The direction of these erosion patterns indicate previous NE winds A small, shaded and wind loaded test slope below treeline Professional Observer
01/20/2023 - 09:52
Snowpack Observation 		Wind effect and wind slabs on Mt. Tallac
Desolation Wilderness Area (including Emerald Bay) 		Intermittent waves of cloud cover on the ascent. Hard melt freeze crusts on solar aspects above 7600'. Settlement cracks in below and near tree line terrain. Small wind slab release on ski cut. Planar result on shovel shear on wind slab. Buried surface 30cm down @ pit location. Moderate to strong east winds transporting snow off the summit. Professional Observer
01/20/2023 - 09:00
Avalanche Observation 		Job's Peak East Subsummit
Luther Pass Area (including Job and Freel) 		Public
01/20/2023 - 07:00
Avalanche Observation 		Deer Park/ Munchkins
Cabin Creek, Deep Creek, or Pole Creek Area 		Public
01/20/2023 - 01:50
Avalanche Observation 		Incline Peak
Mount Rose Area 		Public
01/20/2023 - 01:18
Snowpack Observation 		Shirley Canyon
Cabin Creek, Deep Creek, or Pole Creek Area 		Highly wind sculpted in areas exposed to wind Guide
Alpenglow Expeditions
01/19/2023 - 14:00
Avalanche Observation 		Highway 50 road observations
Echo Summit Area 		Public
01/19/2023 - 13:15
Avalanche Observation 		Crag Peak
Desolation Wilderness Area (including Emerald Bay) 		Public
01/19/2023 - 13:00
Avalanche Observation 		Monument Peak backside of Heavenly
Luther Pass Area (including Job and Freel) 		Public
01/19/2023 - 13:00
Snowpack Observation 		Castle Peak & Andesite Peak
Donner Summit Area 		Natural loose dry observed mid morning. Skier triggered loose dry in the mid afternoon hours. ECTP-8 on Jan 18 surface hoar layer at pit location (noted lat/long on map) The maximum extent of cracking we observed today on the SH layer. Buried SH found in hand pits on this E aspect terrain from the ridgetop down into open areas below treeline.. NE winds blowing snow on the top of Basin Peak. Forecaster
01/19/2023 - 12:45
Snowpack Observation 		Johnson Canyon "freeway peak"
Donner Summit Area 		Creek beds are open and deep 4-5 meters tricky creek crossing to/from East side of the canyon Guide
Tahoe Mountain School
01/19/2023 - 12:30
Avalanche Observation 		Kingsbury Grade
East Shore Area 		Public
01/19/2023 - 12:30
Snowpack Observation 		Below Elephant’s back
Carson Pass Area 		Probe pen 75cm Public
01/19/2023 - 12:08
Avalanche Observation 		Strong East Winds on Carson Range
Carson Pass Area 		East winds transporting snow off of Job's sister. Overhanging Cornice development on East facing slope. Ski cut cornice release of small soft chunks. Top 40cm of fist hard snow with preserved participation particles within it. Unintentional skier triggered avalanches. Over 330cm of snow @ 8900' on E aspect. Professional Observer
01/19/2023 - 11:27
Avalanche Observation 		Jobs Sister
East Shore Area 		Public
01/19/2023 - 11:00
Avalanche Observation 		Mount Judah
Donner Summit Area 		Guide
Tahoe Mountain School
01/19/2023 - 00:00
Snowpack Observation 		Mt Judah Public
01/18/2023 - 21:30
Avalanche Observation 		Castle Peak
Donner Summit Area 		Forecaster

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