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
04/09/2018 - 08:30
Snowpack Observation 		Andesite Peak
Donner Summit Area 		Open areas between 7,200' and 8,200' held a refreeze of the top 4 to 6 inches of the snow surface at 8:00 am. Snow surface in melt phase on E aspect at 7,540' at 8:30 am. Forecaster
04/08/2018 - 13:00
Snowpack Observation 		Pyramid Peak
Desolation Wilderness Area (including Emerald Bay) 		Glide cracks on an E facing granite slab at 8400 ft. 2-4 cm of corn snow on a sunny E aspect at 9000 ft at 1 pm. Large cornice collapses on a NE aspect at 8800 ft. It looks like these occurred during the rain storm. Public
04/08/2018 - 12:00
Snowpack Observation 		Carpenter Ridge
Independence Lake Area 		Deep slab. Looked fairly recent but I never got a better view. Wet slide that appeared to have released today. N bowl of Castle. Rain melt / freeze ice crust Skin penetration around noon on S aspect ~8,000' Public
04/08/2018 - 11:30
Snowpack Observation 		Rubicon Peak
West Shore Area 		Snow surface refreeze of the top 10 inches of snow on flat terrain at ~7,600' at 10 am. Feet of residual wet snow below the surface refreeze. Surface wet snow 2-3 inches deep at 11:30 am on E aspect at ~8,900' Forecaster
04/07/2018 - 14:00
Snowpack Observation 		Tamarack Peak
Mount Rose Area 		Breakable refreezing crust with deep wet snow below. Light snow above 10000 ft. on Mt. Rose Rime at 9700 ft on Tamarack Peak. Forecaster
04/06/2018 - 10:45
Snowpack Observation 		Andesite Ridge
Donner Summit Area 		Knee deep wet snow on an ENE aspect at 7560 ft. Small skier triggered pinwheels on a NE facing test slope. Forecaster
04/05/2018 - 11:30
Snowpack Observation 		Johnson Canyon
Donner Summit Area 		Spotty snow coverage on low elevation (below 7400 ft) S and SW aspects. Boot top deep wet snow on an E aspect at 7100 ft. at 11 am. The snow was still barely ski supportable at this time. Forecaster
04/05/2018 - 11:00
Snowpack Observation 		Red Lake Peak
Carson Pass Area 		Boot pen of only 5 cms on SE aspect at 9000 feet at 1100. Firm frozen snow extended down approximately 25 cms. Softer moist snow below that. Professional Observer
04/04/2018 - 12:00
Snowpack Observation 		Mt. Houghton
Mount Rose Area 		12:15pm on E aspect at 9400', 4-6'' boot pen. Forecaster
04/04/2018 - 11:45
Snowpack Observation 		Elephants Hump
Carson Pass Area 		Ankle deep boot penetration on an E aspect at 8000 ft. at 12:45 pm. Propogation saw test targetting the Feb facets (the layer my finger is pointing to). The test failed about 1/3 of the way through the column (where the saw is stuck into the block) indicating that fractures can propogate along the weak layer. (PST 50/150 END down 146cm) The Feb. facets that have rounded but still remain a loose layer buried deep in the snowpack. Forecaster
04/03/2018 - 11:00
Snowpack Observation 		Jakes Peak
West Shore Area 		Forecaster
04/02/2018 - 13:00
Snowpack Observation 		Mt. Tallac
Desolation Wilderness Area (including Emerald Bay) 		Relatively smooth and supportable conditions at the upper elevations. Below 8000' on E aspects at 12:30pm, unsupportable 6-10'' of snow existed on top of talus slopes. Skier triggered D1 in treed area. Forecaster
04/01/2018 - 11:45
Snowpack Observation 		Red Lake Peak
Carson Pass Area 		Limited signs of loose wet instabilities at 11:45am on East Face gullies. Snow was mostly supportable with 3-4'' of wet snow at 8000' at 11:45am. Forecaster
03/31/2018 - 14:30
Snowpack Observation 		Donner Peak
Donner Summit Area 		Guide
Tahoe Mountain Scho
03/31/2018 - 10:45
Snowpack Observation 		Silver Peak
Cabin Creek, Deep Creek, or Pole Creek Area 		Site of crown profile. 1 of 3 deep slab avalanches on N aspect terrain along the E ridge of SIlver. PST prepped to test Feb facets that was the failure layer in the avalanche. Another of 3 deep slab avalanches on N aspect terrain along the E ridge of SIlver. Forecaster

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