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
04/22/2017 - 09:50
Snowpack Observation 		Incline Lake Peak
Mount Rose Area 		Strong snow surface refreeze of the top 4 to 5 inches on SE aspect at 8,600' at 9:25 am.Thin breakable crust over recent storm snow unaffected by melt on NE aspect around 9,100'.Small lose wet avalanche on test slope along summit ridge, NE aspect at 9,500' at 9:50am. Forecaster
04/21/2017 - 12:00
Snowpack Observation 		Rose Knob
Mount Rose Area 		Large cornice collapse that occurred between 11 and 11:30 am this morning.Small loose wet instabilities on an E-NE aspect at about 8800 ft. Wet snow depth at 11:30 am on a S-SE aspect at 9000 ft.Wet snow depth at 12:00 on a S-SW aspect at 8400 ft. Forecaster
04/19/2017 - 12:15
Snowpack Observation 		Negro Canyon
Donner Summit Area 		Boot top deep wet snow on a S aspect @ 7000 ft. @ 12:15pmVery small wet snow sluffs on an E-SE aspect @ 7200 ft. @ 12:30 pmLarge cornice collapse likely from 4/18/2017 Forecaster
04/19/2017 - 12:00
Snowpack Observation 		Ralston
Echo Summit Area 		Professional Observer
04/19/2017 - 10:00
Snowpack Observation 		National Geographic Bowl, Granite Chief Peak
Cabin Creek, Deep Creek, or Pole Creek Area 		cornice fallCornice crackwet looseski cut wet loose Guide
Alpenglow Expeditio
04/18/2017 - 12:30
Snowpack Observation 		Hidden Peak
West Shore Area 		Small loose wet avalanches resulting from cornice pieces dropped onto a NE facing wind-loaded slope near 9100 ft. Small loose wet avalanches resulting from cornice pieces dropped onto a NE facing wind-loaded slope near 9100 ft. Loose wet instabilities on a N facing slope at around 7400 ft. Ski cuts triggered small cracking on a wind-loaded test slope near the summit of Hidden Peak. Forecaster
04/17/2017 - 11:45
Snowpack Observation 		Tamarack Peak
Mount Rose Area 		Foggy/misty conditions on Tamarack Peak.ECTN results in testpit. Forecaster
04/16/2017 - 12:30
Avalanche Observation 		NE bowl of Echo Peak
Echo Summit Area
Public
04/16/2017 - 12:00
Snowpack Observation 		Powderhouse
Luther Pass Area (including Job and Freel) 		Graupel still present and easily found on top of old rain crust.In early afternoon roller ball activity on NE shaded slopes had grown to significant size. Professional Observer
04/16/2017 - 11:15
Snowpack Observation 		Rubicon Peak
West Shore Area 		Ski cut placed on test slope just after roller ball video was taken produced this shallow loose wet avalanche. Forecaster
04/15/2017 - 15:30
Snowpack Observation 		Andesite Peak
Donner Summit Area 		Intentionally skier triggered loose wet avalanche on test slope entraining about the top 1 foot of the snowpack.Closer up view of same loose wet test slope avalanche.Skier triggered roller ball, ~2 ft diameter.Skier triggered roller ball, ~2.5 ft diameter. Forecaster
04/15/2017 - 15:06
Snowpack Observation 		Barker Pass
Blackwood Canyon or Ward Canyon Area 		Storm Slab Release Snowmobile Trigger Public
04/15/2017 - 13:00
Avalanche Observation 		Tallac Cross
Desolation Wilderness Area (including Emerald Bay) 		Public
04/15/2017 - 13:00
Avalanche Observation 		Mt. Tallac Cross
Desolation Wilderness Area (including Emerald Bay) 		Public
04/15/2017 - 12:00
Snowpack Observation 		Red Lake Peak
Carson Pass Area 		Professional Observer

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