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
02/24/2018 - 17:30
Snowpack Observation 		Andesite Ridge
Donner Summit Area 		Guide
Tahoe Mountain Scho
02/24/2018 - 16:15
Snowpack Observation 		Andesite Peak
Donner Summit Area 		Shooting crack on an E facing wind loaded test slope @ 7900 ft. after a few hard stomps The same test slope after a few more stomps. The wind slab slid down the small test slope. Forecaster
02/24/2018 - 13:30
Avalanche Observation 		Glades east of Ralston Peak
Desolation Wilderness Area (including Emerald Bay) 		Public
02/24/2018 - 12:39
Snowpack Observation 		Thumb rock
Donner Summit Area 		Public
02/24/2018 - 12:00
Snowpack Observation 		Trimmer Peak
Luther Pass Area (including Job and Freel) 		10' shooting cracks, while making switchback. shooting cracks Public
02/24/2018 - 10:00
Snowpack Observation 		Incline Lake Peak
Mount Rose Area 		Potentially problematic interface of recent storm snow on top of old near surface facets as seen in the pit wall. Newly formed cornices, easy to intentionally collapse onto small test slopes below. Newly formed wind slab fractured by a ski cut on this test slope. Moderate amounts of blowing snow. Forecaster
02/24/2018 - 10:00
Avalanche Observation 		National Geographic Bowl, Granite Chief Peak
Cabin Creek, Deep Creek, or Pole Creek Area 		Natural wind slab avalanche Shooting crack in obvious wind slab Guide
Alpenglow Expeditio
02/23/2018 - 14:30
Snowpack Observation 		Thunder Mountain
Carson Pass Area 		Public
02/23/2018 - 12:30
Snowpack Observation 		top of NatGeo bowl
Cabin Creek, Deep Creek, or Pole Creek Area 		Guide
Alpenglow Expeditio
02/23/2018 - 12:00
Snowpack Observation 		Ebbetts Pass and Hiram Peak
Ebbetts Pass Area 		Professional Observer
02/23/2018 - 11:00
Snowpack Observation 		Castle Peak
Donner Summit Area 		Cornice on the right (E aspect) and wind pillow on the left (W aspect) due to the shift from SW to NE winds. Wind scoured cornices on E aspect between Castle Pass and Castle Pk. Blowing snow along the Castle Pk - Basin Pk ridgeline. No signs of new wind slab formation. Forecaster
02/23/2018 - 09:00
Snowpack Observation 		W end Boreal Ridge
Donner Summit Area 		Guide
Donner Summit Avalanche Semina
02/22/2018 - 13:45
Snowpack Observation 		Grouse rock
Blackwood Canyon or Ward Canyon Area 		Small loose dry avalanche Skin track filled back in - less than 1 hour Guide
Tahoe Mountain Scho
02/22/2018 - 12:00
Snowpack Observation 		Frog Lake Ridge
Carson Pass Area 		Professional Observer
02/22/2018 - 11:00
Snowpack Observation 		Incline Lake Peak/Slab Cliffs
Donner Summit Area 		Forecaster

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