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
03/04/2018 - 09:30
Snowpack Observation 		Hourglass Bowl Tamarack Peak
Mount Rose Area 		Wind Slab Fracture on Tamarack Peak Guide
California Ski Guid
03/04/2018 - 11:00
Avalanche Observation 		Mt. Tallac
Desolation Wilderness Area (including Emerald Bay) 		Public
03/04/2018 - 11:15
Avalanche Observation 		Negro Canyon
Donner Summit Area 		Looking up at the crown of the deep slab, left flank. Debris in the trees from the deep slab. Shooting cracks connecting to lower angle terrain. Climber's right end of crown with debris. Avalanche debris Crack in partially excavated pit immeadiately after weak layer collapsed. Photo taken from triggering snowpit location. These cracks ran 500' over to steeper terrain where it remotely triggered this avalanche beyond the view of this photo. Shooting cracks continued and went a total of 1000' away from this spot into lower angle terrain on the other side of the avalanche. Digging out one of the cracks-see attached snowprofile. Crack was 153cm deep down to the facet layer. Forecaster
03/04/2018 - 12:00
Avalanche Observation 		Jakes Peak
West Shore Area 		Looking down slope from the right flank of crown. Part of the crown. Crown line. Forecaster
03/04/2018 - 12:00
Avalanche Observation 		Twin lakes/Lost Lakes
Carson Pass Area 		Public
03/04/2018 - 12:15
Avalanche Observation 		Trimmer Peak
Echo Summit Area 		Public
03/04/2018 - 12:30
Snowpack Observation 		Tour on Rubicon Peak
West Shore Area 		Public
03/04/2018 - 13:15
Avalanche Observation 		National Geographic Bowl, Granite Chief Peak
Cabin Creek, Deep Creek, or Pole Creek Area 		Large deep slab that failed during the storm Shooting crack Guide
Alpenglow Expeditio
03/04/2018 - 14:30
Avalanche Observation 		Pole Creek
Cabin Creek, Deep Creek, or Pole Creek Area 		Deep Slab avalanche viewed from Helicopter Guide
Alpenglow Expeditio
03/04/2018 - 15:00
Snowpack Observation 		Frog Lake
Carson Pass Area 		270 cm total snow height at this location. Buried near surface facets down 125 cms. Deep tap test. DTM13 on buried NSFs. Large crack behind where a cornice had partially broken away. This was covered by snow. Professional Observer
03/04/2018 - 19:00
Avalanche Observation 		About 100 feet down from the bowl at the top of ‘elevens’ on Trimmer
Luther Pass Area (including Job and Freel) 		Public
03/05/2018 - 09:45
Snowpack Observation 		Andesite Peak
Donner Summit Area 		Guide
Donner Summit Avalanche Semina
03/05/2018 - 13:00
Snowpack Observation 		Incline Lake Peak
Mount Rose Area 		Minimal roller ball activity on E aspect, 9500', by early afternoon. Forecaster
03/05/2018 - 14:15
Snowpack Observation 		Tram Ridge, Shirley Canyon
Cabin Creek, Deep Creek, or Pole Creek Area 		facets in Shirley Canyon Guide
Alpenglow Expeditio
03/06/2018 - 10:15
Snowpack Observation 		W side Castle Pk
Donner Summit Area 		Educator
Donner Summit Avalanche Semina

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