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
12/29/2018 - 11:45
Snowpack Observation 		Upper Cold Stream
Cabin Creek, Deep Creek, or Pole Creek Area 		Photo 1: Looking to the west at NE-E aspect near and above treeline terrain along the Sierra Crest, wind scoured snow surfaces and icy crusts were obvious. Forecaster
12/29/2018 - 14:00
Snowpack Observation 		South shoulder of Stevens Peak
Carson Pass Area 		Shady sheltered areas below tree line held very soft faceted snow. Sunny slopes are getting thin and starting to melt out in a few areas. Lots of evidence of previous wind activity. On a ridge area, firm slab over soft weak snow. Reverse skin track, with wind erosion on the east side due to NE winds. Professional Observer
12/29/2018 - 14:15
Snowpack Observation 		Andesite Peak
Donner Summit Area 		Visual outline of the Snowpack on a West Aspect Near Treeline @ 7600' Educator
Tahoe Mountain Scho
12/30/2018 - 11:00
Snowpack Observation 		Silver Peak
Cabin Creek, Deep Creek, or Pole Creek Area 		Signs of wind scouring on an exposed ridge. Forecaster
12/30/2018 - 12:30
Snowpack Observation 		Tamarack Peak
Mount Rose Area 		Exposed dirt and Knife hard sastrugi on Hour Glass Educator
Tahoe Mountain Scho
12/31/2018 - 12:00
Snowpack Observation 		Mt Tallac
Desolation Wilderness Area (including Emerald Bay) 		Professional Observer
01/01/2019 - 13:00
Snowpack Observation 		Indian Valley
Ebbetts Pass Area 		Professional Observer
01/02/2019 - 10:00
Snowpack Observation 		Porcupine Ridge
Luther Pass Area (including Job and Freel) 		A thin wind slab over roughly 15cms of very weak NSFs The wind slab varied in thickness and strength, but did show ability to crack. A lot of Surface Hoar in this area. North facing slopes held some impressively large Surface Hoar. Professional Observer
01/02/2019 - 12:00
Snowpack Observation 		Above Tom's Valley
Independence Lake Area 		Exposed, snomo ski breakable rain crust on ridgetop at ~8,100'. Old fracture failing down to the 12/22 rain crust. Faceted snow at this layer interface still shows problematic failure in snowpit tests. Forecaster
01/03/2019 - 10:00
Snowpack Observation 		Angora Peak
Desolation Wilderness Area (including Emerald Bay) 		Public
01/03/2019 - 11:00
Snowpack Observation 		Incline Lake Peak and Slab Cliffs
Mount Rose Area 		Forecaster
01/04/2019 - 11:15
Snowpack Observation 		Lincoln Ridge
Yuba Pass Area 		NE aspect wind scoured terrain at/just above treeline. Exposed rain crust on upper start zone, wind scoured mid slope, unconsolidated snow at treeline. Established tree well hazard if the forecasted 1-2+ feet of new snow verifies. Forecaster
01/04/2019 - 12:00
Snowpack Observation 		Rubicon Peak
West Shore Area 		Professional Observer
01/04/2019 - 13:30
Snowpack Observation 		Elephant's Hump
Carson Pass Area 		Professional Observer
01/05/2019 - 10:45
Snowpack Observation 		Fireplug
Mount Rose Area 		Forecaster

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