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
01/02/2015 - 11:15
Snowpack Observation 		Lincoln Ridge
Yuba Pass Area 		Forecaster
11/28/2022 - 11:00
Snowpack Observation 		Lincoln Ridge
Yuba Pass Area 		Note the ski penetration into faceted surface snow on this NE aspect, near treeline traditional avalanche start zone. One tiny pocket of wind slab with very weak facets below it on a NE aspect at treeline. A this weak melt-freeze crust was widespread on the surface in areas of both sun and shade below about 7,300'. 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
01/04/2021 - 12:00
Avalanche Observation 		Lincoln Ridge
Yuba Pass Area 		Intentionally triggered wind slab avalanche with a small cornice drop. Gale force SW winds on ridge building large fragile cornices with up to 2-2.5' wind slabs. Cracking on small wind loaded test slope. Forecaster
12/02/2021 - 11:00
Snowpack Observation 		Lincoln Ridge
Yuba Pass Area 		Move snow cover at 7,600' than we have seen in the rest of the forecast area. Facets from the Nov 9 layer starting to show striations. Surface hoar in excess of 1 cm that will likely be destroyed before burial. Forecaster
12/17/2017 - 12:30
Snowpack Observation 		Lincoln Ridge
Yuba Pass Area 		Variable wind scoured snow surfaces in open N-NE facing areas at 7600 ft.Firm rain crust exposed by wind scouring on a NE aspect near the ridgeline.Snow coverage at 7200 ft. Near surface facets on northerly aspects. Forecaster
12/15/2020 - 09:15
Snowpack Observation 		Above long creek
Yuba Pass Area 		EctP7down35 cm. On dec 11 layer December 11 facet layer Snow pit Public
02/19/2012 - 12:30
Snowpack Observation 		Lincoln Ridge
Yuba Pass Area 		Forecaster
12/06/2018 - 11:45
Snowpack Observation 		Lincoln Ridge
Yuba Pass Area 		Fog conditions below 7,700'. Sunny skies above the inversion layer. Rimed surface snow and plenty of snow available on W aspects for future wind transport. Rimed surface snow. Rimed surface snow. Forecaster
11/29/2016 - 11:00
Snowpack Observation 		Lincoln Ridge
Yuba Pass Area 		Forecaster
11/18/2022 - 10:55
Snowpack Observation 		Lincoln Ridge
Yuba Pass Area 		Notable large surface hoar in open areas below treeline. Notable large surface hoar in open areas below treeline. Cornices along Lincoln Ridge are still large enough to act as avalanche start zones despite recent NE wind scouring. Forecaster
02/28/2021 - 11:00
Snowpack Observation 		Lincoln Ridge
Yuba Pass Area 		1-2 inches of soft wet snow on top of a shallow but supportable base on a low elevations SW facing slope. Exposed crusts and wind scoured features along the top of Lincoln Ridge Snowmobiles seemed to break through the upper crust and into some softer snow on northerly aspects Forecaster
12/27/2018 - 12:00
Snowpack Observation 		Lincoln Ridge
Yuba Pass Area 		NE winds scouring cornices and drifting snow over the ridgetop. First signs of recent wind transport in textured surface upon reaching near treeline terrain. At 7,200', 8 inches of recent storm snow on top of 12/22 rain crust. No 12/24 rain crust present at and above 7,200'. ECTP-30 on 12/4 buried surface hoar layer. Forecaster
03/27/2016 - 12:00
Snowpack Observation 		Lincoln Ridge
Yuba Pass Area 		Forecaster
03/27/2017 - 10:30
Snowpack Observation 		Lincoln Ridge
Yuba Pass Area 		Sunny skies in the Yuba Pass area with signs of rapid warming becoming evident at 9:45 am.Kicking small cornince sections on NE aspect at treeline at 7,800' produced no results on wind loaded slope below.Signs of rapid warming/wet snow instability on SE aspect test slope at 7,800' at 10:50 am. Forecaster

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