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
12/13/2020 - 13:00
Avalanche Observation 		Lincoln Ridge
Yuba Pass Area 		Small ski-kick-triggered wind slab avalanches on a wind loaded test slope The wind slab was about 8 to 12 inches thick Shooting cracks in wind loaded terrain 1f wind slab on top of a thin crust on top of 4f- old near surface facets Wind scoured areas along the ridge line Forecaster
11/29/2016 - 11:00
Snowpack Observation 		Lincoln Ridge
Yuba Pass Area 		Forecaster
01/04/2022 - 05:00
Avalanche Observation 		Lincoln Ridge
Yuba Pass Area 		Natural wind slab avalanche triggered by cornice collapse Large cornices forming along Lincoln Ridge Forecaster
01/26/2014 - 13:20
Snowpack Observation 		Lincoln Ridge
Yuba Pass Area 		Forecaster
02/04/2013 - 12:15
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
04/03/2020 - 11:00
Snowpack Observation 		Lincoln Ridge
Yuba Pass Area 		Firm icy surfaces were widespread, especially on ridges and north facing slopes Buried surface hoar layer. Snowpit tests and general observations indicated that it had gained strength. Forecaster
01/28/2023 - 10:30
Snowpack Observation 		Lincoln Ridge
Yuba Pass Area 		Large SH in areas adjacent to the FS 12 Rd. Large SH in areas adjacent to the FS 12 Rd. Knocked down and slightly melted SH along the ridgetop near 7,600'. NE aspect avalanche terrain near 7,600' with widespread knocked over, slightly melted 8 to 10 mm SH. 8 to 10 mm SH knocked over, no longer upright in NE aspect avalanche terrain near 7,600'. Forecaster
03/20/2012 - 12:30
Snowpack Observation 		Lincoln Ridge
Yuba Pass Area 		Forecaster
04/11/2022 - 13:00
Snowpack Observation 		Lincoln Ridge
Yuba Pass Area 		Poor bonding between the new snow and the icy crusts below it. Skier triggered shooting cracks on a wind-loaded test slope. Ripples in the snow surface. My 3 in deep skin track filled in in about 1.5 hours. The new snow barely covers obstacles on S-SW aspects. 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
01/02/2014 - 13:40
Snowpack Observation 		Lincoln Ridge
Yuba Pass Area 		Forecaster
04/14/2020 - 12:00
Snowpack Observation 		Lincoln Ridge
Yuba Pass Area 		Strong and thick mf crust on the surface with some wet snow below on top of the buried surface hoar layer. Previous loose wet roller balls and cornice collapses. Forecaster
03/28/2023 - 11:30
Avalanche Observation 		Lincoln Ridge
Yuba Pass Area 		Small reactive wind slab failures. Small reactive wind slab failures on test slopes. Small wind slab avalanche on small slope near ridgeline. Intense blowing snow in near treeline terrain. Cracking around skis on uptrack showing storm slab instability. ECTN on layers down to the March 14 rain layer. Forecaster
01/06/2011 - 11:00
Snowpack Observation 		Lincoln Ridge
Yuba Pass Area 		Forecaster

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