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
12/28/2010 - 23:05
Snowpack Observation 		Lincoln Ridge
Yuba Pass Area 		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
01/26/2013 - 11:25
Snowpack Observation 		Fireplug
Yuba Pass Area 		Forecaster
01/28/2017 - 12:00
Snowpack Observation 		Lincoln Ridge
Yuba Pass Area 		Surface hoar near a creekLarge cornice pieces dropped onto a test slopeScoured surfaces along the ridgeline @ 7680 ft.Settlement cracks around trees Forecaster
02/08/2011 - 11:00
Snowpack Observation 		Lincoln Ridge
Yuba Pass Area 		Forecaster
02/21/2023 - 13:00
Snowpack Observation 		Peak 7932'
Yuba Pass Area 		Increasing clouds through the morning with snow starting in the early afternoon. Thin breakable crusts on low angle Northerly terrain. Previous buried graupel layer found unreactive in this area. Forecaster
12/30/2016 - 12:00
Snowpack Observation 		Lincoln Ridge
Yuba Pass Area 		Forecaster
04/19/2023 - 12:00
Snowpack Observation 		Lincoln Ridge
Yuba Pass Area 		A weak sun crust had formed on the surface in sun-exposed areas. Ski kicks on wind-loaded test slopes did not produce wind slab failures only small sluffs of new snow. Large cornices still exist along Lincoln Ridge. Debris from old cornice collapses is visible on the slope below. The wind had exposed firm melt-freeze crusts on the ridges. Forecaster
12/06/2020 - 10:45
Snowpack Observation 		Lincoln Ridge
Yuba Pass Area 		Wind scoured ridgetops with solar aspect melt to bare ground at 7,800'. Pit location on N aspect at 7,729. Well developed, dry and loose near surface facets from a hand pit. Good snowcover on the roads with loose cold snow for good machine cooling above 7,000'. Forecaster
02/04/2013 - 12:15
Snowpack Observation 		Lincoln Ridge
Yuba Pass Area 		Forecaster
03/08/2022 - 10:30
Snowpack Observation 		LIncoln Ridge
Yuba Pass Area 		Ski kicks triggered a small cornice failure above a N-facing wind-loaded test slope. ECTN on the facets below the recent snow. Surface hoar on wind protected slopes. Wind scoured areas along exposed ridges Wind scouring on a previously loaded NE facing slope. Clouds obscured the sun and slowed down warming during the morning. The sun broke through the clouds in this area around noon. 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
01/25/2020 - 11:00
Snowpack Observation 		Lincoln Valley
Yuba Pass Area 		A rain crust existed on the surface on all aspects and elevations in this area. Ski penetration through melted rain crust. Forecaster
11/08/2017 - 11:15
Snowpack Observation 		Lincoln Ridge
Yuba Pass Area 		Snowpit location with 50cm snow depth, some previous wind loading.Snowcover of about 14 inches at about 7,350'FS Rd 12 at 6,900'. Rd plowed for logging operations. Forecaster
12/22/2020 - 10:30
Snowpack Observation 		Lincoln Ridge
Yuba Pass Area 		Snow surface evidence of recent wind drifting (left to right). Skier triggered cracking near the edge of the wind slab adjacent to cornice. Mini fridge size cornice sections dropped onto wind slab without results. Forecaster

Pages