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
01/22/2020 - 11:00
Snowpack Observation 		Mt. Judah
Donner Summit Area 		Large cornice chunks did not initiate propagation or cracking on slopes below. Wind slab cracking in areas that were undercut. Wind slabs up to 6'' deep. Wind scoured ridges offer no additional snow for wind transport. Mid and high level clouds this morning with increasing periods of sun. Forecaster
01/15/2021 - 11:00
Snowpack Observation 		Castle Peak
Donner Summit Area 		Shallow but manageable snow coverage. Good spring conditions on south side of Castle Below 7600', lots of exposed granite rock. Supportable snow in open areas. Forecaster
01/17/2022 - 12:00
Snowpack Observation 		Round Top
Carson Pass Area 		Round Top with an interesting old avalanche visible in the center of the photo Looking up at variable snow conditions Large wind features along the ridge Thin snow conditions on the south facing portion of the Elephant's Graveyard zone. North facing slopes in Elephant's Graveyard holding much better snow coverage Professional Observer
02/02/2019 - 13:00
Snowpack Observation 		Hope Valley
Carson Pass Area 		Professional Observer
01/20/2023 - 01:18
Snowpack Observation 		Shirley Canyon
Cabin Creek, Deep Creek, or Pole Creek Area 		Highly wind sculpted in areas exposed to wind Guide
Alpenglow Expeditio
01/25/2020 - 13:45
Avalanche Observation 		.4 Miles SE of Mt. Houghton
Mount Rose Area 		WL-AS(?)-R1-D1 from a distance WL-AS(?)-R1-D1 from below Pinwheel with 125cm pole for reference Public
01/23/2021 - 13:30
Snowpack Observation 		Castle Peak - Andesite Ridge
Donner Summit Area 		Guide
Blackbird Mountain Guid
01/22/2022 - 12:30
Snowpack Observation 		Castle Peak
Donner Summit Area 		40cm of snowpack settlement Students ski tips in some soft surface faceted snow Well developed surface hoar Educator
West Wind Collecti
02/05/2019 - 15:00
Snowpack Observation 		Duane Bliss
East Shore Area 		Professional Observer
01/21/2023 - 14:30
Snowpack Observation 		Polaris Bowl
Carson Pass Area 		Public
01/28/2020 - 11:00
Snowpack Observation 		Hidden Peak
West Shore Area 		Wind loading along the upper ridges of Hidden Peak Drifting snow near treeline. Traversing the ridgetop and ski cutting numerous test slopes produced no unstable results. Skin track refill in about 20 min. Forecaster
01/25/2021 - 11:30
Avalanche Observation 		Silver Peak
Donner Summit Area 		Small wind slab avalanche failing on the buried surface hoar. Loose dry running on the buried surface hoar in BTL terrain. Wind slab avalanche seen off of Sierra Crest. Looked to be similar to the small avalanche that we saw failing on the buried surface hoar layer. Forecaster
01/23/2022 - 12:36
Snowpack Observation 		Castle Peak North Bowl
Donner Summit Area 		Surface Hoar Location Snow pit Settlement cone Public
02/08/2019 - 13:00
Snowpack Observation 		Donner Summit
Donner Summit Area 		Educator
Tahoe Mountain Scho
01/24/2023 - 01:23
Snowpack Observation 		Perazzo Meadows Area
Little Truckee Summit Areas 		Public

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