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 Snowpack, Avalanche, Weather Images Observation made by
12/15/2022 - 13:00
Snowpack Observation 		Castle Peak
Donner Summit Area 		Scouring along the NE side of the ridgetop by NE winds. Minor amounts of drifting snow over the ridgetop. A large natural cornice collapse from during the last storm. Looked like an avalanche at first glance, but no flanks or avalanche debris, only cornice chunks. Forecaster
12/15/2022 - 12:00
Snowpack Observation 		Schoolhouse Canyon
East Shore Area 		Professional Observer
12/15/2022 - 12:00
Snowpack Observation 		Mt. Judah
Donner Summit Area 		Wind scouring on Judah ridge near radio towers. Previous skin track refill What was left of the low level fog blowing west in the early afternoon Guide
Tahoe Mountain School
12/15/2022 - 11:25
Snowpack Observation 		North Mt. Lola
Little Truckee Summit Areas 		Public
12/14/2022 - 14:00
Snowpack Observation 		Relay Peak
Mount Rose Area

Relay Peak PST

 Guide
Alpenglow Expeditions
12/14/2022 - 13:00
Snowpack Observation 		Elephant's Hump
Carson Pass Area 		Impressive large surface hoar widespread above Red Lake. Close up of surface hoar Even more surface hoar Deep snowpack and more surface hoar Deep snowpit and Deep Tap test before Deep Tap test after DT 21 Looking across Red Lake at the SE slopes of Red Lake Peak Professional Observer
12/14/2022 - 12:00
Snowpack Observation 		Blue Lakes
Carson Pass Area 		Professional Observer
12/14/2022 - 12:00
Snowpack Observation 		Silver Peak
Cabin Creek, Deep Creek, or Pole Creek Area 		Natural avalanche failed on buried surface hoar on Sun Dec 11. Buried surface hoar seen on Dec 14, 6-8m. Location of buried surface hoar in meadow at 7260'. Small roller balls on SE-S aspects with wet surface snow and sun skin developing. Forecaster
12/14/2022 - 11:30
Snowpack Observation 		Old Iron Mountain ski area
Outside of the Forecast Area 		Public
12/14/2022 - 10:29
Snowpack Observation 		Relay Peak
Mount Rose Area 		Wind texture from E winds Snowmobile tracks on N aspect with no obvious instabilities Pinwheels on SW aspect near 9,400’ at 15:30 More wind scouring Public
12/13/2022 - 23:22
Snowpack Observation 		Donner Summit / Judah
Donner Summit Area 		Educator
Blackbird Mountain Guides
12/13/2022 - 16:30
Snowpack Observation 		Spooner Summit
East Shore Area 		Public
12/13/2022 - 12:30
Snowpack Observation 		Tamarack Peak
Mount Rose Area 		Forecaster
12/13/2022 - 12:00
Snowpack Observation 		South Camp Peak
East Shore Area 		Professional Observer
12/13/2022 - 11:00
Snowpack Observation 		Red Lake Peak
Carson Pass Area 		Crowns from recent avalanche activity run wider than this photo captures. More crowns run across most of this upper slope. Large abundant surface hoar above about 8400 feet. Professional Observer
12/13/2022 - 10:52
Snowpack Observation 		Sunrise Bowl
Donner Summit Area 		Public
12/12/2022 - 12:00
Avalanche Observation 		Red Lake Peak
Carson Pass Area 		Public
12/12/2022 - 12:00
Snowpack Observation 		Rubicon Peak
West Shore Area 		Hard to see old filled in crown line below Crag Peak, North aspect. Settlement cones forming around trees. Forecaster
12/12/2022 - 09:10
Snowpack Observation 		The Bear Scratch
East Shore Area 		Guide
Tahoe Mountain School
12/12/2022 - 04:00
Avalanche Observation 		Castle Peak
Donner Summit Area 		Several old crowns on this slope. Zoom in on one of the mid-slope corwns. Forecaster

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