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
12/29/2021 - 11:00
Snowpack Observation 		Incline Peak
Mount Rose Area 		Kicking off cornice on test slope triggered small D1 wind slab avalanche with a 2" crown Kicking off cornice on test slope triggered small D1 wind slab avalanche with a 2" crown Naturally occurring cracks within the new storm snow on a convex rollover (trigger point) Skin track refilled after a few hours out Guide
Alpenglow Expeditio
12/28/2021 - 14:30
Snowpack Observation 		Armstrong Connector
Luther Pass Area (including Job and Freel) 		Small roller balls from afternoon warming on W aspect Multiple greyish layers all throughout the snowpack in the Caldor burn zone Public
12/28/2021 - 12:00
Snowpack Observation 		Hidden Peak
West Shore Area 		Settlement cones around trees indicating consolidation in the new snow. Wind textures and drifts near the summit of Hidden Peak ECTN on a wind-loaded test slope near the summit of Hidden Peak Ski cuts and kicks on wind loaded test slopes near the summit of Hidden Peak would triggere small cornice failures, but they did not produce any signs of instability on the slopes below. Wind affected snow surfaces existed in some open below treeline areas as well. Forecaster
12/28/2021 - 12:00
Snowpack Observation 		Silver Peak
Cabin Creek, Deep Creek, or Pole Creek Area 		Looking up towards Silver Peak Small avalanche in trees (center photo) partially covered by blowing snow Wind textured snow downslope off of ridge on N aspects from W winds Wind scouring on ridge back to previous rain crust Forecaster
12/28/2021 - 11:00
Snowpack Observation 		N of Incline Village below Rose Knob
Mount Rose Area 		Public
12/27/2021 - 14:47
Snowpack Observation 		Cowboy Hat
Luther Pass Area (including Job and Freel) 		Break in the weather late in the day. Variable wind slab thicknesses and densities 4f-1F-P. Planar releases of wind slabs. Large shooting crack, this is deeper than it looks. Waist deep skin track. Widow makers in the Caldor burn area. Deeper tree wells starting to form. Wind textured surfaces below tree line. Professional Observer
12/27/2021 - 13:30
Snowpack Observation 		Silver Peak
Cabin Creek, Deep Creek, or Pole Creek Area 		Thigh to waist deep trail breaking Intense blowing snow in open BLT with wind texture Blowing snow refilling skin track in 30-60 minutes Settlement cones around trees Forecaster
12/27/2021 - 06:20
Avalanche Observation 		thunder cliffs
Sawtooth Ridge to Tahoe City 		Public
12/27/2021 - 05:00
Avalanche Observation 		Hidden Peak - Goat Cliffs
West Shore Area 		Mostly filled-in avalanche crown in the Goat Cliffs area of Hidden Peak. Forecaster
12/26/2021 - 12:00
Snowpack Observation 		Prosser Hill
Little Truckee Summit Areas 		Skin track refill in ~30min. Wind slab development. Strong winds and copious amounts of snow for transport. Public
12/26/2021 - 11:00
Snowpack Observation 		Kingsbury/Spooner
East Shore Area 		Professional Observer
12/25/2021 - 12:00
Snowpack Observation 		Powderhouse
Luther Pass Area (including Job and Freel) 		Textured snow surface from snow falling off trees Evidence of snow settlement Fully scoured windward ridge aspect Cracking on a wind loaded test slope Nearly filled in skin track Professional Observer
12/24/2021 - 13:33
Snowpack Observation 		Spooner Summit
East Shore Area 		Public
12/24/2021 - 12:00
Snowpack Observation 		Border Ruffian
Carson Pass Area 		Professional Observer
12/24/2021 - 10:30
Avalanche Observation 		Flower Ridge, Mt. Judah
Donner Summit Area 		First easy cornice collapse, just feet from the parking lot. Propagating wind slab failure on one of the many test slopes along our approach. Open creek at 7,200' with an impressive flow following the Dec 22 rain event. Public

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