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
04/16/2022 - 11:00

Snowpack Observation
Grouse Rock

Blackwood Canyon or Ward Canyon Area
Poor visibility in near treeline terrain above 8200' with snow and strong SW winds. Small wind loaded test slopes had small shooting cracks, but little in propagation. Wet heavy snow with small roller balls starting by late morning. Forecaster
04/15/2022 - 13:30

Avalanche Observation
Donner Peak

Donner Summit Area
Forecaster
04/15/2022 - 13:15

Avalanche Observation
Andesite Peak

Donner Summit Area
Public
04/15/2022 - 12:00

Snowpack Observation
Castle Peak & Andesite Peak

Donner Summit Area
Pinwheels were easy to initiate on E aspect terrain after about 12:15 pm. ECTN at the noted lat/long, a NW aspect, near treeline, at 8,800'. 70 cm of recent storm snow above the melt-freeze crust. HS 300cm Newly formed, small cornices near treeline. Recent strom snow from the past 5 days ranged from 27 to 30 inches along the Castle Rd in several hand pits between 7,400' and 7,800'. Forecaster
04/14/2022 - 13:00

Snowpack Observation
Elephant's Back

Carson Pass Area
Professional Observer
04/14/2022 - 10:35

Snowpack Observation
Northeast flank of Mt. Judah

Donner Summit Area
Ski kick on Flower Ridge Public
04/13/2022 - 14:00

Snowpack Observation
Rubicon

West Shore Area
Public
04/13/2022 - 12:30

Snowpack Observation
Tamarack Peak

Mount Rose Area
Small roller balls on an E aspect at noon. Cracks around a very small wind crust Bushes are still exposed on S aspects. Skies were partly cloudy for most of the day. Lenticular clouds indicating increased winds. Forecaster
04/12/2022 - 16:00

Snowpack Observation
The Nipple

Carson Pass Area
Professional Observer
04/12/2022 - 11:33

Snowpack Observation
Round Top

Carson Pass Area
4" of new snow @ 8500' Variable conditions of wind scoured and powder surfaces. Graupel layer exposed from wind erosion. ~30cms of new snow @ 9000' New/old snow interface seems to be bonding. Snow coverage on Round Top. Graupel and preserved stellars about 35cms down. Professional Observer
04/12/2022 - 11:30

Snowpack Observation
Andesite Peak

Donner Summit Area
Strong sun made the new snow wet enough for a ski cut to cause the wet new snow to slide down this small SE-facing test slope @ ~7600 ft at 11:30 am. ECTN results on a wind-loaded test slope. A ski kick caused this previously undercut wind-loaded test slope to crack. Slopes that had not been undercut did not crack. Forecaster
04/11/2022 - 17:00

Snowpack Observation
Frog Lake Ridge

Carson Pass Area
Professional Observer
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
04/10/2022 - 12:00

Snowpack Observation
Red Lake Peak

Carson Pass Area
Professional Observer
04/10/2022 - 10:00

Snowpack Observation
Andesite Peak

Donner Summit Area
Ridges and sunny aspects melted out limiting terrain options. By mid morning cloud cover started to decrease with more solar radiation. Treed areas littered with down trees, branches, pine needles, etc. Trailhead melting out near the gate. Forecaster

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