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
03/21/2021 - 12:45
Snowpack Observation 		Castle Peak
Donner Summit Area 		Wet snow sluff on an E facing test slope at 1 pm. NE winds blowing snow over the ridge on Castle Peak. Large cornices above a wind-loaded NE facing slope between Castle Peak and Frog Lake Cliffs Blowing snow, raised and scoured tracks, and large cornices on the N side of Castle Peak Forecaster
03/21/2021 - 12:00
Avalanche Observation 		Indian Valley
Ebbetts Pass Area 		Professional Observer
03/21/2021 - 11:00
Avalanche Observation 		Upper Flume creek Sierra Buttes
Outside of the Forecast Area 		Public
03/21/2021 - 11:00
Avalanche Observation 		Bronco Chutes
Mount Rose Area 		Public
03/21/2021 - 10:00
Snowpack Observation 		Red Lake Peak
Carson Pass Area 		Cracking in freshly formed wind slab on SW gully feature Reverse skin track possibly from yesterday on an exposed, cold, windy ridge Large 8mm surface hoar was widespread near the summit of Red Lake Peak. Strong E wind visibly blowing snow over the ridge Consistent CT RP results about 10 cms down from the surface. This is within the recent storm snow. Two ECTs and two ECTNs showing similar results to the CTs but no propagation. Skier triggered slide from yesterday in main gully. This is a frequent slide and the debris ran nearly the full length. Impressively wide avalanche that was reported yesterday. Another previous slide that appeared to be from yesterday or earlier on a more south facing slope where it appeared a cornice break triggered a wind slab below. Professional Observer
03/20/2021 - 16:00
Avalanche Observation 		Tragedy springs
Carson Pass Area 		Public
03/20/2021 - 15:18
Avalanche Observation 		Hiram Peak
Ebbetts Pass Area 		Public
03/20/2021 - 15:00
Avalanche Observation 		Donner Peak
Donner Summit Area 		A wind slab avalnache on Donner Peak seen from I80 on 3/21/21 Forecaster
03/20/2021 - 12:50
Avalanche Observation 		Frog Lake Cliffs
Donner Summit Area 		The torn up snow is where the victim parked their snowmobile. The footprints lead to the edge where the cornice broke. Overview of the slope the victim fell down. The arrow is where the person broke the cornice. Side view of upper part of the slope. The cornice that broke and the crown of the slab avalanche the cornice failure triggered. Overview of the slope. There is a helicopter about halfway up the slope on the right side for scale. The upper part of the slope. The lower part of the slope where the victim was found. Forecaster
03/20/2021 - 12:45
Avalanche Observation 		Red Lake Peak
Carson Pass Area 		Public
03/20/2021 - 12:15
Avalanche Observation 		above Meiss meadow
Carson Pass Area 		Overview of incident; crown, chute, entrance slide path, cliff hidden in pic 1, crowns runout, debris Public
03/20/2021 - 12:00
Snowpack Observation 		Hungalelti Ridge
Carson Pass Area 		Professional Observer
03/20/2021 - 11:30
Snowpack Observation 		Rubicon Peak
West Shore Area 		Breakable rain crust at 6,900' under 1 inch of new snow. Buried March 18 rain crust at 7,900'. One small loose wet avalanche seen on E face of Crag Pk at 11:30 am. It was not there at 10 am. A mix of sun and cloud cover during the morning hours. Forecaster
03/20/2021 - 10:33
Avalanche Observation 		Red Lake Peak
Carson Pass Area 		Public
03/20/2021 - 09:00
Avalanche Observation 		Shirley Canyon
Cabin Creek, Deep Creek, or Pole Creek Area 		Guide
Alpenglow Expeditio

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