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
02/28/2023 - 12:00
Snowpack Observation 		Deer Park
Sawtooth Ridge to Tahoe City 		HS=390cm, HST=170cm at 6520'. Deep trail breaking conditions HST=170cm. Old snow surface melt freeze crust with some weak near crust facets. Around 3''/hour snowfall rates Consistent high intensity snowfall throughout the morning Forecaster
02/27/2023 - 14:58
Avalanche Observation 		Waterhouse
Luther Pass Area (including Job and Freel) 		Public
02/27/2023 - 11:40
Snowpack Observation 		Schallenberger Ridge
Donner Summit Area 		Drifting snow early in the storm, prior to the onset of higher intensity snowfall. Snowfall rates peaking at S10. Small wind slab crack. Small wind slab crack. ECTP-24 on the Feb 21 layer (uppermost of the visible old snow layers). Forecaster
02/27/2023 - 10:00
Snowpack Observation 		Powderhouse
Luther Pass Area (including Job and Freel) 		Not much snow was falling when I arrived around 9:00AM Around 9000' the snow became noticeably shabbier due to increased wind effect. Several of the summit ridge cornices are quite large and some chunks have broken. I kicked the edge of the small side of a smaller wind feature and produced a slide about 15' in front of where I was standing. Looking up at the thin wind slab that I triggered from the ridge on the lookers left. Professional Observer
02/26/2023 - 13:00
Snowpack Observation 		Hell hole
Luther Pass Area (including Job and Freel) 		Wind transport Public
02/26/2023 - 11:30
Snowpack Observation 		Hidden Peak
West Shore Area 		Another skier-triggered wind slab failure on a wind-loaded test slope below the summit in near treeline terrain. A ski cut triggered this wind slab failure on a small wind-loaded test slope near the summit of Hidden Peak. Skier triggered shooting cracks near a wind-loaded test slope at the summit of Hidden Peak. Gale force winds and intense blowing snow made it hard to see more than 10 feet ahead at times. ECTP 30 on the old snow surface at the base of the recent snow in a sheltered area below treeline. Forecaster
02/26/2023 - 11:00
Avalanche Observation 		Angora Peak
Echo Summit Area 		Public
02/26/2023 - 11:00
Snowpack Observation 		Willow Creek/Horse Meadow
Luther Pass Area (including Job and Freel) 		Public
02/26/2023 - 10:54
Snowpack Observation 		Deep Creek
Cabin Creek, Deep Creek, or Pole Creek Area 		Public
02/26/2023 - 10:30
Snowpack Observation 		Lower Trimmer Trees
Luther Pass Area (including Job and Freel) 		Public
02/26/2023 - 10:25
Avalanche Observation 		Cold Stream
Cabin Creek, Deep Creek, or Pole Creek Area 		Public
02/25/2023 - 14:30
Avalanche Observation 		Lower Trimmer Trees
Luther Pass Area (including Job and Freel) 		Ski cut line on the left, crown on the top/right The crown hugged the rock band Can see similar signs of wind affected snow adjacent to the crown Public
02/25/2023 - 14:00
Avalanche Observation 		Donner Canyon
Donner Summit Area 		one of our ECT's, Buried SH layer visible Avalanche crown we suspected was triggered during the day today Buried SH found 77 cm down in the snowpack Educator
Alpenglow Expeditio
02/25/2023 - 13:00
Snowpack Observation 		Highland Lakes, Pacific Valley
Ebbetts Pass Area 		Public
02/25/2023 - 12:43
Snowpack Observation 		Trestle Peak
Donner Summit Area 		Public

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