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
04/01/2023 - 15:21
Snowpack Observation 		Johnson Canyon
Donner Summit Area 		Public
03/20/2019 - 12:00
Snowpack Observation 		Tamarack Peak
Mount Rose Area 		New snow became sticky when the sun came out with small roller balls. Up to 6'' wind slabs showed minor cracking in the most wind loaded areas. Thick high cloud cover existed throughout the morning hours. Periods of sun with blue skies started around 1pm. Forecaster
04/06/2021 - 11:30
Snowpack Observation 		Relay Peak
Mount Rose Area 		Strong refreeze of the top 9 inches of the snowpack. Several inches of wet snow and tiny roller balls but still ski supportable at 11:30 am on S aspect near 9,500'. Forecaster
12/26/2018 - 14:00
Snowpack Observation 		Munchkins Zone - East Bowl
Blackwood Canyon or Ward Canyon Area 		Looking south down the ridge. Scoured western slopes and small cornices on the eastern slopes Small cornice broke easily after second kick. Cornice break from underneath. Public
03/27/2020 - 12:00
Snowpack Observation 		Squaw Ridge
Carson Pass Area 		Professional Observer
12/02/2022 - 00:50
Avalanche Observation 		Elephants hump zone
Carson Pass Area 		Public
04/08/2023 - 10:50
Snowpack Observation 		Relay Peak
Mount Rose Area 		Natural rollerballs off of rocks on Slab Cliffs, E aspect at around 9,500' at 10:50 am. Natural rollerballs off of trees on far southern Relay Peak, E aspect at around 9,700' at 11:45 am. I ski cut and traversed several wind loaded test slopes today, this was the only one I was able to create a fracture on. Forecaster
03/24/2019 - 10:00
Snowpack Observation 		Tamarack Peak/Fireplug
Mount Rose Area 		loose wet slides on fireplug Public
04/14/2021 - 15:00
Snowpack Observation 		Elephant's Hump Area
Carson Pass Area 		Public
01/02/2019 - 10:00
Snowpack Observation 		Porcupine Ridge
Luther Pass Area (including Job and Freel) 		A thin wind slab over roughly 15cms of very weak NSFs The wind slab varied in thickness and strength, but did show ability to crack. A lot of Surface Hoar in this area. North facing slopes held some impressively large Surface Hoar. Professional Observer
03/29/2020 - 11:00
Snowpack Observation 		E-ridge of Tamarack
Mount Rose Area 		Some cracking in the new snow on top of a firm/MF surface on a S-facing slope Graupel accumulation A quick burst of heavier snowfall; coverage low with rocks/grass poking out in S-facing scoured areas Quick hand pit on a S-facing slope in area with breakable crust. Boot pen through both crusts, ski pen just cracking top crust. Soft, cold snow (F to 4F) above, between, and below the crusts. Public
12/04/2022 - 11:00
Snowpack Observation 		Mt. Lola
Little Truckee Summit Areas 		Guide
West Wind Collecti
04/11/2023 - 11:30
Avalanche Observation 		Johnson Canyon
Donner Summit Area 		Large cornice collapses in Johnson Canyon that happened between yesterday afternoon and this morning. Cracks are visible on the ridge where the rest of the cornice is seperating from the ridgeline. Large cornice collapses in Johnson Canyon that happened between yesterday afternoon and this morning. Water was streaming off the underside of these cornices at 11:30 am today. Large cornice collapses in Johnson Canyon that happened between yesterday afternoon and this morning. Ski kicks above steep slopes triggered wet loose avalanches several inches deep at 11 am. Sinking into shin deep wet snow this morning while standing in a snowmobile track from yesterday. Cloud cover started to increase over the Sierra Crest around noon. Forecaster
03/23/2019 - 14:30
Avalanche Observation 		Mt. Reba
Bear Valley Area 		Public
10/26/2021 - 09:00
Snowpack Observation 		Gold Peak (aka Silver Peak West, aka Pk 8426)
Cabin Creek, Deep Creek, or Pole Creek Area 		Wind effect on ridge above tree line sun crust from 10/25/21 on SE face Deep unconsolidated snow below tree line Snowpit Public

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