Please remember that these observations indicate what was going on in the snowpack at a single point in time and space. They may not represent conditions where you are or where you plan to be. They also come from a variety of sources. SAC cannot vouch for the quality or accuracy of any observations that come from the general public. Some of these may be professional quality observations; some may not. Please use observations listed on this page as part of your information gathering process, but as always don't make decisions based on a single piece of information.

If you are looking for more information on how to understand the information on this page, all of the pit data graphs and stability tests are part of what is presented in a Level II avalanche class that follows the American Avalanche Association (AAA) or American Institute for Avalanche Research and Education (AIARE) curriculum guidelines. All of the coding and abbreviations for data presented follows the publication Snow, Weather, and Avalanches: Observational Guidelines for Avalanche Programs in the United States (SWAG) which is the standard for all professional avalanche programs in the US. An electronic copy is available here. Most of what you are looking for is in Chapter 2 and Appendix F part 1. We use a program called SnowPilot to create the snowpit graphs. It is available as an online tool or as a downloadable program at http://www.snowpilot.org/. This website also has a quick video and user guide on how to use create snowpits. Please send us your observations using the buttons below.

Date and time of observation or avalanche occurrence Location Region Observation Type Photos Videos Observation made by
11/27/2017 - 12:00 Tamarack Peak Mount Rose Area Snowpack Observation East Ridge of Tamarack Peak.  Some scouring of previously wind loaded terrain.  Ski kicks on small test slopes had limited results with new snow. Forecaster
03/17/2016 - 14:00 Mt. Judah Donner Summit Area Snowpack Observation Forecaster
01/26/2018 - 12:30 Silver Peak Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation Loose dry sluff triggered by a ski cut on a steep below treeline test slope. N aspect 7700 ft.Small cracking on a wind-loaded test slope along the ridge. NE aspect 8100 ft. Forecaster
02/25/2016 - 12:00 Angora Echo Summit Area Snowpack Observation Forecaster
02/27/2017 - 09:00 Peak 9269' West Shore Area Avalanche Observation
E to SE aspect, 9.000'
Skin track barely visible exiting upper climbers right just below crown.
Skin track barely visible exiting upper climbers right just below crown.
Debris piles.
Forecaster
11/08/2016 - 12:00 Silver Peak Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation Forecaster
12/09/2017 - 12:00 Relay Peak Mount Rose Area Snowpack Observation E face of Relay Peak, 10,200'.  Wind scoured by the recent NE/E winds.NW/W bowls of Relay Peak.  Wind scoured in areas and wind loaded in areas with hard slabs.2' of cohesive hard slab P to K hard.  F hard facets below.  CTM-12 SC on facet layer.ECTPV.  292 degree W/NW slope, 19 degree slope angle. Forecaster
03/29/2016 - 12:00 Blue Lakes Carson Pass Area Snowpack Observation Forecaster
02/01/2016 - 13:00 Carpenter Peak Independence Lake Area Snowpack Observation Forecaster
04/04/2017 - 11:45 Castle Peak Donner Summit Area Snowpack Observation Deep holes down to flowing creeks1 to 2 inches of corn snow on top of a supportable melt-freeze crust on a SW aspect at 8200 ft. around 11:45 amAnkle deep wet snow on a SW aspect around 7600 ft. around noonWidespread cloud cover looking south from Castle Peak around 11:40 amSunny skies looking north from Castle Peak around 11:40 am Forecaster
12/16/2017 - 12:30 Incline Lake Peak/Slab Cliffs Mount Rose Area Snowpack Observation Strong to Gale force NE winds moving minimal amounts of snow to S side of ridgeline.Small cracking just off ridgeline from minor wind loading on S aspects. Forecaster
12/12/2015 - 10:20 Horse Canyon Bear Valley Area Snowpack Observation Forecaster
02/19/2016 - 13:51 Andesite Ridge Donner Summit Area Avalanche Observation
Forecaster
02/24/2017 - 12:00 Ophir Peak Mount Rose Area Snowpack Observation Current wind effect from SW/W winds.Small new wind slabs were forming on N-NE-E aspects near summit ridge.Small localized cracking from recent wind deposits on N-NE aspects near peak. Forecaster
04/09/2016 - 11:00 Becker Ridge Echo Summit Area Snowpack Observation Forecaster

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