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 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 Snowpack, Avalanche, Weather Videos Snowpit videos (tests, etc) Observation made by
12/01/2019 - 12:00 Proletariat (southern flank of Tamarack) Mount Rose Area Snowpack Observation Public
12/01/2019 - 10:00 West Grouse Blackwood Canyon or Ward Canyon Area Snowpack Observation Public
11/30/2019 - 15:45 Tahoma West Shore Area Snowpack Observation Public
12/05/2019 - 12:00 Grouse Rock West Shore Area Avalanche Observation Public
11/27/2019 - 10:00 Tamarack Peak Mount Rose Area Snowpack Observation Hand pit showing crust and basal facets Public
11/30/2019 - 10:00 Grouse Rock Snowpack Observation Public
12/05/2019 - 11:30 Steven’s Peak Carson Pass Area Avalanche Observation Avalanche pic 1 Avalanche pic 2 Public
12/01/2019 - 13:00 Incline lake Mount Rose Area Snowpack Observation Public
11/28/2019 - 07:30 Donner ridge. Donner Summit Area Snowpack Observation Public
12/03/2019 - 02:00 East Shoulder of Mount Rose Mount Rose Area Snowpack Observation Roller ball activity, SE slope @ 8500' Public


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