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
04/06/2019 - 12:30 Waterhouse Peak Luther Pass Area (including Job and Freel) Avalanche Observation Public
02/17/2019 - 13:00 Herlan Peak East Shore Area Snowpack Observation Public
03/03/2019 - 14:45 Lower Echo Lake Echo Summit Area Avalanche Observation Crown and slide path with ski pole at toe of debris for scale Public
03/21/2019 - 12:00 Tamarack Peak Mount Rose Area Snowpack Observation Very small roller balls on a 20 degree slope. None were observed larger than a billiard ball all day. 15cm of fist hardness storm snow on top of 20cm of 1F snow, under that pencil hardness. ECTN6. New storm snow would fracture at the new/old snow interface, but no propagation occurred. Small cornices at the top of hourglass bowl, NE aspect Public
03/24/2019 - 13:00 East Lincoln Donner Summit Area Avalanche Observation




02/23/2019 - 13:00 Ebbets pass Snowpack Observation Public
01/08/2019 - 09:15 Red Lake Carson Pass Area Snowpack Observation Public
03/28/2019 - 10:15 Rubicon Peak West Shore Area Snowpack Observation Wind affected surface snow Test slope: before Test slope: after Stormy weather and blowing snow looking back toward Desolation at 10:30am Public
01/22/2019 - 22:00 Flagpole Peak Echo Summit Area Avalanche Observation Public
02/11/2019 - 12:30 Tallac Corkscrew Desolation Wilderness Area (including Emerald Bay) Snowpack Observation Public
02/25/2019 - 11:30 Peak 9269 West Shore Area Avalanche Observation Public
03/14/2019 - 11:00 Northern face of Jobs Sister Luther Pass Area (including Job and Freel) Avalanche Observation Public
01/11/2019 - 10:30 Bronco Chutes Mount Rose Area Snowpack Observation Public
02/15/2019 - 14:45 Old Lincoln road. Donner Summit Area Snowpack Observation Public
12/04/2018 - 11:15 Broken Glass Mount Rose Area Snowpack Observation Public


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