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
01/22/2019 - 09:15 The 11s - Trimmer Peak Snowpack Observation Graupel on the surface of my skis Graupel can be seen piled up by the wind on an exposed ridge E-NE wind transporting snow over the false summit of Trimmer Peak Minor settlement found around some trees Cracking of windslabs was isolated and small Public
02/24/2019 - 01:45 Galena Creek Mount Rose Area Snowpack Observation Public
01/30/2019 - 15:00 Rose Knob Mount Rose Area Snowpack Observation Public
03/17/2019 - 14:45 Donner Lake Run above Conifer Drive Donner Summit Area Avalanche Observation Public
01/13/2019 - 13:30 East of Grouse Rock Blackwood Canyon or Ward Canyon Area Avalanche Observation Crown of a slide on north facing slope Public
12/01/2018 - 12:30 Tamarack peak East aspact at 9800' Mount Rose Area Snowpack Observation Public
03/04/2019 - 11:00 Red lk pk Carson Pass Area Avalanche Observation Public
03/23/2019 - 12:15 Plavada Outside of the Forecast Area Avalanche Observation Skier triggered loose wet on a steeper rollover. Loose wet failure on a test slope Public
01/16/2019 - 11:30 Below Scott Peak Blackwood Canyon or Ward Canyon Area Snowpack Observation Surface hoar buried under 65cm of new snow Surface hoar grains removed from bottom of slab on ECTP6 Public
02/19/2019 - 13:45 Trimmer Peak Luther Pass Area (including Job and Freel) Snowpack Observation Public
12/04/2018 - 03:00 Thunder Saddle Carson Pass Area Snowpack Observation Public
03/08/2019 - 12:30 Andesite Ridge Donner Summit Area Snowpack Observation Public
03/24/2019 - 13:00 Kettle Peak Outside of the Forecast Area Avalanche Observation Public
01/20/2019 - 02:30 ASI windlip Donner Summit Area Snowpack Observation Public
02/23/2019 - 12:15 Herlan Peak East Shore Area Snowpack Observation Public


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