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 button above.
Date and time of observation or avalanche occurrence Location Region Observation Type Photos Snowpack, Avalanche, Weather Videos Snowpit videos (tests, etc) Observation made by
02/10/2020 - 12:30 N. aspect Incline lake Peak Mount Rose Area Snowpack Observation CTM SP @ 17cm down Near surface facets from CTM SP @ 17cm down Public
01/26/2020 - 12:30 Round Top Carson Pass Area Snowpack Observation stability test location on round top Public
02/16/2020 - 09:00 Tamarack peak east side Mount Rose Area Snowpack Observation Public
12/23/2019 - 14:15 Rubicon West Shore Area Snowpack Observation Variation in snow density within the 12 inches of new snow Very minimal cracking within the new snow near the Rubicon summit. Public
04/05/2020 - 16:00 Trestle Peak Donner Summit Area Avalanche Observation

LakeView_Snow Pit 4.5.20

03/16/2020 - 11:30 Jakes peak West Shore Area Avalanche Observation Public
01/18/2020 - 10:00 south of echo peak east trees Echo Summit Area Avalanche Observation Public
03/22/2020 - 11:30 Incline Peak Mount Rose Area Avalanche Observation Small wet loose slide, south face of Incline Peak, around 4pm Surface hoar on an east aspect of Incline Peak, around 10am Public
12/09/2019 - 11:00 Jake's Peak West Shore Area Snowpack Observation Public
01/19/2020 - 11:00 Chickadee Ridge Mount Rose Area Snowpack Observation Public
03/03/2020 - 14:30 Castle Peak Donner Summit Area Snowpack Observation Castle Pass and Castle Peak South face of Castle Peak with areas of newer wind-deposited snow. Ski pole penetration on NW-facing slope. Public
01/12/2020 - 13:15 Johnson Canyon Donner Summit Area Avalanche Observation Public
03/28/2020 - 10:30 NE-facing slope Mt Rose Mount Rose Area Snowpack Observation Public
03/08/2020 - 13:00 Slide mountain Mount Rose Area Snowpack Observation Variable melt freeze crust Rime at upper elevations Public
12/01/2019 - 13:00 Incline lake Mount Rose Area Snowpack Observation Public


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