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
01/27/2020 - 02:00 Meiss Meadow Carson Pass Area Snowpack Observation Public
02/27/2020 - 16:00 Tamarak Peak Mount Rose Area Snowpack Observation Large, relatively wet, icy grains found on the surface of an east/southeast facing slope in a relatively open area below treeline. Hard, unbreakable crust in a shady flat area. Uneven sun sculpted snow on a southeast facing slope near treeline. Snow surface here was composed of roughly hand-sized icy "fins" that extended about 1-3 inches above snow surface. Dry, sugary snow on a well-protect north facing slope near treeline. A thin (0.5 in) weak crust was on the surface. Public
03/14/2020 - 14:30 Contention Ridge Donner Summit Area Avalanche Observation Crown Crown Public
12/26/2019 - 10:30 Blue Lakes Carson Pass Area Snowpack Observation Public
03/28/2020 - 11:30 Tallac Summit Snowfield Desolation Wilderness Area (including Emerald Bay) Snowpack Observation Public
01/01/2020 - 10:30 Galena Peak Mount Rose Area Snowpack Observation Pinwheels near the road cut Rollerballs off ski track Public
02/02/2020 - 10:00 Incline peak Mount Rose Area Snowpack Observation Public
12/28/2019 - 12:30 Thompson Peak Luther Pass Area (including Job and Freel) Snowpack Observation Small Surface Hoar and Near Surface Facets Older and larger Surface Hoar that had been previously knocked over Hand hardness indicated a right side up snowpack with about 20 cms of NSFs at the surface Public
01/19/2020 - 14:15 White Rock Lake Area Independence Lake Area Snowpack Observation Test slope picture Public
03/08/2020 - 09:00 Tragedy springs Snowpack Observation Public
12/15/2019 - 12:00 Stevens Peak Carson Pass Area Snowpack Observation wind effected snow below ridgelines wind effected snow Public
03/25/2020 - 16:30 Munchkins Zone Five Lakes Area Avalanche Observation Public
01/26/2020 - 12:30 Roundtop Carson Pass Area Snowpack Observation Public
03/27/2020 - 12:00 Little Truckee Summit Independence Lake Area Snowpack Observation Roller balls from snow disturbed by snowmobiles Some wind scouring Public
01/17/2020 - 14:00 Boulevard Carson Pass Area Avalanche Observation Public


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