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. BAC 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 snowpit 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 two apps - SnowPilot and AvyLab - to create the snowpit graphs. These apps are available as downloads: click here for the free SnowPilot download; for AvyLab, visit Apple's AppStore or the AvyLab website

Location Region Observation Type Date and time of observation or avalanche occurrencesort ascending Avalanche observation video Avalanche photos Snowpit videos (tests, etc) Snowpack photos Snowpit or crown profile photo or graph Observation made by
Stanislaus Wall BWRA Avalanche Observation 12/16/2018 - 02:33 Avalanche Specialist
Leavitt Creek BWRA Snowpack Observation 12/14/2018 - 13:30 Avalanche Specialist
Dunderberg Peak Other Area Snowpack Observation 12/13/2018 - 15:20 Dunderberg Avalanche Specialist
Sardine Gulch- Loose Wet BWRA Avalanche Observation 04/27/2018 - 14:22 Avalanche Specialist
BWRA Alpine Avalanche Observation 04/21/2018 - 13:35 Avalanche Specialist
Voodoo Bowl BWRA Avalanche Observation 04/20/2018 - 13:23 Avalanche Specialist
Leavitt Cirque BWRA Avalanche Observation 04/17/2018 - 14:02 Avalanche Specialist
Deadman Creek BWRA Snowpack Observation 04/16/2018 - 14:04 3-4mm Graupel New snow @ Sonora Snotel Graupel & Rime 25cm deep Avalanche Specialist
Wet Slabs around the BWRA BWRA Avalanche Observation 04/08/2018 - 03:18 Avalanche Specialist
Ski Lake Drainage BWRA Snowpack Observation 04/03/2018 - 14:02 Avalanche Specialist
Koenig Lake BWRA Avalanche Observation 04/02/2018 - 11:48 Avalanche Specialist
Leavitt Cirque BWRA Avalanche Observation 03/29/2018 - 14:12 Avalanche Specialist
Skier Triggered Wind Slab @ Sonora Pass BWRA Avalanche Observation 03/25/2018 - 13:00 Professional Observer
Leavitt Region BWRA Avalanche Observation 03/23/2018 - 13:31 Avalanche Specialist
Sonora Pass Avalanche BWRA Avalanche Observation 03/19/2018 - 12:52 SW of Sonora Pass Below PCT Avalanche Specialist


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