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
ridge between Koenig and Leavitt BWRA Snowpack Observation 01/11/2018 - 13:15 Professional Observer
Leavitt Lake area BWRA Snowpack Observation 01/10/2018 - 14:00 Professional Observer
Repeat Offender BWRA Avalanche Observation 01/09/2018 - 13:37 LCM Avalanche Specialist
Sardine Falls BWRA Snowpack Observation 01/07/2018 - 14:00 Professional Observer
Virginia Lakes Other Area Avalanche Observation 01/06/2018 - 13:13 Virginia Lakes Avalanche Specialist
Sardine Meadows BWRA Snowpack Observation 01/06/2018 - 12:00 Professional Observer
Treeline near Koenig Lake BWRA Snowpack Observation 01/04/2018 - 14:00 Professional Observer
Hwy 108, below pass BWRA Snowpack Observation 12/30/2017 - 13:00 Professional Observer
Above PCT motorized crossing BWRA Avalanche Observation 12/30/2017 - 11:21 Avalanche Specialist
Sardine Meadow/Hwy 108 BWRA Snowpack Observation 12/28/2017 - 15:00 Professional Observer
Leavit Lake BWRA Snowpack Observation 12/18/2017 - 12:51 Professional Observer
Above Leavitt Creek BWRA Snowpack Observation 04/28/2017 - 15:00 Thickness Delicate Decomposition Avalanche Specialist
Pacific Crest Trail @ Sonora BWRA Snowpack Observation 04/22/2017 - 13:15 Leavitt Cirque PCT Pit Leavitt Cirque Above Sardine Falls Weekend Parking Avalanche Specialist
Widespread Avalanche Acvtivity BWRA Avalanche Observation 04/19/2017 - 10:10 Avalanche Specialist
After Avalanche Investigation @ Leavitt Creek BWRA Snowpack Observation 04/16/2017 - 12:30 Graupel Layer Leavitt Crk Avalanche Investigation Leavitt Crk Avalanche Investigation Leavitt Crk Avalanche Investigation Leavitt Crk Avalanche Investigation Avalanche Specialist


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