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 descending Avalanche observation video Avalanche photos Snowpit videos (tests, etc) Snowpack photos Snowpit or crown profile photo or graph Observation made by
PCT Crossing - Sonora Pass BWRA Snowpack Observation 12/27/2016 - 15:00 Avalanche Specialist
Above Sonora Pass, near PCT BWRA Snowpack Observation 12/29/2016 - 15:00 Surface Hoar Old Avalanche Crown Sun Crust Avalanche Specialist
Voodoo Bowl Avalanche BWRA Avalanche Observation 01/04/2017 - 12:00 Avalanche Specialist
Leavitt Lake Rd Junction BWRA Snowpack Observation 01/04/2017 - 13:00 Avalanche Specialist
BWRA BWRA Snowpack Observation 01/07/2017 - 13:02 Cornice broke tail end of last storm naturally. Elastic Deformation Cornice breaks with a mans weight at 12/15 faceted old snow interface Cornice failure propagates around rock Professional Observer
Above Leavitt Lake Rd BWRA Avalanche Observation 01/08/2017 - 01:25 Professional Observer
Lower Leavitt Lake Road Avalanche BWRA Avalanche Observation 01/09/2017 - 17:00 Avalanche Specialist
Leavitt Lake Road BWRA Snowpack Observation 01/10/2017 - 12:00 Avalanche Specialist
Hwy 108 - People's Gate to Leavitt Meadows BWRA Snowpack Observation 01/12/2017 - 12:00 Avalanche Specialist
Above Leavitt Lake BWRA Snowpack Observation 01/14/2017 - 12:00 Avalanche Specialist
Above Koenig Lake BWRA Snowpack Observation 01/17/2017 - 12:30 Avalanche Specialist
Lower Leavitt Lake Road BWRA Snowpack Observation 01/19/2017 - 13:00 Avalanche Specialist
Hwy 108 to Sardine Meadows and Leavitt Lake Rd BWRA Snowpack Observation 01/21/2017 - 13:00 Avalanche Specialist
BWRA BWRA Snowpack Observation 01/24/2017 - 12:00 Avalanche Specialist
SW above Leavitt Lake BWRA Snowpack Observation 01/25/2017 - 13:00 Avalanche Specialist


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