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 Regionsort descending Observation Type Date and time of observation or avalanche occurrence Avalanche observation video Avalanche photos Snowpit videos (tests, etc) Snowpack photos Snowpit or crown profile photo or graph Observation made by
108 Lap BWRA Snowpack Observation 02/16/2019 - 12:27 Avalanche Specialist
BWRA BWRA Snowpack Observation 03/29/2017 - 12:00 Avalanche Specialist
Cornice Fall Below Latopie Lake BWRA Avalanche Observation 04/08/2017 - 16:35 Avalanche Specialist
Near Sonora Pass BWRA Snowpack Observation 12/25/2020 - 12:30 Professional Observer
McKay Creek BWRA Snowpack Observation 02/16/2018 - 11:00 Test Pit Minor Cracking Minor cracking as we skinned through Professional Observer
Avalanches near Sardine Meadows - Hwy 108 BWRA Avalanche Observation 02/10/2017 - 00:00 Avalanche Specialist
Sardine Meadow BWRA Snowpack Observation 02/12/2021 - 14:00 Professional Observer
Voodoo Bowl BWRA Avalanche Observation 12/21/2018 - 07:58 Avalanche Specialist
Leavitt Junction BWRA Snowpack Observation 02/25/2019 - 13:00 Wind Affected Surface at Leavitt Junction Professional Observer
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
South Facing Chimney's above Koenig BWRA Snowpack Observation 04/11/2021 - 13:00 Professional Observer
Mt Emma BWRA Snowpack Observation 01/18/2022 - 16:00 Avalanche Specialist
East of "Big Easy Bowl" BWRA Snowpack Observation 02/25/2018 - 11:40 Avalanche Specialist
Trees 1/4th mile NE of Leavitt Lake BWRA Snowpack Observation 02/20/2017 - 15:30 Public
Virginia Lakes BWRA Snowpack Observation 03/06/2022 - 11:05 Public


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