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 occurrence Avalanche observation video Avalanche photos Snowpit videos (tests, etc) Snowpack photos Snowpit or crown profile photo or graph Observation made by
BWRA - Upper McKay Creek BWRA Snowpack Observation 01/31/2015 - 12:00 Avalanche Specialist
BWRA - Sardine Meadows BWRA Snowpack Observation 01/30/2015 - 10:30 Avalanche Specialist
BWRA - Upper Roller Coaster BWRA Snowpack Observation 01/29/2015 - 15:05 Avalanche Specialist
BWRA - Upper PCT Xing area BWRA Snowpack Observation 01/28/2015 - 13:30 Avalanche Specialist
BWRA - PCT Xing area BWRA Snowpack Observation 01/24/2015 - 13:30 Avalanche Specialist
BWRA - Koenig Lake BWRA Snowpack Observation 01/23/2015 - 12:00 Avalanche Specialist
BWRA - Sardine Cliffs / Meadows area BWRA Snowpack Observation 01/22/2015 - 14:00 Avalanche Specialist
Upper Horse Creek drainage, Twin Lakes area Other Area Snowpack Observation 01/19/2015 - 14:00 "Sub Twin Peak" (near the Matterhorn) the lines we skied, Upper Horse Creek drainage, Twin Lakes area Upper Horse Creek basin Avalanche Specialist
BWRA Section 7, Roller Coaster Path BWRA Snowpack Observation 01/18/2015 - 11:30 Avalanche Specialist
BWRA - Leavitt Lake BWRA Snowpack Observation 01/16/2015 - 13:45 Avalanche Specialist
BWRA - Sonora Pass BWRA Snowpack Observation 01/07/2015 - 14:30 portion of ECTN that failed Avalanche Specialist
Bridgeport Ice Skating Pond Other Area Snowpack Observation 01/06/2015 - 16:30 Avalanche Specialist
S. Side Big Valley Lake, Virginia Lakes bc Other Area Snowpack Observation 12/26/2014 - 12:20 Avalanche Specialist
Lwr Mdws, The Negatives, June Mtn bc Other Area Snowpack Observation 12/23/2014 - 13:30 Avalanche Specialist