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. SAC 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 pit 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 a program called SnowPilot to create the snowpit graphs. It is available as an online tool or as a downloadable program at http://www.snowpilot.org/. This website also has a quick video and user guide on how to use create snowpits. Please send us your observations using the buttons below.
Date and time of observation or avalanche occurrence Location Region Observation Type Photos Snowpack, Avalanche, Weather Videos Snowpit videos (tests, etc) Observation made by
02/03/2019 - 12:00 Waterhouse proper E-SE side Luther Pass Area (including Job and Freel) Snowpack Observation Public
03/23/2019 - 15:30 Crater Lake Carson Pass Area Avalanche Observation Reference of crown size and slide surface being old heat crusted layer. Crown area. Approximately 30m wide  Slide ran about 50 m to the next concavity   Public
02/21/2019 - 09:30 Highway Patrol Chutes Sawtooth Ridge to Tahoe City Snowpack Observation No visible signs of wind effect in the most recent snow. Public
12/01/2018 - 07:45 Castle Peak Donner Summit Area Avalanche Observation Public
03/10/2019 - 11:00 Rifle Peak Mount Rose Area Avalanche Observation Public
02/09/2019 - 10:30 Mt Lola Independence Lake Area Snowpack Observation Public
12/01/2018 - 03:15 N Judah trees Donner Summit Area Snowpack Observation Public
01/21/2019 - 10:30 Rubicon Peak West Shore Area Snowpack Observation Public
12/26/2018 - 14:00 Munchkins Zone - East Bowl Blackwood Canyon or Ward Canyon Area Snowpack Observation Looking south down the ridge. Scoured western slopes and small cornices on the eastern slopes Small cornice broke easily after second kick. Cornice break from underneath. Public
02/12/2019 - 14:15 Jobs area Luther Pass Area (including Job and Freel) Snowpack Observation Wind transport on jobs Public
02/25/2019 - 13:15 Stanford Rock Blackwood Canyon or Ward Canyon Area Avalanche Observation Public
02/16/2019 - 10:30 Incline Peak Mount Rose Area Avalanche Observation Public
03/02/2019 - 14:00 Schallenberger Donner Summit Area Snowpack Observation Public
01/12/2019 - 10:30 Rubicon Peak West Shore Area Snowpack Observation Public
03/23/2019 - 11:45 Incline Lake Peak Mount Rose Area Avalanche Observation Public

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