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 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
03/17/2019 - 12:00 Stevens Peak Carson Pass Area Snowpack Observation Large cornice over Stevens north bowl Public
02/03/2019 - 12:00 Waterhouse proper E-SE side Luther Pass Area (including Job and Freel) Snowpack Observation Public
03/21/2019 - 16:00 Eagle Lake Desolation Wilderness Area (including Emerald Bay) Snowpack Observation Glide Crack in top of underlying granite slab Public
01/16/2019 - 12:45 Slide Mountain Mount Rose Area Avalanche Observation Avalanche on Slide Mountain Public
04/13/2019 - 07:00 Echo Peak Echo Summit Area Snowpack Observation Large debris from previous wet slide Many previous wet slides Another previous wet slide Public
03/25/2019 - 01:30 Mount Judah Donner Summit Area Avalanche Observation Public
01/21/2019 - 10:30 Rubicon Peak West Shore Area Snowpack Observation Public
03/10/2019 - 19:00 Ebbetts Pass Proper Ebbetts Pass Area Avalanche Observation Public
01/12/2019 - 10:30 Rubicon Peak West Shore Area Snowpack Observation Public
12/16/2018 - 10:00 Frog Lake into Red Lake Carson Pass Area Avalanche Observation Slide path 50yds from where avalanche was triggered The larger snow block is the size of a compact car for reference Public
01/15/2019 - 14:15 Munchkins East Bowl Snowpack Observation

Munchkins Zone Storm Instability 1/15/19

02/18/2019 - 10:45 Incline Lake Peak (SE facing) Mount Rose Area Avalanche Observation Public
12/02/2018 - 10:45 Red Lake Peak - Above Crater Lake Carson Pass Area Avalanche Observation Just before the avalanche was triggered. The skier that triggered it just did a ski cut and then a few more turns with no reaction other than loose sluff. The avalanche would be triggered on the next 1 or 2 turns. The skier that triggered the avalanche took this photo of the loose dry sluff just before the avalanche was triggered. Avalanche debris field. The path dog legs out of sight to the left. Looking back at the upper path of the avalanche. You can ski where the skier went over the buried rocks but was able to ski to safety. The upper crown is 12-14" and lower crown 24-30". Overview of avalanche crown. The first ski cut is visible as well as where the skier stopped after releasing the loose sluff. 24-30" avalanche crown Upper bowl of Red Lake peak is visible with previous ski tracks. The lower part of the avalanche path is obscured by a small ridge line with trees. Public
03/23/2019 - 23:45 Red Lake Peak Carson Pass Area Avalanche Observation Public
12/25/2018 - 15:00 Castle Peak Donner Summit Area Snowpack Observation ECTP 12 on the summit pitch ascending Castle Peak The slab above the pit cracked quite easily. Another quick pit. ECTP 18 farther up in the NW trees of castle peak. 200 vertical feet below the highest trees on that slope skiers right side. Public


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