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 button above.
Date and time of observation or avalanche occurrence Location Region Observation Type Photos Snowpack, Avalanche, Weather Videos Snowpit videos (tests, etc) Observation made by
11/29/2019 - 10:30 Tamarack PK Mount Rose Area Snowpack Observation Public
11/29/2019 - 09:30 Frog Lake Carson Pass Area Snowpack Observation View towards Elephants Back 55cm of light fist hard snow 10cm of facets at the bottom of the snowpack Closeup of the facets Educator
Lake Tahoe Community College - Wilderness Education
11/28/2019 - 07:30 Donner ridge. Donner Summit Area Snowpack Observation Public
11/27/2019 - 11:30 East Ridge Tamarack Peak Mount Rose Area Avalanche Observation Facets under new storm snow. Scoured Ridge, Loaded Slope Wind Slab Avalanche Professional Observer
11/27/2019 - 10:15 Ward Canyon Blackwood Canyon or Ward Canyon Area Snowpack Observation HS 55 @ 8k - east aspect Guide
Tahoe Mountain School
11/27/2019 - 10:00 Tamarack Peak Mount Rose Area Snowpack Observation Hand pit showing crust and basal facets Public
11/26/2019 - 10:00 Spooner Summit/White Hill East Shore Area Snowpack Observation Thin patchy 0.5 to 2 inches of moderately faceted snow on N aspect. Thin patchy 0.5 to 2 inches of moderately faceted snow on NE aspect. Thin patchy 0.5 to 2 inches of moderately faceted snow on NE aspect. This photo shows how snow cover is limited to NW-N-NE aspects. W aspect in the forground. Forecaster
11/25/2019 - 11:30 Incline Lake Peak Mount Rose Area Snowpack Observation Wind scouring begins in the trees on northerly aspects as slopes get steeper. Near and above treeline terrain was scoured down to dirt and rocks from recent NE wind events. 1-2mm facets exist in below treeline terrain in a very shallow snowpack. 2-5'' snow coverage in below treeline terrain. Forecaster
11/23/2019 - 15:00 Chickadee Ridge Mount Rose Area Snowpack Observation Public
11/22/2019 - 12:00 Round Top Carson Pass Area Snowpack Observation View of Roundtop area from approach hike. Looking up towards Roundtop from below. Rimed trees showing evidence of recent NE winds. Examining the deepest drift of snow we encountered. Professional Observer
11/21/2019 - 14:30 Barker Pass Mount Rose Area Snowpack Observation Less than one inch of snow below Ellis Peak. Less than one inch of snow below treeline at 8,000'. Forecaster
11/20/2019 - 11:30 Tamarack Peak Mount Rose Area Snowpack Observation Strong NE winds scouring northerly aspects on exposed ridge. Hourglass Bowl scoured down to mostly bare ground and rock. S-SW-W aspects getting wind loaded by strong NE winds right over the ridge of Hourglass Bowl. Minor cracking in fresh wind slabs formed today. Small areas of faceted snow from early season snow in September/October. Forecaster


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