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
03/24/2019 - 13:00 Kettle Peak Outside of the Forecast Area Avalanche Observation Public
03/24/2019 - 13:00 East Lincoln Donner Summit Area Avalanche Observation




03/24/2019 - 13:15 Donner Peak, Poop Chute area Donner Summit Area Avalanche Observation Public
03/25/2019 - 01:30 Mount Judah Donner Summit Area Avalanche Observation Public
03/25/2019 - 12:00 Elephants Hump Carson Pass Area Snowpack Observation Snow transport in near treeline NW-N terrain. Very small (1-2'') wind slabs that were reactive in some wind loaded NW-N-NE aspects. ECTN on small wind loaded test slope.  3-4'' wind slab on top of less dense snow, mainly stellars, on top of a previous melt freeze crust. 2'' of wet surface snow existed by 12:15pm. Softening surface snow on southerly aspects by 11:00am Forecaster
03/26/2019 - 11:30 Hidden Peak West Shore Area Avalanche Observation Ski cuts on several wind slab test slopes that produced no results. Size D1 loose wet, intentionally skier triggered on E aspect at about 8,200'. Another size D1 loose wet, intentionally skier triggered on ENE aspect at about 7,500'. Forecaster
03/26/2019 - 12:00 Silver Peak Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation Widespread skier triggered roller balls and pinwheels Clouds moving in and strong SW winds blowing snow. ECTN on a N facing slope at 8000 ft. Forecaster
03/26/2019 - 12:00 Trimmer Luther Pass Area (including Job and Freel) Snowpack Observation Professional Observer
03/27/2019 - 12:00 Incline Lake Peak Mount Rose Area Snowpack Observation Mid to low level clouds with light snow on Incline Lake peak. Cracking around skis at the new snow/old snow interface. Small wind loaded test slopes showing no results with cornice kicks and ski cuts. N aspect, 9250', below treeline terrain. Forecaster
03/27/2019 - 12:00 Elephants Hump Carson Pass Area Snowpack Observation Skier triggered sluff of wet heavy snow on a small test slope below 8000 ft. Wind scoured ridgeline Small cracking above the skin track on a sheltered slope. Forecaster
03/27/2019 - 13:45 Grouse Rock Blackwood Canyon or Ward Canyon Area Snowpack Observation Snow structure in top 60cm @ 8200ft NE aspect Guide
Tahoe Mountain School
03/27/2019 - 14:00 Powderhouse Peak Luther Pass Area (including Job and Freel) Snowpack Observation Blowing snow along the summit ridge of Powderhouse. Shooting crack on a wind-loaded test slope on @ 9100 ft. on Powderhouse Smal ski cut triggered wind slab on a test slope on Powderhouse Peak. A lull in the storm over Luther Pass between 1 pm and 3 pm today. Forecaster
03/27/2019 - 14:30 Mt.Judah Donner Summit Area Snowpack Observation Public
03/28/2019 - 10:15 Rubicon Peak West Shore Area Snowpack Observation Wind affected surface snow Test slope: before Test slope: after Stormy weather and blowing snow looking back toward Desolation at 10:30am Public
03/28/2019 - 11:15 Talking Mountain Echo Summit Area Snowpack Observation Cracking associated with settlement A ski kick on a steep slope produced a small failure directly below the ski, but no propagation. It is tough to safely photograph enormous cornices, but that is what this photo is trying to convey. Intermittent snow fall during the early afternoon, including an impressive burst of graupel. Sastrugi being formed by Moderate west winds on Echo Lake. Professional Observer


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