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
03/30/2019 - 03:00 Elephant Back Carson Pass Area Avalanche Observation Public
03/29/2019 - 14:30 Hope Valley/Blue Lakes Carson Pass Area Snowpack Observation Obvious wind activity Close up of what appeared to be a small avalanche. Public
03/29/2019 - 13:30 Galena Bowls - Mt. Rose Mount Rose Area Snowpack Observation Skier triggered cracking on a previously undercut low angle wind-loaded slope. Cloud cover during the day in this area seemed to limit the formation of loose wet snow problems. Scoured area along the ridge with a deposition zone for wind transported snow below the skier. The arrow shows the direction that the wind transported the snow during the recent storm. Forecaster
03/29/2019 - 12:00 Indian Valley Ebbetts Pass Area Avalanche Observation Professional Observer
03/29/2019 - 11:00 Trimmer Peak Carson Pass Area Snowpack Observation Small cracks on the edge of a wind blown feature. Small windslab on a steeper convexity test slope. Same test slope. My partner noticed this as terrain irregularity with signs of wind effected snow. Professional Observer
03/29/2019 - 10:00 Judah Peak Donner Summit Area Avalanche Observation Wind slab avalanche on the east face of Judah Peak caused by an oven sized cornice failure Public
03/29/2019 - 10:00 Grey creek (Bronco) chutes Mount Rose Area Avalanche Observation Public
03/28/2019 - 15:00 Brockway Summit Mount Rose Area Snowpack Observation Thin sun crust on top of the new snow on a N facing aspect Roller balls almost possible on a micro west aspect at 3:00 at 7,000 feet. Public
03/28/2019 - 13:15 Just north of Mt Lola Independence Lake Area Avalanche Observation Public
03/28/2019 - 12:00 Jakes Peak West Shore Area Snowpack Observation High thin clouds with lots of sun on the west shore this morning. Cracking on small wind loaded test slope Small loose wet avalanche off of rocks on east aspect around 11am. Pinwheels on SE aspect at noon. Forecaster
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
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
03/27/2019 - 14:30 Mt.Judah Donner Summit Area Snowpack Observation Public
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 - 13:45 Grouse Rock Blackwood Canyon or Ward Canyon Area Snowpack Observation Snow structure in top 60cm @ 8200ft NE aspect Guide
Tahoe Mountain School


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