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
01/08/2019 - 09:15 Red Lake Carson Pass Area Snowpack Observation Public
01/08/2019 - 10:00 Mt Rose Mount Rose Area Avalanche Observation Public
01/08/2019 - 11:00 Red Lake Peak Carson Pass Area Snowpack Observation Settlement cones. Very strong snow for the top 40cms in this area. ECTP 24 down 45cms from surface Professional Observer
01/08/2019 - 11:00 Needle Peak Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation Minor cornice cracking Weak layer underneath a windslab Wind slab avalanche (~48hrs old) Guide
Alpenglow Expeditions
01/08/2019 - 11:45 Mt. Judah Donner Summit Area Snowpack Observation Signs of up to 6 inches of storm snow settlement in this area. Multi-height ECTN results within the recent storm snow. Large cracks behind cornices from previous natural cornice failures. Forecaster
01/08/2019 - 12:00 Squaw Ridge Carson Pass Area Snowpack Observation Professional Observer
01/08/2019 - 15:00 Shirley Canyon Cabin Creek, Deep Creek, or Pole Creek Area Avalanche Observation Educator
Alpenglow Expeditions
01/08/2019 - 15:00 Andesite Peak Donner Summit Area Avalanche Observation Public
01/09/2019 - 11:00 Elephant's Hump Carson Pass Area Snowpack Observation Professional Observer
01/09/2019 - 12:00 Wildflower Ridge Donner Summit Area Snowpack Observation ECTN's in recent storm snow with no results on old faceted layer. Guide
Tahoe Mountain School
01/09/2019 - 13:15 Hidden Peak West Shore Area Snowpack Observation Forecaster
01/10/2019 - 11:30 Waterhouse Peak Luther Pass Area (including Job and Freel) Snowpack Observation Jumping on several summit ridge wind loaded test slopes produced little to no failure of wind slabs. Wind slab - very minor crack and the only cracking we could trigger on summit ridge test slopes. 2 to 5 mm surface hoar in upper elevation open areas, ~9,400', N aspect. 10 mm surface hoar along the summit ridge at ~9,480', N aspect. Forecaster
01/10/2019 - 12:00 Blue Lakes Carson Pass Area Snowpack Observation Professional Observer
01/10/2019 - 12:00 Talking Mt. Echo Summit Area Snowpack Observation Lovely day in the on the ridge. Warm in the sun, but well below freezing in the shade. The new snow was mostly uncohesive, but did show a little slab characteristics. Cornice break in response to a wicked splitboard kick. This is what our PSTs looked like after we completed the tests, almost the same as when we started. Professional Observer
01/10/2019 - 12:00 Tamarack Peak Mount Rose Area Snowpack Observation Small inconsequential cracking on a wind-loaded test slope. The shiny track in front of my ski is not the track of a giant snow snail, but rather surface hoar that collapsed as a small cornice piece slide down the slope. 4 to 8 mm surface hoar was present on most open slopes at all elevations. Settlement crack around the base of a tree. Forecaster


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