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
02/08/2019 - 11:00 Mt. Tallac Desolation Wilderness Area (including Emerald Bay) Snowpack Observation Public
02/07/2019 - 15:30 Echo Peak Echo Summit Area Avalanche Observation 6" crown, 30' wide, 50-70' run Runout Educator
Lake Tahoe Community College - Wilderness Education
02/07/2019 - 14:00 Mt. Judah Donner Summit Area Snowpack Observation Surface hoar varied from 3 to 10mm in size on multiple aspects and elevations. Wind textured snow on the top 50' of Mt. Judah from recent NW-NE winds. Guide
Tahoe Mountain School
02/07/2019 - 12:00 The Nipple Carson Pass Area Avalanche Observation Professional Observer
02/07/2019 - 12:00 Davis Creek Mount Rose Area Snowpack Observation Davis Creek area as seen on Feb 7 with Feb 5 avalanche noted below arrow. Forecaster
02/07/2019 - 08:00 Shirley Canyon Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation Surface hoar developing on north facing aspect at ~7500' Public
02/06/2019 - 14:00 Shirley Canyon Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation Public
02/06/2019 - 13:00 Blackwood Ridge Blackwood Canyon or Ward Canyon Area Snowpack Observation Signs of storm snow settlement, approaching 10 inches in some areas. Signs of previous wind transport near treeline. Wind loaded features that were unreactive to skier weight. Forecaster
02/06/2019 - 12:00 Snowboard Bowl Carson Pass Area Snowpack Observation Professional Observer
02/06/2019 - 11:00 Centerville Peak East Shore Area Snowpack Observation Old avalanche debris from a cornice fall that was partially covered by new snow Deep and soft new snow Evidence of partially buried avalanche debris is highlighted Snow coverage near 5,400 ft elevation in the Carson Valley Public
02/06/2019 - 10:00 Flagpole Peak Echo Summit Area Snowpack Observation Avalanche debris from a previous slide was buried under about a foot of soft snow. Minor wind effect observed at the saddle near the summit. Snow was still very soft. Some trees at the summit ridge still held snow despite previous wind and current direct sun. Tree wells were deep. Professional Observer
02/05/2019 - 15:00 Duane Bliss East Shore Area Snowpack Observation Professional Observer
02/05/2019 - 13:00 Rubicon Peak West Shore Area Snowpack Observation Public
02/05/2019 - 12:00 Jakes Peak West Shore Area Snowpack Observation About an inch of settlement crack around trees. 15 cm wind slab at treeline. Ski pen thigh deep. Wind pillow above NE aspect terrain at the summit. Ski cut in wind pillow near summit with no wind slab failure. Convective cell snowing out over Lake Tahoe. Forecaster
02/05/2019 - 12:00 Sierra Crest above Bradley Hut Cabin Creek, Deep Creek, or Pole Creek Area Avalanche Observation Educator
Donner Summit Avalanche Seminars


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