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 http://www.snowpilot.org/. 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 Videos Observation made by
01/25/2017 - 13:02 Porcupine Ridge East Shore Area Avalanche Observation
Public
02/05/2017 - 09:00 Jakes Peak Desolation Wilderness Area (including Emerald Bay) Avalanche Observation
Public
02/11/2017 - 11:00 Davis Creek Main Stem Mount Rose Area Avalanche Observation
The starting zone is behind skier and along side loaded ridge. Crown was covered by later wind loading
As the original slab loaded steep sided ravine below it morphed into a wet slide that scoured down to old snow bed surface
After dropping approximately 500 feet vert the wet slide scoured deeper leaving luge runs made of clear rink ice
After running a 1000+ vert feet some debris was left behind in the less steep areas
The person in this photo gives the reader an idea of the immensity and power of this slide
At a curve in the ravine the slide cut down to bare ground on the outside of the turn
The deposition at the bottom left 10 foot scoured walls and an acre of debris
Skiers give the slide a little more perspective
Public
01/18/2016 - 07:00 Castle Peak (SnoMo Bowl) Donner Summit Area Avalanche Observation
Public
02/22/2017 - 03:10 Little Gold Lake Outside of the Forecast Area Avalanche Observation Lakes Basin
Public
02/06/2016 - 09:01 Mt. Rose Wilderness Mount Rose Area Avalanche Observation
Public
03/13/2016 - 08:30 North of Mt. Judah Donner Summit Area Avalanche Observation
Guide
Alpenglow Expeditions
04/14/2017 - 13:00 Tram Face Squaw Avalanche Observation
D2 Wet Slab
Public
04/04/2016 - 04:28 Pyramid, Price, Agassiz Desolation Wilderness Area (including Emerald Bay) Avalanche Observation
Public
01/27/2018 - 08:00 Midway between Lincoln and Anderson Peak Donner Summit Area Avalanche Observation
Small, wide slab avalanche just below the Crest
Same slide from skier's left edge
Public
12/18/2016 - 12:31 Sugar Bowl/ Mt. Judah Donner Summit Area Avalanche Observation
Guide
Alpenglow Expeditions
01/21/2017 - 15:30 Incline Lake Peak Mount Rose Area Avalanche Observation
Crown of smaller test slope
Small slide on test slope with 40+ deg slope
Shooting  crack near summit that released when triggered with cornice drop
Public
01/15/2016 - 12:00 Ralston Peak Echo Summit Area Avalanche Observation
Public
01/23/2016 - 13:30 Andesite Ridge Donner Summit Area Avalanche Observation
Forecaster
03/04/2017 - 14:10 Wheeler Ridge Bear Valley Area Avalanche Observation
Public

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