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 Snowpack, Avalanche, Weather Videos Snowpit videos (tests, etc) Observation made by
01/04/2017 - 13:00 Andesite Ridge Donner Summit Area Avalanche Observation
Partially covered up avalanche debris.
Natural avalanche on NE-E aspect wrapping around rock feature.  125' wide x 200' long.
Wind slab avalanche with up to 3' crown.  Covered in by additional snow.
Forecaster
01/04/2017 - 15:00 Andesite Ridge Donner Summit Area Avalanche Observation
Partially filled in crown and covered debris
Forecaster
01/10/2017 - 15:00 Deep Creek Cabin Creek, Deep Creek, or Pole Creek Area Avalanche Observation
Overview of the slide
The climbers left flank
Another overview
Debris and knocked over trees.
Forecaster
01/20/2017 - 15:45 Andesite Peak Donner Summit Area Avalanche Observation
D2 Wind slab avalanche triggered by a small cornice piece
Small avalanche triggered by a larger piece of cornice
Cracking in the storm snow on in below treeline terrain
Forecaster
03/03/2018 - 09:00 Powderhouse Bowl Luther Pass Area (including Job and Freel) Avalanche Observation
Crown and some debris.
Cracks extending from the crown, but slope below did not slide.
Professional Observer
01/05/2016 - 16:23 Becker Echo Summit Area Avalanche Observation Public
02/11/2017 - 12:20 Incline Peak Mount Rose Area Avalanche Observation
Public
02/13/2017 - 14:23 Mt Rose Mount Rose Area Avalanche Observation
Public
01/13/2016 - 11:00 Andesite Peak Donner Summit Area Avalanche Observation
Forecaster
01/15/2016 - 12:00 Donner Pass Donner Summit Area Avalanche Observation
Public
02/20/2017 - 15:06 Hidden/Jakes West Shore Area Avalanche Observation
Public
02/27/2017 - 09:00 Peak 9269' West Shore Area Avalanche Observation
E to SE aspect, 9.000'
Skin track barely visible exiting upper climbers right just below crown.
Skin track barely visible exiting upper climbers right just below crown.
Debris piles.
Forecaster
04/09/2017 - 12:00 Polaris Bowl Avalanche Observation
Public
03/07/2016 - 12:00 Above the Skiers left trees in Dead tree bowl Carson Pass Area Avalanche Observation Public
04/14/2017 - 09:45 East of frog lake Carson Pass Area Avalanche Observation
Public

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