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
02/14/2017 - 12:45 Deep Creek - East Ridge Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation Public
01/05/2016 - 11:00 Silver Peak Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation Forecaster
02/18/2016 - 07:00 Silver Peak Cabin Creek, Deep Creek, or Pole Creek Area Avalanche Observation
Forecaster
12/12/2015 - 13:35 Deep Creek, N aspect Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation .5-1cm surface hoar formation Public
02/25/2017 - 12:30 National Geographic Bowl, Granite Chief Cabin Creek, Deep Creek, or Pole Creek Area Avalanche Observation
Small skier triggered slab avalanche
Guide
Alpenglow Expeditions
01/26/2016 - 12:35 Deep Creek Cabin Creek, Deep Creek, or Pole Creek Area Avalanche Observation
Public
01/12/2017 - 12:00 Deep Creek Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation Loose dry sluff triggered by a small cornice dropped onto the slope.The wind loaded test slope that cracked and failed with a hard ski kick after previously being undercut.Settlement crack around the base of a tree. Forecaster
02/24/2016 - 12:30 South Shoulder of Gold peak Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation roller balls on a steep SE aspect @ 12:30PM Guide
Alpenglow Expeditions
04/08/2017 - 16:30 Poulsen Peak Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation Hand shear showing no slab characteristicsMinor wind loading Guide
Alpenglow Expeditions
02/05/2016 - 12:00 Silver Peak Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation Forecaster
01/26/2016 - 13:00 Deep Creek Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation Forecaster
03/22/2016 - 02:00 Silver Peak Cabin Creek, Deep Creek, or Pole Creek Area Avalanche Observation
Forecaster
12/26/2017 - 11:00 400 m WSW of Deep Creek Peak Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation Guide
Donner Summit Avalanche Seminars
02/24/2018 - 10:00 National Geographic Bowl, Granite Chief Peak Cabin Creek, Deep Creek, or Pole Creek Area Avalanche Observation Natural wind slab avalanche, Shooting crack in obvious wind slab Guide
Alpenglow Expeditions
03/13/2016 - 12:30 Silver Peak Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation Forecaster

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