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
01/05/2016 - 11:00 Silver Peak Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation Forecaster
01/29/2018 - 13:10 National Geographic Bowl, Granite Chief Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation Guide
Alpenglow Expeditions
12/27/2017 - 11:00 Silver Peak Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation Skier triggered crack connects between the POV ski and ski partner.High contrast version of same photo to highlight crack.High contrast version of same crack, as viewed from the other end.Facets from the problematic weak layer.More facets from the same problematic weak layer. 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
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
03/25/2017 - 13:00 NE slope, Silver Peak Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation Public
01/06/2017 - 14:33 Deep Creek Cabin Creek, Deep Creek, or Pole Creek Area Avalanche Observation Shooting cracks
Slope step down
Public
02/18/2017 - 11:00 National Geographic Bowl, Granite Chief Peak Cabin Creek, Deep Creek, or Pole Creek Area Avalanche Observation
Cornice drop and resulting wind slab avalanche
Larger storm slab avalanche
Example of shooting crack and crown near flank
Guide
Alpenglow Expeditions
12/30/2016 - 10:30 National Geographic Bowl Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation Guide
Alpenglow Expeditions
01/19/2017 - 14:30 Tram Ridge / Shirley canyon Cabin Creek, Deep Creek, or Pole Creek Area Avalanche Observation
Skier triggered storm slab avalanche_20170119
Guide
Alpenglow Expeditions
12/19/2017 - 09:30 Silver Peak Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation Minimal snow coverage below 7500 ft.Scoured surfaces on exposed slopes in above treeline terrain.Near surface facets. Forecaster
12/26/2015 - 12:30 South Ridge- Deep Creek Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation Small, unstable wind loaded slab.Small, unstable wind loaded slab. Public
12/30/2016 - 11:30 East Side of the North Bowl of Silver Peak Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation Public
03/19/2016 - 14:30 Sugar Bowl to Squaw traverse Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation Forecaster
01/11/2016 - 12:00 Deep Creek Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation Forecaster

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