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. This program is available as a free download at A video on how to download and use this program is available here.

Location Region Observation Type Date and time of observation or avalanche occurrence Avalanche observation video Avalanche photos Snowpit videos (tests, etc) Snowpack photos Snowpit or crown profile photo or graph Observation made by
No Name Area Williams Lake Area Snowpack Observation 12/28/2016 - 11:19 Inverted skin track from a couple of days ago Vallecito with wind effect up top and natural avalanches from a couple of days ago bottom right Skinning on a firm hard packed ridgeline Forecaster
Kachina Peak / Lake Fork Area Williams Lake Area Snowpack Observation 12/27/2016 - 11:10 Avalanche Debris on an East Aspect Low Density Snow Below Treeline Rollers on a southerly aspect Sheep enjoying the scoured ridgelines Forecaster
Williams Lake Drainage Williams Lake Area Snowpack Observation 12/26/2016 - 11:14 Small Crown in the Rocks Forecaster
Kachina Basin (out of bounds) Snowpack Observation 12/24/2016 - 10:30 Forecaster
Tresckow Highline Ridge TSV Outside of the Forecast Area Snowpack Observation 12/23/2016 - 11:30 Crown Profile from Tresckow Highline Ridge Debris Running Through the Trees Professional Observer
Big Tesuque Outside of the Forecast Area Snowpack Observation 12/22/2016 - 13:22 Public
East Side of Kachina Peak Williams Lake Area Snowpack Observation 12/22/2016 - 11:41 Andy and Graham heading out into the storm Walking out into the storm Forecaster
Gavilan Canyon Snowpack Observation 12/21/2016 - 10:57 NNE Aspect Pit Profile 11,545' S Aspect Pit Profile 11,115' Surface Hoar down low in the creek bed Forecaster
Recap of Storm and Snowpack Williams Lake Area Snowpack Observation 12/19/2016 - 11:48 Forecaster
Williams Lake Drainage Avalanches Williams Lake Area Snowpack Observation 12/18/2016 - 13:27 NE Aspect Crown weak layer is buried facets 20 to 30 cms above the ground Avalanche Crown below the rock band NE Aspect Image of Crown is from in the chute SE Aspect 12,500' 4' wind slab that released on Sun Crust from Thursday before the storm Wind Crusts starting to form Forecaster
Williams Lake Area Williams Lake Area Snowpack Observation 12/17/2016 - 14:09 Avalanche Debris from West Facing Start Zone Avalanche Debris From E Aspect Forecaster
Williams Lake/Kachina Basin Snowpack Observation 12/16/2016 - 14:19 Shooting Cracks Avalanche Debris Forecaster
Above Williams Lake Williams Lake Area Snowpack Observation 12/13/2016 - 09:51 Snow Pit w/ buried near surface facets Lake Fork Forecaster
Long Canyon - NE aspect @ 11,735ft Long Canyon Area Snowpack Observation 12/12/2016 - 12:02 wind swept debris Forecaster
Lake Fork Peak - NE aspect @ 12,500ft Williams Lake Area Snowpack Observation 12/09/2016 - 12:02 Forecaster