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 http://www.snowpilot.org/. A video on how to download and use this program is available here. Please send us your observations using the buttons below.

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
Just north of Tinker, Upper Cold Stream Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation 12/27/2016 - 11:00 Public
National Geographic Bowl, Granite Chief Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation 12/26/2016 - 12:53 Guide
Alpenglow Expeditions
Ralston - North face Desolation Wilderness Area (including Emerald Bay) Avalanche Observation 12/26/2016 - 12:30 Avalanche on ralston Public
North side Ralston Echo Summit Area Avalanche Observation 12/26/2016 - 12:30 Public
Blue Lakes Carson Pass Area Snowpack Observation 12/26/2016 - 12:00 Professional Observer
Andesite Peak Donner Summit Area Snowpack Observation 12/26/2016 - 11:00 Forecaster
Andesite Peak Donner Summit Area Snowpack Observation 12/26/2016 - 10:10 20161226 Andesite Avlanche Crown Forecaster
Powderhouse Peak Luther Pass Area (including Job and Freel) Snowpack Observation 12/25/2016 - 11:30 No cracking or slab activity observed after jumping on trigger points of small test slopes above treeline. Snow depth near summit of Powderhouse Peak. Professional Observer
West ridge of Castle Donner Summit Area Snowpack Observation 12/25/2016 - 11:07 shooting crack 1 shooting crack 2 Guide
Alpenglow Expeditions
E judah Donner Summit Area Avalanche Observation 12/24/2016 - 13:45 Guide
Alpenglow Expeditions
East Face Andesite Peak Donner Summit Area Avalanche Observation 12/24/2016 - 13:11 Public
Andesite Peak Donner Summit Area Snowpack Observation 12/24/2016 - 12:00 Ski kicks on test slopes mainly resulted in loose dry avalanches (sluffs). PST 30/100 END on NCF above 12/15 RC.  8000', NE aspect, 24 degree slope. Loose NCF above the 12/15 RC. Forecaster
Blue Lakes Carson Pass Area Snowpack Observation 12/24/2016 - 12:00 Professional Observer
Andesite Peak Donner Summit Area Avalanche Observation 12/24/2016 - 11:30 MVI 3350 Forecaster
Lowest open pitch lookers right of traditional skin track Blackwood Canyon or Ward Canyon Area Avalanche Observation 12/24/2016 - 11:15 Public

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