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
01/19/2016 - 15:00 Donner Peak Donner Summit Area Avalanche Observation
Forecaster
03/02/2017 - 23:05 Secret Peak West Shore Area Avalanche Observation
The slides in the looker's left half of the photo occurred at 11:00 am today. The slides in the looker's right half were older, likely from yesterday.
Forecaster
03/14/2017 - 10:15 South of Frog Lake Cliff Donner Summit Area Avalanche Observation
Educator
Donner Summit Avalanche Seminars
03/25/2017 - 13:22 Outside of boundary in Snow Valley Bear Valley Area Avalanche Observation
Public
02/18/2016 - 07:00 Silver Peak Cabin Creek, Deep Creek, or Pole Creek Area Avalanche Observation
Forecaster
04/10/2017 - 12:00 Incline Lake Peak Mount Rose Area Avalanche Observation
Forecaster
03/13/2016 - 12:00 Above Fontanillis Lake Desolation Wilderness Area (including Emerald Bay) Avalanche Observation
Forecaster
04/22/2017 - 12:30 Rose Knob, Third Creek Mount Rose Area Avalanche Observation
Public
11/28/2017 - 07:22 Incline Peak Mount Rose Area Avalanche Observation
Public
04/09/2016 - 12:00 Tamarack Peak Mount Rose Area Avalanche Observation Public
12/13/2017 - 15:27 Castle Peak Donner Summit Area Avalanche Observation
Public
11/27/2016 - 07:00 Andesite Ridge Donner Summit Area Avalanche Observation Guide
Tahoe Mountain School
12/10/2016 - 10:18 Mt. Rose Chutes - CLOSED AREA Mount Rose Area Avalanche Observation
Starting zone on the upper avalanche path after the afternoon avalanche release. This is a mix of the morning and afternoon crowns. Note how the crown steps down into different layers.
Closeup of the crown.
Overview of the upper starting zone
Smaller avalanche from the afternoon in an adjacent path.
Close up of the small crown in the lower adjacent path
Looking down the slope to the debris pile.
Looking up from the debris. Photo by Andrew Pinkham
The confluence of debris where the skier was found. The person is standing next to the burial location.
Standing in the hole where the skier was buried. He was buried prone in the area at my feet.
Forecaster
01/06/2018 - 06:00 Twin Peaks Blackwood Canyon or Ward Canyon Area Avalanche Observation Public
12/13/2015 - 11:00 Deep Creek Cabin Creek, Deep Creek, or Pole Creek Area Avalanche Observation
Forecaster

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