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
02/23/2017 - 13:00 Lower bench below Echo Peak Echo Summit Area Avalanche Observation Public
03/15/2016 - 03:00 Below the Cornice in Polaris Bowl Luther Pass Area (including Job and Freel) Avalanche Observation
Public
11/16/2017 - 09:00 Tamarack Pk - Hourglass Bowl Mount Rose Area Avalanche Observation Public
01/05/2017 - 10:53 Fireplug Mount Rose Area Avalanche Observation Public
02/05/2017 - 23:00 Sunrise Bowl Donner Summit Area Avalanche Observation
Public
02/20/2017 - 12:00 Andesite Ridge Donner Summit Area Avalanche Observation
Natural storm slab, 46 degree slope, NE aspect, 7500'.
Avalanche debris running through trees.
Forecaster
01/23/2016 - 17:00 Crater Lake Bowl Carson Pass Area Avalanche Observation
Professional Observer
02/26/2017 - 11:15 Echo Peak Echo Summit Area Avalanche Observation
Small part of the cornice broke off  - far upper left of photo.
The debris made it over the next rollover.
Avalanche path.  I had noticed tracks in this area on my hike up.
Public
02/18/2016 - 07:05 Alpine Meadows Road Five Lakes Area Avalanche Observation Forecaster
11/16/2017 - 09:00 Hourglass bowl Mount Rose Area Avalanche Observation Public
11/27/2016 - 07:00 Castle Peak and Basin Peak Donner Summit Area Avalanche Observation Forecaster
01/03/2017 - 12:00 Andesite Peak Donner Summit Area Avalanche Observation
Natural wind slab avalanche
Shooting cracks in wind loaded terrain near natural avalanche.
Forecaster
01/15/2016 (All day) Hidden Peak West Shore Area Avalanche Observation
Forecaster
01/19/2016 - 10:00 West Fireplug Mount Rose Area Avalanche Observation
Forecaster
04/09/2017 - 12:00 Ginny Lake Mount Rose Area Avalanche Observation
Public

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