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 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
01/15/2016 - 13:00 Donner Peak Donner Summit Area Avalanche Observation
03/05/2016 - 12:00 Jakes Peak West Shore Area Snowpack Observation Forecaster
11/20/2017 - 12:00 Maggies Peak South Desolation Wilderness Area (including Emerald Bay) Snowpack Observation Forecaster
12/03/2016 - 13:00 Ward Canyon Blackwood Canyon or Ward Canyon Area Snowpack Observation Forecaster
04/13/2017 - 12:00 Echo Peak Echo Summit Area Snowpack Observation Wet rain soaked snow below 25 to 30 cm of storm snow.Fully refilled skin track after 1 hr. Forecaster
12/29/2017 - 12:30 Woods Lake Carson Pass Area Snowpack Observation Cracking around skis in below treeline terrain down to weak faceted snow.Small test slope-BTL terrain, northerly aspect.  Whumpfing occurred when 1 skier got on slope.Several layers separated by thin crusts with weak faceted snow below. Forecaster
02/07/2017 - 08:30 Andesite Ridge Donner Summit Area Avalanche Observation
Crown from wet slab avalanche triggered by natural cornice collapse.
Cornice and avalanche debris.
Older wet slab avalanches on NE-E aspects. These were widespread in the area.
01/05/2016 - 11:00 Silver Peak Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation Forecaster
12/02/2017 - 12:00 Mt. Lola Independence Lake Area Snowpack Observation Large SH existed in lower meadow but not on open slope above.  8000', NE-E aspects.Evidence of wind destroyed SH on this open slope.  8200', N aspect. Forecaster
12/17/2015 - 11:30 Incline Lake Peak Mount Rose Area Snowpack Observation Forecaster
03/13/2016 - 12:00 Above Fontanillis Lake Desolation Wilderness Area (including Emerald Bay) Avalanche Observation
12/07/2017 - 12:30 Incline Lake Pk Mount Rose Area Snowpack Observation Forecaster
02/02/2018 - 12:30 Fireplug Mount Rose Area Snowpack Observation Small roller balls and pinwheels on a SE aspect at 9100 ft. Forecaster
12/21/2015 - 10:30 Tamarack Peak Mount Rose Area Snowpack Observation Forecaster
03/15/2016 - 10:00 Mt. Judah Donner Summit Area Avalanche Observation


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