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
11/22/2017 - 10:30 Castle Peak Donner Summit Area Snowpack Observation Icy crusts on the northerly aspects that ranged from breakable to supportable.Breakable rain crust and rain runnels in a meadow at 7800 ft. Forecaster
11/21/2017 - 23:15 Incline Lake Pk and points to the NW. Mount Rose Area Snowpack Observation ESE aspect at around 8,600', ~12:30pm. Forecaster
11/20/2017 - 12:00 Maggies Peak South Desolation Wilderness Area (including Emerald Bay) Snowpack Observation Forecaster
11/19/2017 - 13:00 Elephant's Back and Round Top Carson Pass Area Snowpack Observation Professional Observer
11/19/2017 - 12:00 Sisters Carson Pass Area Snowpack Observation Blowing wind removing snow down to rain crust. Professional Observer
11/19/2017 - 12:00 Relay Peak Mount Rose Area Snowpack Observation , Forecaster
11/18/2017 - 12:00 Rubicon Peak West Shore Area Snowpack Observation 8100' on North aspect.  HS=67cm, skipen 5cmShallow snowpack below 7600'. Forecaster
11/18/2017 - 11:20 NE Bowl of Mt. Houghton Mount Rose Area Snowpack Observation Public
11/17/2017 - 12:28 Incline Lake Mount Rose Area Snowpack Observation Public
11/17/2017 - 12:00 Andesite Ridge Donner Summit Area Snowpack Observation Rain runnels on the snow surface despite 3 to 5 inches of new snow after it stopped raining. Public
11/17/2017 - 12:00 Tamarack Peak Mount Rose Area Snowpack Observation , , Forecaster
11/17/2017 - 11:00 mt lincoln Donner Summit Area Snowpack Observation 95cm total depthanderson ridge Public
11/17/2017 - 10:00 Elephant's Back Carson Pass Area Snowpack Observation Professional Observer
11/16/2017 - 12:00 Tamarack Peak Mount Rose Area Snowpack Observation Skier triggered cracking on a wind-loaded test slope on an E aspect at 9700 ft., Forecaster
11/16/2017 - 11:00 Relay Pk - Broncho Chutes Mount Rose Area Avalanche Observation
A close look at the photo taken on Nov 17 shows several crowns partially covered in storm snow.
Public

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