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
03/03/2018 - 12:30 Andesite Peak Donner Summit Area Snowpack Observation Small wind slab failure. Skin track refillafter 45 min by wind drifted snow on the summit of Andesite Pk. Forecaster
03/29/2016 - 11:30 Fireplug Mount Rose Area Snowpack Observation Forecaster
01/14/2018 - 13:30 East Ridge Tamarack Peak Mount Rose Area Snowpack Observation Forecaster
12/04/2016 - 10:30 Relay Peak Mount Rose Area Snowpack Observation Forecaster
02/16/2017 - 12:00 Ophir Peak Mount Rose Area Snowpack Observation Large snow transport amounts over Slide Mountain. Small test slopes did not show any signs of cracking or propagation. Forecaster
02/07/2016 - 12:00 South Side Jakes Peak West Shore Area Snowpack Observation Forecaster
11/09/2015 - 10:20 Castle Peak, SW ridge Donner Summit Area Snowpack Observation Forecaster
04/18/2018 - 10:30 Rubicon Peak West Shore Area Snowpack Observation Increasing cloud cover and the approaching storm. Breakable crust was widespread on E-NE-N aspects at all elevations Graupel layer at the base of the recent snow. Forecaster
03/08/2017 - 11:30 Rubicon Peak West Shore Area Snowpack Observation Signs of significant settlement of recent storm snow.Skier triggered roller ball at 8,000' on NNE aspect at 11:30am.Natural roller balls on Crag Peak, E aspect, 9,000'.Site of testpit to examine wind slab. Forecaster
11/15/2017 - 12:00 East Ridge of Relay Pk Mount Rose Area Snowpack Observation Snowpit location as noted on map. 15 in of total snow depth. Forecaster
03/12/2017 - 11:00 Slide Mountain Mount Rose Area Snowpack Observation Ski and boot supportable snow on solar aspects at 11:30am.Rough snow texture from previous wind and avalanche debris. Forecaster
02/11/2018 - 12:00 Elephant's Hump Carson Pass Area Snowpack Observation Looking across at the E and SE aspects of Red Lake Peak with the N aspects of Elephant's Hump in the foreground.Ski tracks showing soft snow in the shade and icy crusts in the sun.Significant melting that has occurred on an E-NE aspect at 7900 ft. on the skin into Elephants Hump. Forecaster
11/17/2017 - 12:00 Tamarack Peak Mount Rose Area Snowpack Observation Forecaster
01/07/2017 - 11:00 East Ridge Tamarack Peak Mount Rose Area Avalanche Observation
Large cornices with a collapsed section and wind slab avalanche below.
Large cornices with a collapsed section and wind slab avalanche below.
Debris below wind slab
Another cornice collapse
False color image to show debris downslope.
Forecaster
12/19/2017 - 11:15 Slab Cliffs Mount Rose Area Snowpack Observation Significant wind scouring below treeline that had occured sometime after mid day on Dec 16. Forecaster

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