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 Snowpack, Avalanche, Weather Videos Snowpit videos (tests, etc) Observation made by
02/22/2019 - 05:30 Hope valley sno park Carson Pass Area Snowpack Observation Public
01/07/2019 - 15:00 Incline Lake Peak Mount Rose Area Snowpack Observation Kicking at the uphill side of the skin track yielded storm slab cracking at 8,400 feet. ECTN12 20cm down at the bottom of the dense storm slab. N aspect at 9,100 feet. CT8 at the same storm slab layer as the ECTN. This compression test also broke CT24 Q2 at the top of the crust sandwich layer in the old snow Public
03/09/2019 - 13:15 Blue Lakes Carson Pass Area Avalanche Observation Public
02/24/2019 - 14:15 Johnson Canyon Donner Summit Area Avalanche Observation Small intentionally triggered wind slab on test slope Public
12/01/2018 - 12:30 Tamarack peak East aspact at 9800' Mount Rose Area Snowpack Observation Public
02/27/2019 - 12:30 Echo Peak Echo Summit Area Snowpack Observation Public
03/30/2019 - 12:30 Mt. Rose Mount Rose Area Avalanche Observation Public
12/04/2018 - 03:00 Thunder Saddle Carson Pass Area Snowpack Observation Public
02/02/2019 - 02:30 .5 km west of the grill/Tom’s meadow Independence Lake Area Avalanche Observation Public
02/17/2019 - 13:00 Donner Ridge Donner Summit Area Snowpack Observation Skin track, ski pen 10-15cm, ski pole pen 110cm Wind scouring on ridge by Donner Rim trail Public
03/16/2019 - 11:15 Slide mountain Mount Rose Area Snowpack Observation S and SE aspects on Mt. Rose proper as seen from Slide Mtn. Public
03/03/2019 - 16:00 Elephant Hump Ridgeline Carson Pass Area Avalanche Observation First view of slide as I approached on skin track Debris pile an cornice and face that slid Skin track often comes out of the woods on the flat shelf in the center of this photo Public
04/06/2019 - 12:30 Waterhouse Peak Luther Pass Area (including Job and Freel) Avalanche Observation Public
02/18/2019 - 01:30 Rubicon Peak West Shore Area Snowpack Observation Public
03/21/2019 - 12:00 Tamarack Peak Mount Rose Area Snowpack Observation Very small roller balls on a 20 degree slope. None were observed larger than a billiard ball all day. 15cm of fist hardness storm snow on top of 20cm of 1F snow, under that pencil hardness. ECTN6. New storm snow would fracture at the new/old snow interface, but no propagation occurred. Small cornices at the top of hourglass bowl, NE aspect Public


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