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
02/23/2019 - 10:30 Ralston Peak Desolation Wilderness Area (including Emerald Bay) Snowpack Observation ECTP10 4 inches down on a windslab near the Ralston Summit, see observation location. Windslab failure from skinning above a tree moat. Ski track refilling from wind transport after 90 minutes. Public
03/10/2019 - 12:30 NE of Echo Peak Echo Summit Area Snowpack Observation CT11 & CT18 SP at 95 down on Graupel just above the Feb 14 rain crust. Graupel on the Feb 14 Rain crust at 95cm down. Public
03/28/2019 - 13:15 Just north of Mt Lola Independence Lake Area Avalanche Observation Public
02/12/2019 - 14:15 Jobs area Luther Pass Area (including Job and Freel) Snowpack Observation Wind transport on jobs Public
02/25/2019 - 13:15 Stanford Rock Blackwood Canyon or Ward Canyon Area Avalanche Observation Public
02/16/2019 - 10:30 Incline Peak Mount Rose Area Avalanche Observation Public
12/16/2018 - 10:00 Frog Lake into Red Lake Carson Pass Area Avalanche Observation Slide path 50yds from where avalanche was triggered The larger snow block is the size of a compact car for reference Public
03/02/2019 - 14:00 Schallenberger Donner Summit Area Snowpack Observation Public
12/02/2018 - 10:45 Red Lake Peak - Above Crater Lake Carson Pass Area Avalanche Observation Just before the avalanche was triggered. The skier that triggered it just did a ski cut and then a few more turns with no reaction other than loose sluff. The avalanche would be triggered on the next 1 or 2 turns. The skier that triggered the avalanche took this photo of the loose dry sluff just before the avalanche was triggered. Avalanche debris field. The path dog legs out of sight to the left. Looking back at the upper path of the avalanche. You can ski where the skier went over the buried rocks but was able to ski to safety. The upper crown is 12-14" and lower crown 24-30". Overview of avalanche crown. The first ski cut is visible as well as where the skier stopped after releasing the loose sluff. 24-30" avalanche crown Upper bowl of Red Lake peak is visible with previous ski tracks. The lower part of the avalanche path is obscured by a small ridge line with trees. Public
04/10/2019 - 14:00 Incline Peak Mount Rose Area Snowpack Observation 1"+ Wind affected but smooth cold new snow on higher 9400' N/NE aspects at 145p - Fog is from lens Smooth warm non-sticky South Facing turns to 8200' at 2p - supported on skis but shin deep w boots Public
01/13/2019 - 12:00 Heavenly Ski Area East Shore Area Snowpack Observation A view of the pit with distinct layers CT16 Q1 A view of the bottom of the block that released in the CT. Debris from a major wind event is evident. Public
03/06/2019 - 14:30 North ridge incline lake peak Mount Rose Area Avalanche Observation Small natural storm slab on convex unsupported slope ss-n-r2-d1.5 Larger storm slab (appeared to be natural) slide propagated around terrain feature and into adjacent bowl.  Public
03/24/2019 - 10:45 Avalanche Path on S side of Mt Ralston Echo Summit Area Avalanche Observation Arrow shows area where slide started Shows trigger point partial path Debris where it stopped on a bench across from our rest spot Public
02/21/2019 - 09:30 Highway Patrol Chutes Sawtooth Ridge to Tahoe City Snowpack Observation No visible signs of wind effect in the most recent snow. Public
02/09/2019 - 10:30 Mt Lola Independence Lake Area Snowpack Observation Public


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