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
04/11/2016 - 14:45 Proletariat - Tamarack Peak Mount Rose Area Avalanche Observation
Public
11/27/2016 - 09:51 Grouse Rock Blackwood Canyon or Ward Canyon Area Avalanche Observation
Guide
Alpenglow Expeditions
01/11/2017 - 12:00 Mt. Rose Highway Mount Rose Area Avalanche Observation
Relay Peak.  East Face, 10,200'.
Fireplug.  E/SE. 9200'.
Rose Knob/3rd Creek. S aspect. 9400'.
Incline Lake Peak.  SE aspect, 9200'.
Mt. Houghton.  S/SE aspect, 10,000'.
Mt. Houghton.  SE aspect, 8800'.
Forecaster
02/12/2017 - 12:30 Due south of Rose Knob Peak Mount Rose Area Avalanche Observation
Aftermath of Avalanche near Rose Knob Peak.
Avalanche Path in Yellow.
Public
02/03/2016 - 23:19 Symphony Bowl-South Slide Mtn Mount Rose Area Avalanche Observation
Public
03/31/2016 - 10:00 Fireplug Mount Rose Area Avalanche Observation
Forecaster
11/11/2015 - 13:30 Elephant's Hump Carson Pass Area Avalanche Observation
Public
01/07/2016 - 10:50 Andesite Peak Donner Summit Area Avalanche Observation
Guide
Tahoe Mountain School
01/14/2016 - 13:00 Tallac Corkscrew bowl, skiers left entry Desolation Wilderness Area (including Emerald Bay) Avalanche Observation This is the crown profile, The crown from below, this shows about half the total crown I believe, This is the debris field, the arrow marks where the snowboarder had ended up in the tree and was buried up to his waist.  His head and neck were above the snow the whole time, and had no injuries., This pit below the final ridge on the skin track, East facing, 33degrees 9000ft shows the weak layer which was very reactive CT3 for me and CT 13 for the one on the right.  Not sure if this is a new layer or if this is an older, seems like a new layer and the new storm snow/wind slab.
Public
03/15/2017 - 11:47 Donner Peak Donner Summit Area Avalanche Observation
Loose wet avalanche size D2 triggered by natural cornice collapse.
Loose wet avalanche size D2 triggered by natural cornice collapse.
Forecaster
03/25/2017 - 11:30 Cathedral Bowl Castle Peak Donner Summit Area Avalanche Observation
Public
04/10/2016 - 13:30 Woods Lake near Lost Cabin Mine Carson Pass Area Avalanche Observation
Public
12/10/2017 - 11:35 Mount Price Desolation Wilderness Area (including Emerald Bay) Avalanche Observation Public
12/16/2016 - 12:30 East Face of Judah Donner Summit Area Avalanche Observation
Viewed from the top of Donner Peak
Guide
Alpenglow Expeditions
12/24/2016 - 13:45 E judah Donner Summit Area Avalanche Observation
Guide
Alpenglow Expeditions

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