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
01/03/2018 - 12:20 West Grouse Blackwood Canyon or Ward Canyon Area Snowpack Observation Thin but supportable snowcover on SE side of Grouse Rock.NE aspect at 8,100' with snowcover 30 cm or less under thick forest canopy. Over 100 cm snowpack in open areas on same slope.Minimal cracking in open below treeline area of soft slab over facets. Forecaster
12/24/2016 - 11:00 S side Ward Canyon Blackwood Canyon or Ward Canyon Area Avalanche Observation
Guide
Donner Summit Avalanche Seminars
11/07/2017 - 11:30 Barker Peak Blackwood Canyon or Ward Canyon Area Snowpack Observation Snowpit locationN aspect snowcover of 11 inches at ~8,000'. Forecaster
02/01/2017 - 12:00 Blackwood Ridge Blackwood Canyon or Ward Canyon Area Snowpack Observation Surface hoar on thin crust in large open areas well below treeline.Overrunning cloud cover associated with incomming storm system. Forecaster
02/22/2018 - 13:45 Grouse rock Blackwood Canyon or Ward Canyon Area Snowpack Observation Small loose dry avalanche, Skin track filled back in - less than 1 hour Guide
Tahoe Mountain School
11/26/2017 - 12:00 Barker Peak Blackwood Canyon or Ward Canyon Area Snowpack Observation 2' of snow at 8020', NE aspect on Barker PeakRain runnels throughout area at 7800'.Mostly supportable snowpack made up of wet grains and crusts. Forecaster
12/27/2015 - 12:00 Stanford Rock Blackwood Canyon or Ward Canyon Area Snowpack Observation Forecaster
01/13/2016 - 12:35 Ridge east of Tinker Knob Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation Public
02/02/2018 - 12:15 N. Ridge of Silver Peak Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation ECTP 29 SP @68 cm Educator
Tahoe Mountain School
01/10/2017 - 15:00 Deep Creek Cabin Creek, Deep Creek, or Pole Creek Area Avalanche Observation
Overview of the slide
The climbers left flank
Another overview
Debris and knocked over trees.
Forecaster
02/22/2017 - 13:00 Silver Peak Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation Cornice piece dropped onto a wind-loaded slope. It only triggered  sluffing  in the new snow and rolled down the slope.Settlement cracks around a treeWind scouring on a N-NE aspect near the Silver ridgeline Forecaster
01/06/2017 - 14:33 Deep Creek Cabin Creek, Deep Creek, or Pole Creek Area Avalanche Observation Shooting cracks
Slope step down
Public
12/26/2015 - 12:30 South Ridge- Deep Creek Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation Small, unstable wind loaded slab.Small, unstable wind loaded slab. Public
01/18/2016 - 12:00 Silver Peak Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation Forecaster
12/30/2016 - 10:30 National Geographic Bowl Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation Guide
Alpenglow Expeditions

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