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
02/25/2016 - 12:00 Red Lake Peak Carson Pass Area Snowpack Observation Professional Observer
03/06/2018 - 12:00 Elephants Hump Carson Pass Area Snowpack Observation Deep fractures on ENE portion of slope. Deep fractures on NE portion of slope. Boot pack is out of view to the left. Boot pack area, likely trigger. A few small cracks visible on upper right side. Facets from the weak layer in the snowpit. Forecaster
02/22/2018 - 12:00 Frog Lake Ridge Carson Pass Area Snowpack Observation Professional Observer
02/09/2016 - 12:00 Caples Lake Carson Pass Area Snowpack Observation Public
01/05/2018 - 12:00 Red Lake Peak Carson Pass Area Snowpack Observation ECTP's on facet layer buried below slab.Coverage on N side Red Lake PeakSmall roller balls skier triggered. Forecaster
01/17/2016 - 23:30 Crater Lake Road Carson Pass Area Avalanche Observation
Professional Observer
01/09/2018 - 02:00 Elephants Hump Carson Pass Area Avalanche Observation
Forecaster
01/24/2016 - 08:21 Kirkwood Nordic Face Carson Pass Area Snowpack Observation

Snow Pit 1/25/16

Public
11/21/2015 - 11:05 Elephant's Hump Carson Pass Area Snowpack Observation Forecaster
12/18/2016 - 12:00 Red Lake Peak Carson Pass Area Avalanche Observation
Public
11/19/2017 - 13:00 Elephant's Back and Round Top Carson Pass Area Snowpack Observation Professional Observer
12/22/2017 - 11:00 Alhambra Mine gulch Carson Pass Area Snowpack Observation Variable conditions on a north east facing slopeOld crown below east facing ridgePit adjacent to old crownCrust on top of NSFs failed upon isolation or a single CT tapECTs didn't propagateSastrugi from previous east windIceMeiss Meadows Professional Observer
01/13/2017 - 16:00 Frog Lake Ridge Carson Pass Area Snowpack Observation A very thin crust (likely created by freezing fog/mist) on top of fresh snow.Sastrugi growing into the East wind.Settlement cones were widely observed.A west facing slope exhibiting wind slab development. Professional Observer
11/27/2017 - 12:00 Shoulder of Elephant Back above large shelf Carson Pass Area Avalanche Observation
I was exiting above the rock in the center.
Looking down form where I exited the ridge. Notice the crack
Looking up. The highest part went the farthest, but was mostly sluff
Public
04/03/2016 - 09:30 Carson Pass - N side Carson Pass Area Snowpack Observation Forecaster

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