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. This program is available as a free download at http://www.snowpilot.org/. A video on how to download and use this program is available here.

Location Region Observation Type Date and time of observation or avalanche occurrence Avalanche observation video Avalanche photos Snowpit videos (tests, etc) Snowpack photos Snowpit or crown profile photo or graph Observation made by
Andesite Ridge Donner Summit Area Snowpack Observation 11/17/2017 - 12:00 Rain runnels on the snow surface despite 3 to 5 inches of new snow after it stopped raining. Public
mt lincoln Donner Summit Area Snowpack Observation 11/17/2017 - 11:00 95cm total depth anderson ridge Public
Elephant's Back Carson Pass Area Snowpack Observation 11/17/2017 - 10:00 Professional Observer
Tamarack Peak Mount Rose Area Snowpack Observation 11/16/2017 - 12:00 Skier triggered cracking on a wind-loaded test slope on an E aspect at 9700 ft. Forecaster
Relay Pk - Broncho Chutes Mount Rose Area Avalanche Observation 11/16/2017 - 11:00 A close look at the photo taken on Nov 17 shows several crowns partially covered in storm snow. Public
tamarack peak Mount Rose Area Snowpack Observation 11/16/2017 - 10:15 Public
Tamarack. About 9,000’ Mount Rose Area Snowpack Observation 11/16/2017 - 10:00 Public
Hourglass bowl Mount Rose Area Avalanche Observation 11/16/2017 - 09:00 Public
Hourglass Bowl Mount Rose Area Avalanche Observation 11/16/2017 - 09:00 Forecaster
Tamarack Pk - Hourglass Bowl Mount Rose Area Avalanche Observation 11/16/2017 - 09:00 Public
East Ridge of Relay Pk Mount Rose Area Snowpack Observation 11/15/2017 - 12:00 Snowpit location as noted on map. 15 in of total snow depth. Forecaster
Rubicon Peak West Shore Area Snowpack Observation 11/15/2017 - 08:30 Large exposed anchors (aka rocks, stumps, logs, etc) on a north aspect at 8600 ft 55 cm deep snowpack consisting of moist new snow and moist larger grained old snow near the bottom. Snow coverage at 7500 ft. Snow coverage at 7200 ft. Forecaster
Castle Peak Donner Summit Area Snowpack Observation 11/14/2017 - 13:00 Snowpit location. Forecaster
Elephant's Back Carson Pass Area Snowpack Observation 11/14/2017 - 12:00 Noticeable soft snow below 4-5 cm wind slab in this location I was unable to find significant amounts of new snow on top of old (last year?) snow in this area. Snow cover on Round Top Snow almost nonexistent on lower elevation east face of Waterhouse peak. Barely adequate skinning coverage. Professional Observer
Silver Peak Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation 11/13/2017 - 13:00 Fairly thin snowcover on N aspect at 7,800'. Anchors negated. Deepening snowcover on N aspect at 8,000'. Anchors negated. Forecaster

Pages