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
02/10/2019 - 11:30 Cottonwood Hill Sawtooth Ridge to Tahoe City Snowpack Observation ECTN14 @ 45cm down. After 30 taps and no failure, we pulled on the back of the column and it broke cleanly. Public
01/19/2019 - 12:30 ~30 meters SW of Lake Mary Donner Summit Area Snowpack Observation Public
02/24/2019 - 15:00 Verdi peak Outside of the Forecast Area Avalanche Observation Public
11/29/2018 - 08:00 Tamarack Peak Mount Rose Area Snowpack Observation Public
02/16/2019 - 12:00 Powderhouse Luther Pass Area (including Job and Freel) Snowpack Observation Public
12/19/2018 - 10:30 Rubicon Peak West Shore Area Snowpack Observation Shooting Cracks in Wind loaded area Near Treeline Public
01/27/2019 - 14:30 White Rock Lake and surrounding are Independence Lake Area Snowpack Observation Public
03/02/2019 - 12:00 Powderhouse Luther Pass Area (including Job and Freel) Snowpack Observation Public
01/16/2019 - 09:30 Picnic Rock Brockway Sawtooth Ridge to Tahoe City Avalanche Observation Public
02/21/2019 - 07:30 Jake’s Peak West Shore Area Snowpack Observation Surface hoar Graupel Public
02/09/2019 - 15:00 Brockway Summit Sawtooth Ridge to Tahoe City Snowpack Observation Small cracking in a very soft slab. The larger cracks we saw later were approximately the same depth. Public
02/24/2019 - 12:00 Jake's Peak West Shore Area Snowpack Observation Public
02/08/2019 - 11:00 Mt. Tallac Desolation Wilderness Area (including Emerald Bay) Snowpack Observation Public
02/12/2019 - 12:30 The burn in Meyers Echo Summit Area Avalanche Observation Public
01/22/2019 - 11:15 Relay Peak Mount Rose Area Snowpack Observation Public

Pages

Subscribe to Central Sierra Nevada / Lake Tahoe Snowpack, Weather, and Avalanche Observations for California and Nevada from SAC