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
12/08/2018 - 11:30 Castle Peak Donner Summit Area Snowpack Observation Extended column test with no failure, Snow pack was 125cm Surface hoar was seen almost everywhere, except for the most sunny areas. Public
03/21/2019 - 16:00 Eagle Lake Desolation Wilderness Area (including Emerald Bay) Snowpack Observation Glide Crack in top of underlying granite slab Public
01/16/2019 - 02:00 Incline Lake Peak Mount Rose Area Avalanche Observation Public
02/12/2019 - 12:30 The burn in Meyers Echo Summit Area Avalanche Observation Public
02/06/2019 - 14:00 Shirley Canyon Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation Public
02/26/2019 - 16:00 Picnic Rock Brockway Mount Rose Area Snowpack Observation Public
01/19/2019 - 11:45 Mt. Rose Mount Rose Area Snowpack Observation Public
02/16/2019 - 12:00 Powderhouse Luther Pass Area (including Job and Freel) Snowpack Observation Public
03/02/2019 - 12:00 Powderhouse Luther Pass Area (including Job and Freel) Snowpack Observation Public
03/10/2019 - 10:15 Johnson Canyon Donner Summit Area Snowpack Observation Cornice collapses Public
01/07/2019 - 11:00 Deep creek drainage Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation Ski cut above cat track produced failure on old snow rain crust/facet interface ~3’ down Public
01/23/2019 - 02:30 Tinkers Knob Area Cabin Creek, Deep Creek, or Pole Creek Area Snowpack Observation Public
12/01/2018 - 12:15 Gareth Feldstein Donner Summit Area Snowpack Observation Wind loading - small cornice 125cm weak top layer roughly 35cm Checking the crust @ 55cm - 30cm Crust @ 55cm Joe - extended column test (Low angle probably prevented negative test results) Wind loading along the ridge-line Lots of wind on the ridge-line Public
03/14/2019 - 15:30 Peter Leh Donner Summit Area Snowpack Observation Public
01/31/2019 - 12:15 Jake's Peak West Shore Area Snowpack Observation Public

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