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. Please send us your observations using the buttons below.

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 bysort descending
1 km W of Castle Peak Donner Summit Area Snowpack Observation 12/19/2016 - 13:00 Educator
Donner Summit Avalanche Seminars
Andesite Peak Donner Summit Area Snowpack Observation 02/24/2017 - 10:45 Educator
Donner Summit Avalanche Seminars
Donner Ridge Donner Summit Area Snowpack Observation 03/12/2017 - 10:05 Educator
Donner Summit Avalanche Seminars
South of Frog Lake Cliff Donner Summit Area Avalanche Observation 03/14/2017 - 10:15 Educator
Donner Summit Avalanche Seminars
Donner Ridge Donner Summit Area Snowpack Observation 02/25/2017 - 10:30 Educator
Donner Summit Avalanche Seminars
Andesite Peak Donner Summit Area Snowpack Observation 03/13/2017 - 10:10 Educator
Donner Summit Avalanche Seminars
Slide Mountain Mount Rose Area Snowpack Observation 03/12/2017 - 11:00 Ski and boot supportable snow on solar aspects at 11:30am. Rough snow texture from previous wind and avalanche debris. Forecaster
Andesite Peak Donner Summit Area Avalanche Observation 02/20/2017 - 10:50 Initial cracks triggered by kicking on the upper part of slope which caused the avalanche down lower at the mid slope convexity.Initial cracks triggered by kicking on the upper part of slope which caused the avalanche down lower at the mid slope convexity.The small avalanche in which skier was caught.Red lines over crown of lower avalanche that occurred before ski pole drop. Green line over crown of small avalanche that carried skier.Skier with deployed airbag after being carried 200 vertical feet by small avalanche, no burial. Forecaster
Elephant's Hump Carson Pass Area Snowpack Observation 03/26/2017 - 11:00 Difficult to see in photo, but minor amounts of blowing snow visible in near and above treeline areas. Sun/melt-freeze crust that existed in the vast majority of areas, including on some steeper and/or shaded N aspects. Signs of settlement of recent storm snow. Forecaster
Andesite Peak Donner Summit Area Avalanche Observation 12/24/2016 - 11:30 MVI 3350 Forecaster
Rose Knob Mount Rose Area Snowpack Observation 03/17/2017 - 12:00 Below 8200' on E-SE-S aspects were unsupportable, wet, and sticky snow at 12noon. Sagging cornices have opened up large, deep cracks between cornice and ridgeline.. Forecaster
Tamarack Peak Mount Rose Area Snowpack Observation 02/08/2017 - 23:00 Settlement crack around a tree at 9000 ft. Small cornice pieces and ski kicks on wind loaded test slopes did not trigger cracking on the slopes. The cornice pieces just slide down on top of the slope. Rain runnels at 8900 ft. on a N aspect on Tamarack Peak. Forecaster
Ophir Peak Mount Rose Area Snowpack Observation 02/24/2017 - 12:00 Current wind effect from SW/W winds. Small new wind slabs were forming on N-NE-E aspects near summit ridge. Small localized cracking from recent wind deposits on N-NE aspects near peak. Forecaster
Castle Peak Donner Summit Area Snowpack Observation 01/02/2017 - 10:45 One of many wind loaded/wind slab test slopes that avalanched with minimal human triggering. Forecaster
Talking Mountain Echo Summit Area Snowpack Observation 12/31/2016 - 12:00 Coverage on North aspects along the ridge. Forecaster

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