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 Videos Observation made by
12/16/2016 - 07:00 Bronco Chutes Mount Rose Area Avalanche Observation
Looking up at several crowns that likely happened on 12/16 at the end of the recent storm.
A closer look at some of those crowns.
Forecaster
01/04/2017 - 16:00 Jakes Peak West Shore Area Avalanche Observation
Deep Slab at 8600' below treeline terrain.
Bed surface with some debris
Looking down part of avalanche path.
5' of recent storm snow on top of 12/15 rain crust and NCF's.
Forecaster
12/15/2015 - 10:30 Incline Lake Peak Mount Rose Area Avalanche Observation
Public
01/06/2016 - 08:00 Far East Ridge of Tamarack Peak Mount Rose Area Avalanche Observation
Forecaster
01/14/2016 - 06:34 From TD Downhill area Outside of the Forecast Area Avalanche Observation Public
01/19/2016 - 12:30 Andesite Peak Donner Summit Area Avalanche Observation
Forecaster
04/13/2017 - 16:00 Bowl north of Echo Peak Desolation Wilderness Area (including Emerald Bay) Avalanche Observation Public
12/24/2016 - 11:15 Lowest open pitch lookers right of traditional skin track Blackwood Canyon or Ward Canyon Area Avalanche Observation
Public
01/08/2017 - 08:00 Elephants Hump Carson Pass Area Avalanche Observation
The larger avalanche in near treeline terrain.
One of the below treeline wet deep slab avalanches.
Another of the below treeline wet deep slab avalanches.
Numerous wind slab and deep slab avalanches near Frog Lake.
Forecaster
01/21/2017 - 10:20 Tamarack Peak Mount Rose Area Avalanche Observation
Wind slab avalanche triggered from the lower angle ridge on a N-NE aspect 38 degree slope.
Long shooting crack triggered by a ski kick on a wind loaded test slope
Another smaller wind slab triggered by a ski kick on a N facing wind loaded test slope
Forecaster
02/25/2017 - 10:10 Fireplug Mount Rose Area Avalanche Observation
Public
04/10/2017 - 11:00 Above winnimucca lake Carson Pass Area Avalanche Observation Public
12/10/2016 - 11:00 Hourglass Bowl Mount Rose Area Avalanche Observation Public
12/27/2016 - 23:30 Above Crater lake, Red Lake Pk Carson Pass Area Avalanche Observation , , , , The snow on bed where failure occured. Public
01/04/2017 - 17:00 Jakes Peak West Shore Area Avalanche Observation
Wind Slab Avalanche, 9100', NE aspect, 38 degrees.
Forecaster

Pages

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