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
11/29/2018 - 10:15 Andesite Peak Donner Summit Area Avalanche Observation Forecaster
11/29/2018 - 08:00 Tamarack Peak Mount Rose Area Snowpack Observation Public
11/28/2018 - 12:00 NW Castle Peak Donner Summit Area Snowpack Observation Light wind loading occurring off of summit ridge with cornice development. Wind loaded pillows showed minor cracking.  Forecaster
11/27/2018 - 11:00 Echo/Becker Ridge Echo Summit Area Snowpack Observation Pit location at 8,000', N aspect. 35-40 cm snow cover on ridgetop at ~7,800' with evidence of previous rain on snow. Another view of snow cover on ridgetop at ~7,900'. Forecaster
11/26/2018 - 12:00 Tamarack Peak Mount Rose Area Snowpack Observation True north aspects have the most snow with other aspects showing numerous rocks and bare patches. Looking down the Hourglass from the top of Tamarack Peak. Looking across at Relay Peak. Top of the Proletariat looking down. Forecaster
11/24/2018 - 12:00 Castle Peak Donner Summit Area Snowpack Observation Pooling water along the Castle Valley Road from 7200-7800' Rain runnels with wet snow to the ground below 7800' Rain crust up to peak at 9100'. Forecaster
11/24/2018 - 10:00 Meiss Carson Pass Area Snowpack Observation Professional Observer
11/23/2018 - 15:00 Upper Ophir Creek Drainage Mount Rose Area Snowpack Observation Wind slab over storm slab (hand shear) HS 35-55 cm 4f over F Shooting cracks Public
11/23/2018 - 12:30 Far East Ridge of Tamarack Peak Mount Rose Area Snowpack Observation Some skier triggered cracking on a small wind-loaded test slope Representative snow coverage in non-wind-loaded terrain. There were numerous exposed and barely covered rocks. Wind-loaded areas held more snow coverage, but the coverage decreased quickly below the ridges with many areas of bare ground still present. Numerous bushes, stumps, rocks, and other obstacles still exposed. Many areas of bare ground still remain due to a combination of wind-scouring and a lack of snow. Forecaster
11/23/2018 - 10:30 Grouse Rock Blackwood Canyon or Ward Canyon Area Snowpack Observation Public
11/22/2018 - 12:00 Elephant's Back Carson Pass Area Snowpack Observation Professional Observer

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