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
01/07/2019 - 13:00 Powderhouse Peak Luther Pass Area (including Job and Freel) Snowpack Observation New storm slab cracking on slope undercut by skin track. Flipping my ski pole upside down, the snow was quite resistant initially in the firm storm slab. Once through the storm slab, the snow was very soft for the rest of the length of my ski pole. Tree rings demonstrating snow settlement due to warming. Hand hardness overview of new snow. One finger hard slab, over fist hard storm snow. Professional Observer
12/15/2018 - 09:30 Trimmer Peak Luther Pass Area (including Job and Freel) Snowpack Observation Small wind slabs in below tree line areas Long shooting crack in near treeline area. About 300' down from ridge. Public
01/10/2019 - 11:30 Waterhouse Peak Luther Pass Area (including Job and Freel) Snowpack Observation Jumping on several summit ridge wind loaded test slopes produced little to no failure of wind slabs. Wind slab - very minor crack and the only cracking we could trigger on summit ridge test slopes. 2 to 5 mm surface hoar in upper elevation open areas, ~9,400', N aspect. 10 mm surface hoar along the summit ridge at ~9,480', N aspect. Forecaster
01/07/2019 - 10:00 Trimmer Peak Luther Pass Area (including Job and Freel) Snowpack Observation ECTP14 at buried facet layer facets under about 40cm of new snow on E aspect at 8000' large roller balls on E aspect with warm/wet new snow Public
01/16/2019 - 11:00 Powderhouse Peak Luther Pass Area (including Job and Freel) Snowpack Observation This crack shot out approximately 40 feet in front of my ski. Profile of where crack propagated. Professional Observer
12/27/2018 - 13:00 Trimmer Bonus Luther Pass Area (including Job and Freel) Snowpack Observation Professional Observer
01/16/2019 - 01:30 Bottom of Waterhouse Luther Pass Area (including Job and Freel) Snowpack Observation Educator
Alpine Skills International (ASI)
02/16/2019 - 22:00 Powderhouse Peak Luther Pass Area (including Job and Freel) Snowpack Observation Graupel was very widespread at Powerhouse this afternoon. Near the summit a fully extended pole could easily be buried up to the handle. Stormy day with strong winds near the ridges. Professional Observer
12/05/2018 - 12:30 Powderhouse Luther Pass Area (including Job and Freel) Snowpack Observation Public
01/24/2019 - 13:00 Waterhouse Peak Luther Pass Area (including Job and Freel) Snowpack Observation Cold snow with tree drippings on N aspects below treeline. Most prominent below 8,000'. Exposed rain cust visible above treeline in the distance on Steven's Pk, Red Lake Pk, and beyond. Cornices eroded by NE winds along the summit ridge. 1 cm melt freeze crust on S aspect at 9,490' Public
02/19/2019 - 13:45 Trimmer Peak Luther Pass Area (including Job and Freel) Snowpack Observation Public
01/18/2019 - 12:30 Powderhouse Luther Pass Area (including Job and Freel) Snowpack Observation Public
02/09/2019 - 12:00 Horse Meadow Luther Pass Area (including Job and Freel) Snowpack Observation Professional Observer
01/30/2019 - 13:30 Scotts Lake Luther Pass Area (including Job and Freel) Snowpack Observation Melting snow surfaces exposed to full sun. View of the S face of Waterhouse Peak Breakable crust present in some areas that receive partial shade Observation wall of the snowprofile highlighting the layer of buried surface hoar Pieces of buried surface hoar on the underside of a slab from a CT test Public
02/03/2019 - 12:00 Waterhouse proper E-SE side Luther Pass Area (including Job and Freel) Snowpack Observation Public

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