You are here

Snowpack, Weather, and Avalanche Observations

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. MSAC 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 Regionsort descending Observation Type Date and time of observation or avalanche occurrence Videos Avalanche photos Videos Snowpack photos Snowpit or crown profile photo or graph Observation made by
Old Ski Bowl, Avalanche Gulch Snowpack Observation 01/16/2018 - 11:00pm View from Bunny Flat View from Old Ski Bowl Weather Station View from 11000 ft in Avalanche Gulch Wind Effected Snow A beautiful day on the mountain Professional Observer
Lower Sunbowl Snowpack Observation 12/15/2016 - 10:30pm Professional Observer
Middle Peak, Castle Lake Avalanche Observation 04/13/2017 - 10:30pm Professional Observer
Old Ski Bowl - Near Treeline Snowpack Observation 01/18/2017 - 9:30pm 1-18-27:  Mt Shasta - near treeline Forecaster
Shastarama, Red Butte Snowpack Observation 03/26/2018 - 7:00pm Wind Transporting SnowStrong Winds Transporting Snow N-NE Winds Transporting Snow Down Ridgelines 5-12 cm (2-5 in) of Ski Penetration Red Butte Solar Radiation Effecting Sun Exposed Aspects and Surfaces Deeper Dryer Snow on Northerly Aspects Professional Observer
Tour of the forecast area Snowpack Observation 01/12/2018 - 9:00pm Bunny Flat trailhead, south side of Mount Shasta Snowmobile launch ramp. Sledders, stick to the lower half of the parking lot, below the bathrooms please! Do not park in the middle of the road. Snowmobile launch ramp. Sledders, stick to the lower half of the parking lot, below the bathrooms please! Do not park in the middle of the road. The one dry patch above gate on Everett Memorial Hwy. All snow past here. The one dry patch above gate on Everett Memorial Hwy. All snow past here. Eddy Mountains from east/northeast Eddy Mountains from Lake Siskiyou Eddy Mountains Eddies, nearing Parks Ck Summit Western side of Eddies, near Parks Ck Summit Parks Ck road, near summit Chutes and Ladders area, Eddies Southerly view from Parks Ck road summit, Eddies Last drift before Parks Ck Summit Castle Lake, high and dry, Left Peak Castle Lake, high and dry, Middle Peak Castle Lake, high and dry, Right Peak Forecaster
Castle Lake Castle Lake Snowpack Observation 12/27/2016 - 8:00pm Professional Observer
Avalanche on Left Peak Castle Lake Avalanche Observation 03/06/2017 - 6:45pm Public
Castle Lake Castle Lake Snowpack Observation 12/24/2017 - 10:00pm Forecaster
Castle Lake Castle Lake Avalanche Observation 02/07/2017 - 1:00pm Forecaster
Right Peak Castle Lake Avalanche Observation 03/04/2017 - 7:00pm Board of Directors
Castle Lake Castle Lake Snowpack Observation 03/07/2018 - 8:30pm Right Peak, Castle Lake Left Peak, Castle Lake Forecaster
West Side: Mumbo Basin & Whalen Summit Castle Lake Snowpack Observation 03/29/2018 - 8:00pm Trinity Mountains Mumbo Basin snow survey Forecaster
Middle Peak Castle Lake Snowpack Observation 12/04/2016 - 5:30pm Professional Observer
Castle Lake Castle Lake Snowpack Observation 12/23/2016 - 12:30am Forecaster

Pages