We experienced all types of weather today, sunshine, light snow showers, and light to moderate winds. Temperatures stayed cool throughout the day and the lack of intense sun kept most snow surfaces dry.
We observed blowing snow at all elevations where there was dry snow available for transport.
Jan 7, 2022
Ahtanum Meadows; Middle Fork Ahtanum Road
Traveled up the Middle Fork Ahtanum Meadows to Darland Mountain via snowmobile. This was our first real look into the East South zone and gave us an opportunity to investigate the snowpack through a variety of aspects and elevations.
At about 5400ft on a south aspect, there was debris from a natural D2 avalanche that ran over the groomed snowmobile track. This likely ran on Jan 7th or 8th from a combination of wind loading and warming temperatures. The crown was no longer visible and the starting zone was being reloaded by west winds.
3000-4000ft: The snowpack was moist with a melt-freeze crust on the surface.
4000-5500ft: HS 90cm at 4800ft. A stout melt-freeze crust with 1-3inches of snow on the surface.
5500ft-6800ft: HS 220cm at 6600ft on an East aspect. The crust was not present above approximately 5500ft and the snowpack was generally strong with a variety of storm interfaces from Jan 5-8th. A 25cm deep interface showed resistant planer results in stability tests.
CTM13 ↓25cm RP
CTH22 ↓55cm Non-planer break