A vigorous winter storm is upon us. Feet of heavy, wet snow and strong southerly wind call for HIGH avalanche danger. Natural and human triggered avalanches are likely. The next 24 hours will be the peak of the avalanche risk crescendo. Stay free and clear of avalanche terrain. Give the snow time to settle before slashing the steep and deep.
Human triggered, wind slab avalanches breaking anywhere within the feet of new snow are likely. Plenty of low density snow remains available for transport. Wind slabs will continue to build on W-NW-N-NE-E facing aspects. It will be best to avoid these areas completely over the next couple of days.
Significant snowfall will persist today. Expect rapid accumulation of new snow. Give this storm and our snowpack time to play out and settle. Pay attention to your surrounding terrain where avalanches may start, run and stop.
12.9.22 - Gray Butte - 7,500 feet - SE
Skier cut slab avalanche, below treeline
Terrain management is key in backcountry skiing, snowmobiling and avalanche safety. It is the only factor YOU can control while in or around avalanche terrain. Unlike the snowpack and weather, terrain doesn't change. Safely managing terrain is a skill that is critical to living a long and happy life in the backcountry. High avalanche danger days don't mean not to go skiing or riding, it means you better darn tootin' pay attention to terrain. It is the number one skill that can keep you safe in avalanche zones. Slope angle is one aspect of terrain management that is important to master. If you remember one thing, the majority of avalanches occur on slopes between 30-45 degrees, with a 'sweet spot' of 38-40 degrees. Start measuring slope angle with a smartphone clinometer app or check out cool slope angle shade maps at https://www.onxmaps.com/backcountry/app
TONIGHT, Saturday, Dec 10 is our annual Movie Night at the Mt. Shasta Community Center. We're showing the film "Buried" about the 1982 Alpine Meadows avalanche. Written, directed, and produced by Tahoe locals, the film chronicles one of the deadliest avalanches in US history, the miraculous rescue efforts, and the impact on the community of Lake Tahoe. Tickets can be purchased at the door for $15. Drinks and snacks will be available for purchase. Doors open at 5:30, film at 7. We'll see you there rain, snow or shine!
