| Posted: 9:15 a.m., Tuesday, December 13, 2005 |
Cloudless blue skies and a uniform blanket of new snow make the mountain look especially stunning today. The real stun however, will come when the winds pick up this afternoon. The 1.5"(3.25cm) of new snow covering the mountain will go airborne after falling under essentially calm conditions during the last 24 hours. You should know that this snow is no ordinary snow. This is the super light density snow that Utah powder snobs dream of. Unfortunately an inch and a half isn't enough to carve turns in considering our current base. But not only is it great for skiing, it's great for transport as even light winds have little problem relocating it. Winds have already begun to move to the NW and are expected to climb to 25-45mph(40-72kph) by this afternoon. Currently most of our forecast areas are at Low but they will be climbing into Moderate as winds ramp up. With today's clear skies you should be able to visually detect when transport begins. Snow blowing into start zones=bad news for stability. If winds stay constant at the top end of their forecasted speeds we may even see the areas in the direct lee approach the Considerable rating and natural activity will become more of a concern.
Even more of a hazard for most folks today is our weather. I know I said earlier how beautiful it was but I'm saying this from inside the cabin after spending a few hours outside this morning. Temps are brutally cold and falling rapidly. The Summit went from 0F(-18C) at 4am to -7F(-22C) by 7am. That's cold without the wind but add in a 40mph(64kph) headwind this afternoon and then tell me how beautiful it is! Can you say frostbite? Visitors must prepare for artcic conditions today that will be getting more severe as the day goes on. My advice- brew a strong cup of coffee and hang tough on the couch with a good book. I suggest something on the topic of faceting in the snowpack as we'll be watching what these cold temps do to our snowpack over the next couple of days. Stay tuned for more info in the days to come.
As mentioned, some areas still have the old raincrust showing. It's more stable than the fresh new snow but it should also be recognized as a potential hazard for travelers on the mountain. These slopes are very icy and crampons and an ice axe are essential for travel on open terrain of any steepness. Self arrest will only be effective if executed immediately, otherwise speed and the snow density may make attempts futile. Also remember that many summer trails go through avalanche terrain. Always use safe travel practices and think about snowpack stability not the "trail" underneath.
Don't wait any longer to refresh your avalanche skills. Pull out your beacon, practice, and spend a couple bucks on a fresh set of high quality batteries. Review your safe travel rules, techniques for assessing snow stability, and sign up for an avalanche course. We have all the avalanche courses offered in the Valley this winter on our website, tuckerman.org. Christmas is coming soon, so sign yourself or a loved one up now!
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Avalanche Advisory Archives.
United States Avalanche Danger Descriptions.
Échelle Canadienne de risque d’avalanche.
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