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03/26/17, 09:43 PM

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Author Topic: March 19, 2017, cross post from NWAC obs  (Read 2562 times)
rlsg
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Re: March 19, 2017, cross post from NWAC obs
« Reply #25 on: 03/23/17, 06:03 PM »

This time of year, for low elevation skiing in particular, I would be more reluctant to ski south facing slopes that are wind slabbed up than N ones..  Wouldn't they be more susceptible to instability due to more heating?
ditto persistent deep pack issues that could be stepped down to...
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rlsg
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Re: March 19, 2017, cross post from NWAC obs
« Reply #26 on: 03/23/17, 06:39 PM »

I've seen ski tracks that started from a traverse onto a slope and below a short distance of cornice and have observed from the dropping of the cornice, pillow/slab immediately under the cornice, propagate resulting in the whole slope going.  So glad   nobody was below in harms way.  That is a very common place from my experience, to find instability when everything else is "blower"..  Not sure what  a pit or compression test/ext column  test would tell me about this very localized sleeper of a phenomenon -- that more times than I care to ever know, that are lurking above people, who are primed for their freshies just below.  {wind transport/eddying affect or effect-- seems to form immediately under cornices}
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Re: March 19, 2017, cross post from NWAC obs
« Reply #27 on: Yesterday at 10:39:14 AM »

TAY !  Thanks for a great discussion. It's been a pretty fantastic  snow year. The last week of February and the first two weeks of March especially so with stable cold weather conditions and fresh snow almost every night. 

In the North Columbia and Cariboo the Avy situation became much more of a concern around the fifth or sixth of March as all of the new snow stressed a buried rain crust.  Avalanche.ca reported at that time that the snowpack had reached a "threshold" .   This was not welcome news as I was just leaving for a week long hut trip in the interior. 

That trip, as it turns out it was completely epic. The snow was thigh deep and well consolidated.  The snowpack sloughed is places as we skied but we did not trigger anything that ran large or long, or stepped down,  or made us question our decision to be out. 

On Sunday the 12th ( the last day of our tour) it warmed up above zero essentially ending a season that was all about the steep and deep.

Since then the mountains have become a disaster zone. On a recent trip back from Alberta a friend of mine told me that the mountains in glacier and the Monashees have all slid. Carnage was the word he used. There has been a lot of slide  activity in the Whistler Corridor is well. NWAC is reporting similar conditions n the cascades.  Nobody I know is doing any riding right now.

I'm not sure but maybe the season is over for me. The words that avalanche.ca are using to describe the current snowpack situation are "historic and unprecedented"

All of this beta from avy.ca, nwac, tay and observations from the field have given me reason to pause and while I was tempted to go poke  around at Mount Baker this morning  I made the decision to stay home, drink coffee, and read trip reports. To me the reward  just isn't worth the risk at this time of year under these conditions.   





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rlsg
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Re: March 19, 2017, cross post from NWAC obs
« Reply #28 on: Yesterday at 05:40:53 PM »

copy that!
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