[MCR] Rogers Pass, conditions

Subject: [MCR] Rogers Pass, conditions
Date: Thu, 6 Dec 2012 17:32:00 -0800
Hello Everybody

Today we had a truly epic powder day on Grizzly Shoulder, skiing into the 
Grizzly Bowl and down to Connaught Creek. Ski penetration was anywhere from 
30cm to 50cm and boot penetration was variable up to 65cm. The upper snowpack 
was, in all skied areas, unconsolidated showing some inconsistency while pole 
probing. At 2200 m. elevation we have observed at several locations deep 
whumphing, however no cracking has been observed. Test snow profile at 
elevation 1630 metres aspect SE, open glade in between deep forest, down 55 cm  
shovel compression test on storm interface failing at moderate shear result 
with "resistant planar"   and down 70cm on November 28th layer the shovel 
compression test failed at moderate shear result with "resistant planar". A 
second test snow profile at elevation 2200 metres, directly below the top cliff 
of Grizzly Shoulder, aspect SW and exposed slope showed a snowpack of 245cm 
deep. Down 45cm shovel compression test on storm interface failed at moderate 
 shear result and "sudden planar", down 85cm on November 28th layer shovel 
compression test failed at moderate  shear result "resistant planar" and shovel 
shear test scoring at hard shear result. With the larger amounts of snow-fall 
we have received over the past days the November 6th crust was my largest 
concern, it was down 165cm and reacted to a hard shovel shear test result and 
with the shovel compression test  this layer failed with a lower hard result 
and surprisingly with "sudden collapse" shear characteristics.  

Skiing near tree-line and in the sub-alpine in the steep trees and narrow steep 
glades was amazing and I had no significant concerns. However at tree-line and 
in the alpine I was definitely reluctant in going near large slopes with steep 
incline. In these areas skier triggering of moderate size avalanches is 
definitely likely to very likely. 

Conditions will always change and usually unstable conditions don't last for 
ever. Even while skiing conservative lines we still have lots of fun in deep 
powder. The big slopes will not run away, but for now it is not advisable to 
ski steep open terrain, mostly near tree-line and definitely in the alpine. 

Enjoy the powder

Ruedi Beglinger
I.F.M.G.A. / A.C.M.G. Mountain Guide
www.selkirkexperience.com
info@xxxxxxxxxxxxxxxxxxxxx
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