[MCR] Purcells, International Basin, Feb 11-14

Subject: [MCR] Purcells, International Basin, Feb 11-14
Date: Fri, 15 Feb 2008 11:08:11 -0700
Report for Feb 11-14 in the International Basin hut (Mark Kingsbury Hut) at
the headwaters of Bobbie Burns creek, Purcells.

Flying in on Feb 11th Monday observed evidence of natural avalanche cycle
likely occuring on Sunday Feb 10th running on Jan 26 interface.

Feb 11th Monday, test profile at 2250m, South aspect above the hut revealed
200cm snowpack with compression test moderate sudden planar on Jan 26
interface 43cm down.

Stormed Feb 11th to 12th bringing approximately 30cm of snow and strong
Westerly winds switching to Northerly. Isolated natural avalanches size 2
observed on the 13th either initiating under steep rocks or from cornice
failure on a variety of aspects running on the Jan 26 interface.

Temperatures for the 4 days ranged from -8 to -1 degrees Celsius. After the
storm on Feb 11th-12th, Jan 26th interface is  approximately 70cm down and
it was snowing as we flew out on 14th. The glacier to the
Battlement-Sandiland col had average 3+m snowpack.

                                                                           
 Garth Lemke                                                               
 Public Safety Warden                                                      
 ACMG Assistant Ski Guide                                                  
                                                                           
 Garde de parc, Sécurité publique                                          
 Guide de ski auxiliaire, Association des guides de montagne canadiens     
                                                                           
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 Garth.Lemke@xxxxxxxx                                                      
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