AST 1 - HBM Backcountry

Map for Mountain Information Network report: AST 1 - HBM Backcountry

Snow conditions

Riding quality was:
Good
Snow conditions were:
  • Powder
  • Wind affected
We rode:
  • Mellow slopes
  • Open trees
We stayed away from:
  • Alpine slopes
  • Convex slopes
  • Steep slopes

Information

The day was:
  • Cloudy
  • Cold
  • Stormy
  • Windy
Avalanche conditions
  • Slab avalanches today or yesterday.
  • 30cm + of new snow, or significant drifting, or rain in the last 48 hours.
  • Whumpfing or drum-like sounds or shooting cracks.

Comments

AST 1 class observations : Cold - 12c and windy, with easterly outflow winds, and light snow all day. 10cm of low density snow fell today and last night, and is drifting & creating windslabs in exposed areas at treeline and above. We had lots of cracking and easy shears in freshly loaded test slopes, and we observed a size 1 slab avalanche, 4-6 hrs old on a steep windloaded southwest aspect at treeline. Below treeline, the top 30cm is loose and dry. We found the Nov 7 crust down 60cm, and seems to be around 100cm snowpack depth at treeline, in sheltered areas.