Whoomph!

Map for Mountain Information Network report: Whoomph!

Snow conditions

We rode:
  • Alpine slopes
  • Convex slopes
  • Steep slopes
  • Sunny slopes

Information

The day was:
  • Cloudy
  • Warm
  • 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.
  • Rapid temperature rise to near or above 0°C or wet surface snow.

Comments

Triggered a large Whoomph on a small convex roll just above circle lake, shooting cracks radiated above us for up to 5m in either direction, spaced up to 1m apart.

We dug down on the first fracture line and found it to be 150cm deep sitting on faceted snow, just above the Jan rain crust.

The area around circle lake is extremely wind affected, some area are scoured all the way down to the Jan rain crust. There are large thick windslabs on all aspects. Very spooky conditions indeed!