Yak Ridge - Avalanche

Map for Mountain Information Network report: Yak Ridge - Avalanche

Information

Avalanche date/time
Sunday, February 28, 2021 at 19:00
Estimated occurrence time of avalanche
Less than 12 hours ago
Number of avalanches in this report
1
The size of avalanche
2
Slab thickness
15cm
Slab width
50m
Run length
70m
Avalanche Character
  • Storm slab
  • Wind slab
Trigger type
Skier
Trigger subtype
Remote
Remote trigger distance
5m
Start zone aspect
  • N
  • NE
Start zone elevation band
  • Alpine
Start zone elevation
1,730m
Start zone incline
25°
Weak layer crystal type
  • Storm snow
Vegetation cover
Sparse trees or gladed slope

Comments

Heavy winds are moving snow S to N.

S aspect was extremely wind effected. As we made our way into the N aspect and into the 1700m elevation the wind increased and the snow became worrisome. We decided to transition and on the first pitch from the transition the storm/wind slab fractured a few meters away from the skied turns as the second skier descended along the treeline, propagating across the slope. The snow moved with good power and could have easily swept and buried a skier.