Human triggered wet-loose sluff triggered a dry slab while traversing the top of the slope. Powdercloud was observed at the bottom. Most of the debris looks wet from the multiple wet-loose sluffs that released during the afternoon.
Avalanche: Hatcher Pass
Location: Stairstep spines area
Human triggered wet-loose sluff triggered a shallow soft slab.
Crust with sun affected areas.
No avy activity in morning, but observed wet-loose activity on southerly aspects in afternoon.
Forecaster Comments
| Trigger | Snowboarder | Avalanche Type | Wet Loose Snow |
| Aspect | South Southwest | Elevation | 3200ft |
| Slope Angle | unknown | Crown Depth | 12in |
| Width | 100ft | Vertical Run | 2000ft |
Avalanche Details
Human triggered Wet sluff on S/SW aspect triggered a dry slab on W/NW aspect. Triggered by traversing slope.
Obvious signs of instability
| Recent Avalanches? | Yes |
| Collapsing (Whumphing)? | No |
| Cracking (Shooting cracks)? | No |
Observer Comments
HEAT- wet loose activity during the afternoon
Weather
SUNNY
Snow surface
CRUSTY
Snowpack
variable
Wet Slab - 1 (1)