| Trigger | Cornice | Avalanche Type | Cornice Fall |
| Aspect | Northwest | Elevation | 4000ft |
| Slope Angle | 70deg | Crown Depth | unknown |
| Width | 100ft | Vertical Run | 1000ft |
Avalanche: Chugach State Park
Location: Williwaw Lakes, Chugach Front Range
Out touring around the Williwaw Lakes above Anchorage.
Avalanche Details
We watched a massive cornice avalanche off a sub peak of Williwaw. It sent up a large powder cloud and the debris looked dry.
Weather
Beautiful day!
Snow surface
Variable wind board, smooth corn, powder, old freezing rain crust....
Snowpack
Variable, but not signs of instability.
The terrain near Williwaw Lakes where we saw the cornice fall.
Photo of the cornice that broke off yesterday. It's above the big rock face. It broke off when we were further down the valley, so I couldn't get a photo of the action.