Portal Creek
Northern Gallatin
Code
SS-AMu-R2-D2-O
Latitude
45.28900
Longitude
-111.14100
Notes
From obs. 4/4/20: "Avalanche today up portal creek. 2 1/2 ft crown and 4 - 5 ft runout. Triggered by snowmobile. Everyone was safe!"
Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Snowmobile
Trigger Modifier
u-An unintentional release
R size
2
D size
2
Bed Surface
O - Old snow
Problem Type
Persistent Weak Layer
Slab Thickness
30.0 inches
Slab Thickness units
inches
Single / Multiple / Red Flag
Single Avalanche
Advisory Year