McAtee Basin
Northern Madison
Code
HS-AMu-R3-D2-O
Elevation
9600
Aspect
NE
Latitude
45.17690
Longitude
-111.45200
Notes
From obs: "Triggered a large slide with a snowmobile. Went all the way to the ground. Crown seemed to range anywhere from maybe 3 ft to 10 ft. Large slabs of snow broke free and slid for about 100 yards."
A second sled-triggered slide occurred Saturday (2/20) on the ESE facing slope at the entrance to McAtee Basin. SS-AMu-R3-D2-O
Number caught
0
Number buried
0
Avalanche Type
Hard slab avalanche
Trigger
Snowmobile
Trigger Modifier
u-An unintentional release
R size
3
D size
2
Bed Surface
O - Old snow
Problem Type
Persistent Weak Layer
Slab Thickness
60.0 inches
Vertical Fall
100ft
Slab Width
200.00ft
Weak Layer Grain type
Depth Hoar
Images
Attached Videos
Slab Thickness units
inches
Single / Multiple / Red Flag
Multiple Avalanches
Advisory Year