20-21

Natural avalanche in Maid of the Mist

Maid of the Mist
Northern Gallatin
Code
N-R2-D2
Elevation
9500
Aspect
E
Latitude
45.41640
Longitude
-110.97000
Notes

A natural avalanche occurred on an East aspect in the Maid of the Mist basin. It appeared to have slid last night/this morning. Visibility made it difficult to determine the extent of the debris or the depth of the crown.

Number of slides
1
Number caught
0
Number buried
0
Trigger
Natural trigger
R size
2
D size
2
Problem Type
New Snow
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year

Skiers remote triggered very large slide Ernest Miller Ridge

Ernie Miller Ridge
Southern Madison
Code
HS-ASr-R4-D2.5-O
Elevation
9700
Aspect
E
Latitude
44.95600
Longitude
-111.13200
Notes

From group: "We skinned into the Ernest Miller Ridge area this morning around 8:40am. There was 18-24 inches of fresh storm snow in the bacon rind creek area. As we skinned in, we observed whoomphing and cracking throughout the basin. We ascended right of the normal trail in mellower terrain to the lower bench area. We took a break there and after discussion of the terrain and safe areas to ascend were getting ready to head to the far lookers left trees. A giant collapse happened as we were standing there and sent an almost shockwave like effect up the hill, small ripples and cracks formed way above and away from us and the entire face of Ernest Miller Ridge ripped out and ran the distance of the ridge. We were out of the way of any runout zone and away from the face so in a safe space. It was the largest remote trigger that I have ever experienced and witnessed out in the field."

"Where we triggered the slide, the slope was about 24 degrees, it then triggers on 30ish degrees and then sent the rest of the basin."

Number of slides
1
Number caught
0
Number buried
0
Avalanche Type
Hard slab avalanche
Trigger
Skier
Trigger Modifier
r-A remote avalanche released by the indicated trigger
R size
4
D size
2.5
Bed Surface
O - Old snow
Problem Type
Persistent Weak Layer
Slab Thickness
24.0 inches
Vertical Fall
700ft
Slab Width
1000.00ft
Slab Thickness units
inches
Single / Multiple / Red Flag
Single Avalanche
Advisory Year

Skiers remotely triggered this slide, from low angle terrain, below and far to the side on 1/30/21. It is on Ernie Miller ridge near Bacon Rind on E aspect around 9,000' elev. Click below for more info.

Southern Madison, 2021-01-30

Skiers remotely triggered this slide, from low angle terrain, below and far to the side on 1/30/21. It is on Ernie Miller ridge near Bacon Rind on E aspect around 9,000' elev. Click below for more info.

Southern Madison, 2021-01-30

Skiers remotely triggered this slide, from low angle terrain, below and far to the side on 1/30/21. It is on Ernie Miller ridge near Bacon Rind on E aspect around 9,000' elev. Click below for more info.

Southern Madison, 2021-01-30