24-25

Snowmobile triggered avalanche Buck Ridge

Date
Activity
Snowmobiling

From IG message: “Buck ridge, snowmobile triggered avalanche. Propagated storm slab.”

Region
Northern Madison
Location (from list)
Buck Ridge
Observer Name
Clay Erhard

Dry Loose Snow Avalanche Ghost Couloir

Sheep Creek
Cooke City
Code
L-N-R1-D1-S
Latitude
45.03440
Longitude
-109.98400
Notes

Today we saw a D1 dry loose in the Ghost Couloir. It ran 200 feet. We also felt one small collapse on a south facing slope. No other avalanches observed.

Number of slides
1
Number caught
0
Number buried
0
Avalanche Type
Loose-snow avalanche
Trigger
Natural trigger
R size
1
D size
1
Bed Surface
S - Avalanche released within new snow
Problem Type
Loose Dry
Vertical Fall
200ft
Snow Observation Source
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year

Many Wind Slab Avalanches Hayden Creek

Hayden Creek
Cooke City
Code
SS-N-R2-D2-I
Elevation
9800
Aspect
E
Latitude
44.99520
Longitude
-109.90800
Notes

In Hayden Creek, we saw many D1-D1.5 wind slab avalanches seen on leeward slopes- east and northeast slopes at and above treeline. We observed cracking in wind loaded areas above treeline. Dug a pit and did a quick ECT on E facing terrain at 9750ft. HS 190-210. ECTN6 30cm deep. No dirt layer. 

Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Natural trigger
R size
2
D size
2
Bed Surface
I - Interface between new and old snow
Problem Type
Wind Slab
Slab Thickness
12.0 inches
Vertical Fall
400ft
Slab Width
150.00ft
Snow Observation Source
Slab Thickness units
inches
Single / Multiple / Red Flag
Multiple Avalanches
Advisory Year

Many Wind Slab Avalanches Hayden Creek

Date
Activity
Skiing

In Hayden Creek, we saw many D1-D1.5 wind slab avalanches seen on leeward slopes- east and northeast slopes at and above treeline. We observed cracking in wind loaded areas above treeline. Dug a pit and did a quick ECT on E facing terrain at 9750ft. HS 190-210. ECTN6 30cm deep. No dirt layer. 

Region
Cooke City
Location (from list)
Hayden Creek
Observer Name
Noah Mattes

Dry Loose Snow Avalanche Ghost Couloir

Date
Activity
Skiing

Today we saw a D1 dry loose in the Ghost Couloir. It ran 200 feet. We also felt one small collapse on a south facing slope. No other avalanches observed.

Region
Cooke City
Location (from list)
Sheep Creek
Observer Name
Jake Mundt