Northern Gallatin

Natural avalanche on Cedar Mtn.

Cedar Mtn.
Northern Madison
Code
HS-NCu-R2-D3
Aspect
E
Latitude
45.22680
Longitude
-111.51200
Notes

From Big Sky Ski Patrol: "Also saw a large slide on one of the far ridges of Cedar that was not there yesterday and appears to be cornice triggered."

Number of slides
1
Number caught
0
Number buried
0
Avalanche Type
Hard slab avalanche
Trigger
Cornice fall
Trigger Modifier
u-An unintentional release
R size
2
D size
3
Problem Type
Wind-Drifted Snow
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year

Natural avalanche in wind-loaded snow near Mt Bole, Hyalite

Hyalite - main fork
Northern Gallatin
Code
SS-N-R2-D2-I
Aspect
SE
Latitude
45.44720
Longitude
-110.96200
Notes

From an observation: "We were up on the ridge off Palace Butte and saw this recent natural released slide. Crown was big in spots. Must have happened sometime over night or in the morning (1/29 or 1/30) perhaps from the recent wind loading. East, southeast facing, on the peak north of MT Bole."

Number of slides
1
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-Drifted Snow
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year

From an observation: "We were up on the ridge off Palace Butte and saw this recent natural released slide. Crown was big in spots. Must have happened sometime over night or in the morning (1/29 or 1/30) perhaps from the recent wind loading. East, southeast facing, on the peak north of MT Bole." Photo: A. Schrier

Northern Gallatin, 2020-01-31

From an observation: "We were up on the ridge off Palace Butte and saw this recent natural released slide. Crown was big in spots. Must have happened sometime over night or in the morning (1/29 or 1/30) perhaps from the recent wind loading. East, southeast facing, on the peak north of MT Bole." Photo: A. Schrier

Northern Gallatin, 2020-01-31

Small Wind Slab on Mt. Blackmore

Mt Blackmore
Northern Gallatin
Code
SS-AS-R1-D1-I
Elevation
9200
Latitude
45.44390
Longitude
-110.99700
Notes

Snow picked up at Mt. Blackmore with calm to light winds. Someone up there before us pulled out a small wind loaded pocket on the face leaving the basin.

Number of slides
1
Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Skier
R size
1
D size
1
Bed Surface
I - Interface between new and old snow
Slab Thickness
6.0 inches
Vertical Fall
50ft
Slab Width
20.00ft
Slab Thickness units
inches
Single / Multiple / Red Flag
Single Avalanche
Advisory Year