20-21

Lick Creek SW aspect

Date
Activity
Skiing

ECTP16 down 53cm on faceted particles

Small rollerballs on S to W facing slopes

Small temperature inversion present (-17 deg C at parking lot and -12 deg C at summit)

Region
Bridger Range
Location (from list)
Lick Creek
Observer Name
Owen Miller

Natural avalanche on Henderson Ridge, Cooke City

Henderson Bench
Cooke City
Code
N-R2-D2
Aspect
NE
Latitude
45.05580
Longitude
-109.94700
Notes

This natural avalanche occurred on a wind loaded, NE aspect above Henderson Bench outside Cooke City. Wind-loading has been the main avalanche concern.

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

YNP

Date

While leaving Cooke City, we saw this avalanche across the road from the soda butte. The slope was heavily wind loaded and the avalanche appeared to be bison triggered.

Region
Out of Advisory Area
Observer Name
Alex Palombo

Large natural avalanche on Mt. Abundance, Cooke

Mt. Abundance
Cooke City
Code
HS-N-R4-D3
Elevation
10000
Aspect
SE
Latitude
45.06870
Longitude
-110.01600
Notes

This large avalanche on the SE face of Mt Abundance, north of Cooke City, released naturally in the last 48 hours. In the photo you can see the fingers of windblown snow from strong westerly wind.

Number of slides
1
Number caught
0
Number buried
0
Avalanche Type
Hard slab avalanche
Trigger
Natural trigger
R size
4
D size
3
Problem Type
Persistent Weak Layer
Vertical Fall
1000ft
Slab Width
750.00ft
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year