22-23

Skier triggered and caught near Round Lake

COOKE CITY
Cooke City
Code
SS-ASu-R2-D1.5-S
Elevation
9400
Aspect
S
Latitude
45.07620
Longitude
-109.91300
Notes

From IG message 2/25/23: "Hey just wanted to report a Cooke city avalanche from today. Happened at 3pm caused by a skier coming down a south facing slope above Round Lake. Everyone was fine, he lost his skis and everyone learned"

Number of slides
1
Number caught
1
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Skier
Trigger Modifier
u-An unintentional release
R size
2
D size
1.5
Bed Surface
S - Avalanche released within new snow
Problem Type
Wind-Drifted Snow
Slab Thickness
10.0 inches
Vertical Fall
100ft
Slab Width
42.00ft
Slab Thickness units
inches
Single / Multiple / Red Flag
Single Avalanche
Advisory Year

From IG message 2/25/23: "Hey just wanted to report a Cooke city avalanche from today. Happened at 3pm caused by a skier coming down a south facing slope above Round Lake. Everyone was fine, he lost his skis and everyone learned"

Cooke City, 2023-02-26

Skier triggered wind slab, S. Gallatin

SOUTHERN GALLATIN RANGE
Southern Gallatin
Code
SS-ASc-R2-D1-I
Latitude
45.04320
Longitude
-110.96200
Notes

Triggered wind slab in southern Gallatins

Number of slides
1
Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Skier
Trigger Modifier
c-A controlled or intentional release by the indicated trigger
R size
2
D size
1
Bed Surface
I - Interface between new and old snow
Problem Type
Wind-Drifted Snow
Slab Thickness
8.0 inches
Vertical Fall
50ft
Slab Width
20.00ft
Snow Observation Source
Slab Thickness units
inches
Single / Multiple / Red Flag
Single Avalanche
Advisory Year

Triggered wind slab

Date
Activity
Skiing

Triggered wind slab in southern Gallatins

Region
Southern Gallatin
Location (from list)
SOUTHERN GALLATIN RANGE
Observer Name
Alec Fletcher

Shooting cracks and collapses in the Lionhead

Date
Activity
Skiing

Experienced whumpfs, cracking, and remotely triggered collapses on E aspects at 9000’ near ridgelines. The wind slabs were very reactive but thin, ranging from 2” to 5” deep. 

Region
Lionhead Range
Location (from list)
Hebgen Lake

Skier triggered and caught near Round Lake

Date
Activity
Skiing

From IG message 2/25/23: "Hey just wanted to report a Cooke city avalanche from today. Happened at 3pm caused by a skier coming down a south facing slope above Round Lake. Everyone was fine, he lost his skis and everyone learned"

Region
Cooke City

Natural Avalanche on E. Henderson Bench

Henderson Bench
Cooke City
Code
SS-N-R2-D2-O
Elevation
9700
Aspect
E
Latitude
45.05580
Longitude
-109.94700
Notes

This natural avalanche was seen today on E. Henderson Bench.

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
O - Old snow
Snow Observation Source
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year