21-22

Collapse in Pebble Creek, YNP near Cooke

Pebble Creek - YNP
Cooke City
Code
SS-AS
Latitude
45.02540
Longitude
-110.03100
Notes

Skiers had a large collapse (approx. 50' wide) in Pebble Creek on 3/5/22.

Number of slides
0
Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Skier
Problem Type
Persistent Weak Layer
Images
Pebble Creek Profile - 6 Mar 2022
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Red Flag
Advisory Year
21-22

Skier remote triggered near Cooke

Hayden Creek
Cooke City
Code
SS-ASr-R2-D2-O
Elevation
8600
Aspect
SE
Latitude
44.99520
Longitude
-109.90800
Notes

Reported to BPG on Saturday 3/5.

Number of slides
1
Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Skier
Trigger Modifier
r-A remote avalanche released by the indicated trigger
R size
2
D size
2
Bed Surface
O - Old snow
Problem Type
Persistent Weak Layer
Images
Remote triggered avalanche near Cooke
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year
21-22

Wet loose activity from days past

Date
Activity
Skiing

Observed a lot of wet loose activity from the past few day’s warm spell while guiding in Bacon Rind today. Nothing super noteworthy avalanche-wise as far as today’s conditions go, but holy hell is the skiing bad down there.  Robust MF crust on all aspects, I’m anticipating the classic crust/facet combo to develop shortly so that might be a concern once we get more snow soon, or dare I say IF we get more snow… 

Region
Southern Madison
Location (from list)
Bacon Rind
Observer Name
Henry Coppolillo

Stable snow in Maid of the Mist

Date
Activity
Snowboarding

Some spots of dry loose activity on east facing slopes where the melt freeze crust was bullet proof. Higher in the basin the crust wasn't as thick but still supported our weight. No propagation in our tests. ECTN 13 15cm below surface with 10cm of new snow and Q3 shear quality on shovel shear test and compression test. Skied fat maid 

Other than that lots of old activity from wet loose and one broken cornice from Arden Peak.

Region
Northern Gallatin
Location (from list)
Maid of the Mist
Observer Name
Scott
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