23-24

From text message: "The attached picture is a little slide that went off when I was doing small turns on an adjacent slope. That's Beaver Slide! There was more small slides south in the trees. Heard whumphing here and there." Photo: J. Onken

Southern Madison, 2023-12-05

Remote Triggered Avalanche - Beaver Slide

Taylor Fork
Southern Madison
Code
SS-AMu-R2-D1.5-O
Elevation
9000
Aspect
N
Latitude
45.06070
Longitude
-111.27200
Notes

From text message: "The attached picture is a little slide that went off when I was doing small turns on an adjacent slope. That's Beaver Slide! There was more small slides south in the trees. Heard whumphing here and there." Photo: J. Onken

Number of slides
2
Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Snowmobile
Trigger Modifier
u-An unintentional release
R size
2
D size
1.5
Bed Surface
O - Old snow
Problem Type
Persistent Weak Layer
Vertical Fall
75ft
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Multiple Avalanches
Advisory Year

Remote Triggered Avalanche - Beaver Slide

Date
Activity
Snowmobiling

From text message: "The attached picture is a little slide that went off when I was doing small turns on an adjacent slope. That's Beaver Slide! There was more small slides south in the trees. Heard whumphing here and there."

Region
Southern Madison
Location (from list)
Taylor Fork
Observer Name
Jackie Onken

Thin weak snowpack up Blackmore

Date
Activity
Skiing

Toured up to the east ridge of Blackmore.  About what you’d expect. Old snow was only about 20cms deep.  Mix of crusts and facets depending on aspect.  New snow from the past few days ranged from 10cms-30cms in the most wind loaded areas.  Experienced whoomfing and collapsing while skinning in wind loaded areas.  Very bony skiing off the lower ridge.  Walked the trail back down due to lack snow.

Region
Northern Gallatin
Location (from list)
Mt Blackmore
Observer Name
Brian Sienkowski

Skied south of Cooke City today.  LOTS of collapsing and cracking. (maybe 30 good collapses throughout the day)  Felt confident that one could have easily triggered an avalanche today if they wanted to.  

New snow:  about 10cms more last night.  Warmer temps, so the new snow was slightly upside down from the weekend's fresh snow.

ECTP2 on a west aspect at 9200'.  Snowpit attached.  

New/ old snow interface is the layer of primary concern.  (persistent slab problem)

No avalanche activity observed.

Cooke City, 2023-12-04