21-22

Hebgen

Date
Activity
Snowboarding

I toured up the area above Hebgen lake today
Snow depth was a bit thin down low but quickly increased
The new snow was was not bonding well to the old snow surface
While skinning up hill or small pillows the new snow would fracture and slide down hill

I stuck to the area directly to the north shortly after you enter the trees off the lake

I dug a pit below the ridge but did not top out due to the conditions

I kept to low 30 deg terrain and avoided roll overs

My snow pit results are as follows
I dug a pit around 8600’
120cm snow depth
Failed at ground on facets
Ectp 10

Overall there is weak snow on the ground with a pretty dense slab sitting on top of it

Attached are photos of the failure layer and the fracturing of the new snow

Region
Lionhead Range
Location (from list)
Hebgen Lake

Avalanche Cycle in the Centennial Mtns

Mt Jefferson Bowl
Island Park
Code
HS-N
Aspect Range
N-E
Latitude
44.56580
Longitude
-111.50000
Notes

A large avalanche cycle occurred around Mt Jefferson, Reas Peak and Hellroaring Creek around the 28th of December. Slides ran on faceted snow near the ground and they propagated far and wide. 

Number caught
0
Number buried
0
Avalanche Type
Hard slab avalanche
Trigger
Natural trigger
Problem Type
Persistent Weak Layer
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Multiple Avalanches
Advisory Year

West side bridgers

Date

Small storm slabs breaking in front of me as I ski down. 2 wimpy crust layers with 6 to 8 inches of faceted snow in between. I’m anticipating horrible skinning

Region
Bridger Range
Location (from list)
Truman Gulch
Observer Name
P Hinz