19-20

From obs: "Saw an unintentional ski cut at tower 11 on slushmans lift go 16 inches deep and ran down past tower 3 on lift line today. We had 8 inches from sat/sun and another 8 during the day today." Photo: P. Hinz

Bridger Range, 2020-04-15

Long running skier triggered slide in new snow in Bridgers

Bridger Bowl
Bridger Range
Code
SS-ASu-R1-D1.5-O
Latitude
45.81560
Longitude
-110.92300
Notes

From obs on 4/14: "Saw an unintentional ski cut at tower 11 on slushmans lift go 16 inches deep and ran down past tower 3 on lift line today. We had 8 inches from sat/sun and another 8 during the day today."

Number of slides
1
Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Skier
Trigger Modifier
u-An unintentional release
R size
1
D size
1.5
Bed Surface
O - Old snow
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year

Small skier triggered slide on Wheeler

Wheeler Mountain
Northern Gallatin
Code
SS-AS-R1-D1-S
Elevation
7500
Aspect
N
Latitude
45.50970
Longitude
-111.08200
Notes

From obs (4/12/20: "While on a tour today up Wheeler, I was able to release a small dry loose slide on a N. aspect at 7500 feet. The slide was about 8 inches deep and only ran for 100 feet."

Number of slides
1
Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Skier
R size
1
D size
1
Bed Surface
S - Avalanche released within new snow
Problem Type
New Snow
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year

Wet slide debris in Beehive and Dudley

Beehive Basin
Northern Madison
Code
WL-N-R3-D2.5
Elevation
9200
Aspect
SE
Latitude
45.34070
Longitude
-111.39100
Notes

From obs (4/12/20): "Noticed this slide yesterday evening on the way out of Beehive Basin, on the southeast facing aspect . It appeared to have come all the way down from the upper portion of the ridge on steeper slopes. We figured it slid sometime Thursday or Friday in the high temps. There were several other debris paths, but this was the biggest by far." 

From obs (4/18/20): "This slide appeared to have happened a few days prior to when we observed it on the 16th. When we skied the skiable terrain at Dudley Creek the snowpack was stable, though snow coverage was thin."

Number of slides
3
Number caught
0
Number buried
0
Avalanche Type
Wet loose-snow avalanche
Trigger
Natural trigger
R size
3
D size
2.5
Problem Type
Wet Snow
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Multiple Avalanches
Advisory Year