21-22

Ross Peak – Propogation in Pit

Date
Activity
Skiing

After weighing our options of where to ski today, my partner and I decided to head towards Ross Peak with the intention of checking out the Banana Couloir. The Brackett Creek road was hardly covered with the new snow and it was not snowing when we left the carpark at 10am, though we could see clouds and precipitation on the ridge. We approach along the road before ducking into the woods and slowly made our way up a ridge before emerging on final approach slope to the top of the Banana Couloir.

We dug a snowpit at an elevation of approximately 8100' on a 34 degree, E facing slope near where the approach got steeper to check the stability before proceeding. We were surprised to find a very shallow snowpack of only ~80cm. We performed an ECT to test the stability of the snowpack. We were mostly concerned with how the new snow was bonding and reacting. However, we got a score of ECTP13 on an old melt-freeze layer approximately 35cm from the ground with a Q1-2 shear quality. We were not expecting this result. Given this information, we decided to not ski any further up the approach slope towards the Banana and instead skied back down the approach gully.

We made our way to Texas Meadows, where we found good snow and good skiing.

Region
Bridger Range
Location (from list)
Ross Peak
Observer Name
J. Northcutt

Skiers reported shooting cracks from their skis while ascending the terrain at Bridger Bowl. The group later remotely triggered an avalanche from 100'+ away that ran through the "Pearly Gates" and "Patrol Chute". 

Bridger Range, 2022-04-23

Skiers reported shooting cracks from their skis while ascending the terrain at Bridger Bowl. The group later remotely triggered an avalanche from 100'+ away that broke in both "Patrol Chute" and the "Pearly Gates". 

Bridger Range, 2022-04-23

Shooting Cracks at Bridger Bowl

Bridger Bowl
Bridger Range
Code
Latitude
45.81560
Longitude
-110.92300
Notes

Skiers reported shooting cracks from their skis while ascending the terrain at Bridger Bowl. The group later remotely triggered an avalanche from 100'+ away. 

Number of slides
0
Number caught
0
Number buried
0
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Red Flag
Advisory Year

Remote Triggered Avalanche in Patrol Chute and the Pearly Gates

Bridger Bowl
Bridger Range
Code
SS-ASu-R2-D1.5-I
Elevation
8300
Aspect
E
Latitude
45.81560
Longitude
-110.92300
Notes

A group of skiers was ascending above the top of the Bridger Lift. They had noticed many signs of instability such as shooting cracks and the new snow "rippling downhill". They choose to ski down before getting into the steeper terrain above them. A couple of turns into the run they noticed the steep slope above avalanche. They were not caught or affected by this slide. The slide ran in both the "Patrol Chute" and "Pearly Gates" areas. 

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
2
D size
1.5
Bed Surface
I - Interface between new and old snow
Problem Type
New Snow
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year

Skier Triggered Avalanche in Mad Man's

Bridger Bowl
Bridger Range
Code
SS-ASu-R3-D2-I
Aspect
NE
Latitude
45.81560
Longitude
-110.92300
Notes

From obs: "Skier-triggered avalanche in madman’s couloir. 1 participant caused on 2nd turn and self arrested 3rd. 6" deep crown entirety of chute running 500' feet and burying north bowl road. Propagated storm slab on old snow/moguls."

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
3
D size
2
Bed Surface
I - Interface between new and old snow
Problem Type
New Snow
Slab Thickness
6.0 inches
Vertical Fall
500ft
Slab Width
20.00ft
Slab Thickness units
inches
Single / Multiple / Red Flag
Single Avalanche
Advisory Year

Madman’s glide slide

Date
Activity
Skiing
Snowboarding

Skier triggered avalanche in madman’s couloir, 1 participant caused on 2nd turn and self arrested 3rd.  6 inch deep crown entirety of chute running 300* feet and burying north bowl cattrack. Propagated storm slab on old snow/moguls. Please warn the public of *maximum danger* worst observed in 6 years of bbowl post season skiing. 

Region
Bridger Range
Location (from list)
Bridger Bowl
Observer Name
Baconcheddamon