Northern Gallatin

Cracking and collapsing near Palisade Falls

Date
Activity
Skiing

From instagram (2/23/24): Wide collapses and cracks reported near Palisades Falls above the east fork Hyalite road. 

Region
Northern Gallatin
Location (from list)
Hyalite - East Fork
Observer Name
Sawyet Haupt

Natural Avalanches near Divide Cirque

Divide Peak
Northern Gallatin
Code
N
Aspect Range
N-W
Latitude
45.40290
Longitude
-110.97600
Notes

From observations on 02/22/2024: "We toured to the east shoulder of Divide Peak today, 02/22/2024. We saw several natural avalanches on the north-facing terrain in Divide Cirque, below Hyalite Peak, and Overlook Mountain. These avalanches likely happened following a storm near the end of last week."

Number of slides
3
Number caught
0
Number buried
0
Trigger
Natural trigger
Problem Type
Persistent Weak Layer
Snow Observation Source
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Multiple Avalanches
Advisory Year

Kept it Conservative

Date
Activity
Skiing

We toured to the east shoulder of Divide Peak today, 02/22/2024. We saw several natural avalanches on the north-facing terrain in Divide Cirque, below Hyalite Peak, and Overlook Mountain. These avalanches likely happened following a storm near the end of last week. Near the base of Divide, we dug on a SE-facing slope at 9300' and had a stability score of ECTP30. From here, we continued up the shoulder, trying our best to stay on slopes near 30 degrees in steepness. At the top of the shoulder on an east slope at 9600', we dug another pit and found 133 cm of snow and had a stability score of ECTP20. In both our snowpits, we had a well-defined layer of weak faceted snow buried 2-3 feet deep. This is the layer our stability tests failed on. 

During our tour, we saw no cracking or collapsing, but recent natural avalanches near us and the large natural avalanche seen on Mt. Bole a few days ago encouraged us to keep our terrain choices conservative. We skied down near our skin track one at a time and avoided areas with terrain traps like gullies, cliffs, and thick trees below. 

Region
Northern Gallatin
Location (from list)
Divide Peak
Observer Name
Zach Peterson

Natural Avalanches on Mt. Bole, Hyalite

Mt. Bole
Northern Gallatin
Code
N
Latitude
45.41560
Longitude
-110.99700
Notes

From obs: "From the approach trail to Mummy II we saw two large crowns on the ridge associated with Mt. Bole. Not sure when they happened, but they looked pretty big! Observed Monday morning, February 19"

Number of slides
2
Number caught
0
Number buried
0
Trigger
Natural trigger
Snow Observation Source
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Multiple Avalanches
Advisory Year