Pit 2
44.95982, -111.09903
100cm snow depth
ECTP17. Failed on faceted layer 30cm above the ground.
sugary fist snow 20-30cm above the ground; somewhat consolidated 4F storm slab 30-60cm; powder fist snow 60-95cm
Photo: R Cocco
Southern Madison
Toured up northwest of the bacon rind trailhead to the ridge. Did two pits, both with similar failures on the buried weak layer during ECT.
Pit 1
44.96190, -111.08941
95cm snow depth ECTN21. Failed on faceted snow that existed 23-35cm above the ground.
Photo:R Cocco
Expected Weak Layer Failures Observed
Date
Activity
Skiing
Toured up northwest of the bacon rind trailhead to the ridge. Did two pits, both with similar failures on the buried weak layer during ECT. Pleasant skiing in low angle terrain. Roller balls made an appearance down low @ 7400”.
Pit 1
44.96190, -111.08941
95cm snow depth ECTN21. Failed on faceted snow that existed 23-35cm above the ground.
Pit 2
44.95982, -111.09903
100cm snow depth
ECTP17. Failed on faceted layer 30cm above the ground.
sugary fist snow 20-30cm above the ground; somewhat consolidated 4F storm slab 30-60cm; powder fist snow 60-95cm
Region
Southern Madison
Location (from list)
Bacon Rind
Observer Name
Remo Cocco
Whumpfs and Shooting Cracks in the S Madisons
Other place
Southern Madison
Code
Latitude
45.12470
Longitude
-111.26900
Notes
We observed many large whumps and shooting cracks while headed up the meadows of Cinnamon mountain today, several of which were large enough to shake nearby saplings. These collapses were likely triggering on the recently buried layer of basal facets. Conditions included warm temps, light SW winds, overcast to obscured cloud cover, and S-1 to S1 precip including steady graupel. Nothing particularly surprising considering the conditions in nearby areas, and we chose to keep our terrain choices conservative.
Number caught
0
Number buried
0
Snow Observation Source
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Red Flag
Advisory Year
Hwy 191 Avalanche 3-Jan-25
Cabin Creek
Southern Madison
Code
SS-AV-R4-D1-O
Elevation
7000
Aspect
E
Latitude
44.83200
Longitude
-111.07800
Notes
Small slopes at low elevations were avalanching including some along Hwy 191 in YNP. It's always a bad sign when road cuts are avalanching. .
Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Vehicle ( specify vehicle in comments)
R size
4
D size
1
Bed Surface
O - Old snow
Problem Type
Persistent Slab
Vertical Fall
30ft
Slab Width
300.00ft
Snow Observation Source
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year
Small cut bank slide Teepee Creek Trail
Cabin Creek
Southern Madison
Code
SS-AM
Elevation
8200
Aspect
S
Latitude
44.85280
Longitude
-111.16600
Notes
Small slopes at low elevations were avalanching including some along Hwy 191 in YNP. It's always a bad sign when road cuts are avalanching.
Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Snowmobile
Problem Type
Persistent Slab
Images
Attached Videos
Snow Observation Source
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year
Second photo of an avalanche likely triggered by a snowplow flinging snow onto the shoulder along 191 inside YNP. Not a dangerous avalanche but an indicator of dangerous conditions higher up in the mountains where the snow is deeper
Avalanche Details: Hwy 191 Avalanche 3-Jan-25
Southern Madison, 2025-01-03
Avalanche likely triggered by a snowplow flinging snow onto the shoulder along 191 inside YNP. Not a dangerous avalanche, but an indicator of dangerous conditions higher up in the mountains where the snow is deeper
Avalanche Details: Hwy 191 Avalanche 3-Jan-25
Forecast link: GNFAC Avalanche Forecast for Sat Jan 4, 2025
Southern Madison, 2025-01-03
Forecast link: GNFAC Avalanche Forecast for Sat Jan 4, 2025
Cut bank avalanche 3 Jan 25 along the Teepee Creek snowmobile trail
Avalanche Details: Small cut bank slide Teepee Creek Trail
Forecast link: GNFAC Avalanche Forecast for Sat Jan 4, 2025
Southern Madison, 2025-01-03
Forecast link: GNFAC Avalanche Forecast for Sat Jan 4, 2025