Today we saw a D2 slab avalanche at Goose Lake, E facing, 10800 ft. We estimate this avalanche to have ran in the early hours of 3/17. Photo: BPG
Cooke City
Avalanche at Goose Lake
Date
Activity
Skiing
Today we saw a D2 slab avalanche at Goose Lake, E facing, 10800 ft. We estimate this avalanche to have ran in the early hours of 3/17. This was the only avalanche we observed in the past 4 days.
Region
Cooke City
Location (from list)
Goose Lake
Observer Name
J Mundt
No fresh avalanche activity observed. Attached is a photo of the only sign of a recent avalanche we could find. (an old crown on an East aspect at 9600'). Photo: B Fredlund
Avalanche Details: Old Wind Slab Avalanche South of Cooke
Cooke City, 2025-03-19
Avalanche on the SE face of Scotch Bonnet in Tragenic Bowl and one on the NE face of Wolverine. They both broke 2-4’ deep. The avalanche on Wolverine slide aprx 1500’. Both were in wind loaded areas at upper elevations. Photo: BPG
Avalanche Details: Wind Slab Avalanches on Scotch Bonnet and Wolverine
Forecast link: GNFAC Avalanche Forecast for Thu Mar 20, 2025
Cooke City, 2025-03-19
Forecast link: GNFAC Avalanche Forecast for Thu Mar 20, 2025
Cooke City, finding good stability
Date
Activity
Snowboarding
We were split boarding south of Cooke City today, up to terrain around 10'000', and finding good snow stability.
Weather was mostly cloudy in the am, partly cloudy in pm. Light winds from the SW.
No fresh avalanche activity observed. Attached is a photo of the only sign of a recent avalanche we could find. (an old crown on an East aspect at 9600').
No collapsing no cracking.
Storm snow: was measuring the HN to be around 50cms at 8500', and 70+cms at 9500'.
With a snowpit attached from a E, NE aspect around 9500'. CTN.
Wind effect: significant in localized places, from the St. Patrick's Day event. Wind drifts were not sensitive where we were traveling.
Region
Cooke City
Location (from list)
COOKE CITY
Observer Name
B. Fredlund
Obs N of Cooke
Date
Activity
Skiing
We skied north of Cooke today. The storm snow is upside down with a wind slab sitting on top. There is also a new dust layer that came in last night with the extreme winds. We had two collapses while skinning and ECTP13 down 60cm at the new/old interface on top of a crust, SE aspect at 9700'. Winds were L-M out of of the W and S2 snowfall all day with 8" new during the day.
Region
Cooke City
Location (from list)
COOKE CITY
Observer Name
Nina Marienthal
Dry Loose avalanches near Cooke
Henderson Mountain
Cooke City
Code
L-AS-D1
Elevation
9300
Aspect
E
Latitude
45.05240
Longitude
-109.94500
Notes
Today I triggered a D1 dry loose avalanche on a E facing 35 degree slope, 9300 ft on Mt Henderson. The new snow is very low density and is not bonding well to the old interface. I also observed some more dry loose activity/small wind slabs on Sheep Mt, NE facing, 10400 ft.
Number caught
0
Number buried
0
Avalanche Type
Loose-snow avalanche
Trigger
Skier
D size
1
Problem Type
Loose Dry
Snow Observation Source
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year
Small storm slabs and dry loose in Cooke
Abiathar Peak
Cooke City
Code
SS-AS
Latitude
44.97560
Longitude
-110.03100
Notes
Found 5-8” of fresh low-medium density snow. Triggered multiple small soft storm slabs/sluff which occurred on steeper slopes (40+ degrees).
Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Skier
Problem Type
Storm Slab
Snow Observation Source
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Multiple Avalanches
Advisory Year
"Today I triggered a D1 dry loose avalanche on a E facing 35 degree slope, 9300 ft on Mt Henderson. The new snow is very low density and is not bonding well to the old interface. I also observed some more dry loose activity/small wind slabs on Sheep Mt, NE facing, 10400 ft."
Forecast link: GNFAC Avalanche Forecast for Sun Mar 16, 2025