Weather and Avalanche Log for Tue Apr 11, 2023
2nd Night w/o freezing temperatures
22-23
Cornice Fall and wet loose avalanches
Date
Activity
Snowmobiling
From IG: “Couple shots from today In the cooke area.”
Region
Cooke City
Location (from list)
COOKE CITY
Observer Name
Aaron Mulkey
Natural wet loose in Bridgers
Date
Drove Bridger Canyon to Seitz road around 5pm on 4/10. Saw 4-5 D2 wet loose, plus many D1 wet loose. No huge slides or widespread large wet activity, yet.
Region
Bridger Range
Location (from list)
BRIDGER RANGE
Observer Name
Alex Marienthal
From an email referencing closed terrain within Big Sky Resort: "Numerous full depth wet loose naturals ran during the day on steep solar aspects in closed terrain including the Upper and Lower A-Z’s, Dirtbag Wall, Castro’s Shoulder and both Pinnacles. In addition, we pushed on numerous lower mountain road cuts that would generally run full depth onto the roads below." Photo: Big Sky Ski Patrol
Avalanche Details: Many Full Depth Wet Loose Avalanches at Big Sky
Forecast link: GNFAC Avalanche Forecast for Tue Apr 11, 2023
Northern Madison, 2023-04-10
Forecast link: GNFAC Avalanche Forecast for Tue Apr 11, 2023
Many Full Depth Wet Loose Avalanches at Big Sky
Big Sky Resort
Northern Madison
Code
WL-N-O
Aspect Range
SE - S - SW
Latitude
45.27600
Longitude
-111.43600
Notes
From email referencing closed terrain within Big Sky Resort: "Numerous full depth wet loose naturals ran during the day on steep solar aspects in closed terrain including the Upper and Lower A-Z’s, Dirtbag Wall, Castro’s Shoulder and both Pinnacles. In addition, we pushed on numerous lower mountain road cuts that would generally run full depth onto the roads below."
Number caught
0
Number buried
0
Avalanche Type
Wet loose-snow avalanche
Trigger
Natural trigger
Bed Surface
O - Old snow
Problem Type
Wet Snow
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Multiple Avalanches
Advisory Year
Wet Snow Avalanches between Idaho and Livingston
NORTHERN MADISON RANGE
Northern Madison
Code
WL-N
Latitude
45.29520
Longitude
-111.41000
Notes
From an email from a pilot flying over the mountains: "This afternoon en route back to Livingston from Idaho, lots of slide activity at all elevations…
Too many point releases to count in every range I’ve crossed today…"
Number caught
0
Number buried
0
Avalanche Type
Wet loose-snow avalanche
Trigger
Natural trigger
Problem Type
Wet Snow
Snow Observation Source
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Multiple Avalanches
Advisory Year
Cornice Fall, North Madison Range
NORTHERN MADISON RANGE
Northern Madison
Code
WS-N-R2-D2-O
Elevation
9800
Latitude
45.29520
Longitude
-111.41000
Notes
Number caught
0
Number buried
0
Avalanche Type
Wet slab avalanche
Trigger
Natural trigger
R size
2
D size
2
Bed Surface
O - Old snow
Problem Type
Cornice Fall
Snow Observation Source
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year
A pilot snapped some photos of a deep slab avalanche that released on April 6. He noted, "Too many point releases to count in every range I’ve crossed today…" Photo: Austin Timm, Yellowstone Air Service
Avalanche Details: Deep Slab Activity on Jumbo Mountain
Northern Madison, 2023-04-10
A pilot snapped some photos of a deep slab avalanche that released on April 6. He noted, "Too many point releases to count in every range I’ve crossed today…" Photo: Austin Timm, Yellowstone Air Service
Avalanche Details: Deep Slab Activity on Jumbo Mountain
Northern Madison, 2023-04-10
A pilot snapped some photos of a deep slab avalanche that released on April 6. He noted, "Too many point releases to count in every range I’ve crossed today…" Photo: Austin Timm, Yellowstone Air Service