24-25

Whumphs

Date
Activity
Snowmobiling

Almost constant Whumphing at higher elevation. Saw couple days old avalanche on a windloaded east north east facing slope. This area in known as Yahoo.

Region
Island Park
Location (from list)
Mt Jefferson Bowl
Observer Name
Randy Gravatt

Fresh avalanches in Cabin Ck

Cabin Creek
Southern Madison
Code
Latitude
44.89490
Longitude
-111.22800
Notes

Group from Wisconsin spotted 3 very fresh avalanches today. 2 for them near Red Canyon and 1 near Whites Peak. No other info. Might get photos tomorrow. 
 

2 other slightly older slides spotted

Number of slides
3
Number caught
0
Number buried
0
Snow Observation Source
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Multiple Avalanches
Advisory Year

Fresh avalanches in Cabin Ck

Date
Activity
Snowmobiling

Group from Wisconsin spotted 3 very fresh avalanches today. 2 for them near Red Canyon and 1 near Whites Peak. No other info. Might get photos tomorrow. 
 

2 other slightly older slides spotted

Region
Southern Madison
Location (from list)
Cabin Creek
Observer Name
From R Searle via third party

Remote Trigger Avalanche near Sugar Loaf (Anaconda)

Other place
Butte Area
Code
SS-ASr-D2-I
Aspect
N
Latitude
46.02910
Longitude
-112.97200
Notes

A small slide was remotely triggered by the second skier catching up to the first skier.  We were skiing mellow terrain on the east side of a small ridge and remotely triggered the slide at a roll over point on the north aspect of the ridge.  Prior to skiing we conducted an extended column test on a near by north slope with good results but kept our path mellow do to some wind affect areas we noticed on the west side of the ridges. We skied to the debris pile after the slide stopped to take a picture and would estimate it broke 30 cm down at the base of the new snow over the last week. 

Number of slides
1
Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Skier
Trigger Modifier
r-A remote avalanche released by the indicated trigger
D size
2
Bed Surface
I - Interface between new and old snow
Problem Type
Wind-Drifted Snow
Slab Thickness
30.0 centimeters
Vertical Fall
200ft
Slab Width
75.00ft
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year

A small slide was remotely triggered by the second skier catching up to the first skier. ... We skied to the debris pile after the slide stopped to take a picture and would estimate it broke 30 cm down at the base of the new snow over the last week. Photo: Anonymous

Butte Area, 2025-01-06

Avalanche Below Maid of the Mist

Maid of the Mist
Northern Gallatin
Code
SS-R2-D2
Elevation
8200
Aspect
E
Latitude
45.41640
Longitude
-110.97000
Notes

A skier noted an avalanche below Maid of the Mist on January 6, 2025. From the photo, the avalanche appears to be relatively recent, 1-3 days old, and failed on persistent weak layers deeper in the snowpack. 

Number of slides
1
Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
R size
2
D size
2
Snow Observation Source
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year

Natural Avalanches on Cedar Mountain. NE and E aspects

Cedar Mtn.
Northern Madison
Code
N-R2-D2
Elevation
9400
Aspect Range
E - N
Latitude
45.22680
Longitude
-111.51200
Notes

Multiple large avalanches on different bowls and different aspects of Cedar. Photos taken from Yellowstone Club by YC Ski Patrol. NE and E aspects. Both approximately 9400 feet elevation. Shaded photo is N aspect, photo with sun and shade is NE.

Number of slides
2
Number caught
0
Number buried
0
Trigger
Natural trigger
R size
2
D size
2
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Multiple Avalanches
Advisory Year

The Yellowstone Club Ski Patrol noted multiple large avalanches on different bowls and aspects of Cedar Mountain at approximately 9400 feet elevation. Photo: YCSP

Northern Madison, 2025-01-06