23-24

Wet slide near Emigrant Peak

Out of Advisory Area
Code
WS-N-R2-D2.5
Aspect
E
Latitude
45.26130
Longitude
-110.69800
Notes

From obs on 03/23/2024: "Debris field from likely a wet slide on a steeper slope in the back bowl near Emigrant peak. Slide was on an east-south/east facing slope. Not sure the date of slide. " 

Number of slides
1
Number caught
0
Number buried
0
Avalanche Type
Wet slab avalanche
Trigger
Natural trigger
R size
2
D size
2.5
Problem Type
Wet Snow
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year

Emigrant Gulch Pit and Natural Avalanche Obs

Date
Activity
Skiing

Toured up to Emigrant Gulch Bowls. Saw a pretty big natural avalanche on a NE facing slope. Saw the crown, it looked deep, and the debris was in large chunks and carried large trees down to the bottom. Our guess is wet-slide stepping down to deep slab on the weak layer at the bottom of the snowpack. We saw another decent natural on an adjacent slope with a similar aspect and many old wet-slides from last week on various aspects surrounding the Emigrant Gulch uptrack. 

Region
Out of Advisory Area
Location (from list)
Emigrant Peak
Observer Name
Oliver Cole, Max Mundt

Obs from bridger range

Date

Skied in Frazier and fairy lake area today. No signs of instability or wind loading on the north facing slopes we skied. We found a very firm crust layer under a few inches of new snow. The new snow was sluffing quite easily but wasn’t consolidated. It was lightly snowing all day but no wind to speak of moving the new snow around. 

Region
Bridger Range
Location (from list)
Frazier Basin

New Snow and Wind at Buck Ridge

Date
Activity
Snowmobiling

We rode up Buck Ridge towards the Bear Creek Wilderness boundary, along the way we found 6 to 10 inches of new snow that fell over the last 24 hours. In many areas this new snow has formed large drifts even in treed areas. Behind McAtee Basin, we saw a small natural wind slab avalanche on an east facing slope, and we saw a natural wind slab in Bear Creek. From a nearby ridge line we could see snow being transported at ridge tops. On a small test slope near Muddy Creek we intentionally triggered several small avalanches in wind loaded terrain. In First Yellow Mule we dug a snow pit on a north facing slope, at 9,300’. We saw ECTN 13 and 14 scores below the new snow.

Strong north wind prevailed through most of the day at or near ridge lines. We saw lots of evidence of both cross loading and wind loading on many slopes.

Region
Northern Madison
Location (from list)
Buck Ridge
Observer Name
Zach Peterson

Emigrant Snowpack

Date
Activity
Skiing

A partner and I toured up into the southeast bowl of Emigrant peak earlier today. New snow ranged from ~3-10 cm, increasing with elevation, and with surprisingly little wind affect. The consequences of the recent warm spell were still obvious, with a pervasive crust under the new snow, and one large recent wet slide. We dug on a northeast aspect at 9000' and got unremarkable test results (CT 15 Q2 on Depth Hoar, ECTN15 beneath the recent crust), and a similar structure to the rest of the region (Basal Facets, a large mid pack slab of rounds, and a complex of recent wet snow and crusts near the surface). Clouds obscured our view of the alpine, and we decided to keep to mellow terrain due to the low visibility and possibility of a consequential slide.

Region
Out of Advisory Area
Location (from list)
Emigrant Peak
Observer Name
Wyatt Hubbard