Snowmobiler triggred slide near Lulu Pass, Cooke City

Lulu Pass
Cooke City
Code
AMu-I
Latitude
45.07090
Longitude
-109.95800
Notes

Doug talked on the phone with a snowmobiler who triggered a slide outside Cooke City today (3/15/2020). The details:

  • It occurred somewhere between Round Lake and Lulu Pass, likely nearer to Lulu.
  • It was snowing hard most of the day and they had poor visibility.
  • The slide was triggered by 1 sledder. He was not caught.
  • The avalanche broke 1 foot deep and 100 feet wide. It was believed to be new snow, but not wind-loaded.
Number of slides
1
Number caught
0
Number buried
0
Trigger
Snowmobile
Trigger Modifier
u-An unintentional release
Bed Surface
I - Interface between new and old snow
Problem Type
New Snow
Slab Thickness
12.0 inches
Slab Width
100.00ft
Slab Thickness units
inches
Single / Multiple / Red Flag
Single Avalanche
Advisory Year