Natural Avalanche Activity, Cooke City

COOKE CITY
Cooke City
Code
SS-N-R3-D2.5-U
Elevation
10000
Aspect Range
N-NE-E
Latitude
45.02020
Longitude
-109.93800
Notes

Ob1: Photos 1-4, GNFAC

We rode out to Lulu Pass to look at the few avalanches that were reported yesterday on Henderson and Fisher Mtn. Today we did not see any avalanches that weren't previously reported, other than one small, but thick wind slab on south facing slope of Scotch Bonnet (photo). At least the avalanche on Fisher and one on Henderson broke near the ground (pics attached). Some slides were heavily refilled by drifted snow, so it was hard to tell how deep they broke.

Yesterday I saw a wide slab avalanche up on west Woody Ridge from town (photo attached). It happened late on Wednesday or overnight during or after the strong winds and snowfall.

 

Ob 2: B Fredlund, Photos 5-13

Quite a few natural avalanches observed north of Cooke City today.   Photos attached of:

5:  NE facing, 10,000, Miller Ridge

6:  E facing, 9900', Bull of the Woods Pass

7:  NE facing, 9700', Miller Ridge

8:  E facing, 10,200' Scotch Bonnet Mtn.

9:  E facing, 10,000 Mt. Henderson

10-12: NE- N facing, 10,000' Mt. Henderson

13:  NE facing, 10,000' Sheep Creek.

 

Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Natural trigger
R size
3
D size
2.5
Bed Surface
U - Unknown
Problem Type
Wind-Drifted Snow
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Multiple Avalanches
Advisory Year