Lionhead Range

Natural and Snowmobile Triggered Avalanches at Lionhead

Lionhead Ridge
Lionhead Range
Code
SS
Latitude
44.71450
Longitude
-111.31800
Notes

Plenty of wind slabs ranging in size on Lionhead ridge and on surrounding slopes. Noticed a few natural slides on the way in, a few more on the way out that were rider triggered. Snow was quite wet by this afternoon @8500’. 

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

Wind slabs at Lionhead

Date
Activity
Snowmobiling

Plenty of wind slabs ranging in size on Lionhead ridge and on surrounding slopes. Noticed a few natural slides on the way in, a few more on the way out that were rider triggered. Snow was quite wet by this afternoon @8500’. 

Region
Lionhead Range
Location (from list)
Lionhead Ridge
Observer Name
Riley

Excellent riding 1-3 feet new good base

Date
Activity
Snowmobiling

Sunday, 2/2, excellent trail condition to Independence thanks to SGCRA volunteers. On top around Monument Pk, still have rocks just under the surface.  Excellent riding in the trees approaching Blue Lk and Baboon. This new storm is all we need for prime riding conditions.  

Region
Out of Advisory Area
Location (from list)
Independence Mine
Observer Name
Monument Peak Main Boulder Independence

Signs of Instability in Lionhead Area

Date
Activity
Snowmobiling

From FB Messenger: re-entry triggered avalanche in the Lionhead area (R1,D1)

Region
Lionhead Range
Location (from list)
LIONHEAD AREA
Observer Name
Ryli Schlueter

Large Collapse at Lionhead

LIONHEAD AREA
Lionhead Range
Code
Latitude
44.72920
Longitude
-111.32300
Notes

We rode below Lionhead Ridge via Denny Creek and found a snowpack with the worst structure we've seen in our forecast area. There was around 3 feet of snow on the ground between 8000-9000'. The bottom foot was sugary weak facets, and the upper snowpack was a supportable hard slab with new snow on top (profile attached). 

We had two large collapses. The most significant collapse happened when we were leaving our snowpit and walking back to our sleds a few feet away. We heard a long "whumph" sound and saw our snowmobiles drop an inch, as the snowpack on the entire slope around us collapsed. Our snowpit had ECTP23 x2 breaking on the sugary weak layer.

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