| Trigger | Natural | Remote Trigger | Unknown |
| Avalanche Type | Wet Loose Snow | Aspect | South |
| Elevation | unknown | Slope Angle | unknown |
| Crown Depth | unknown | Width | unknown |
| Vertical Run | unknown |
Avalanche: Other Regions
Location: Ptarmigan Lake Trail
Hiked Ptarmigan Lake trail to the end of the lake. Observed several natural avalanches in channel terrain on North facing slopes on the other side of the the Lake. Upon our return one of the gully’s we crossed was full of new debris, covering our tracks from an hour earlier when we crossed it.
Obvious signs of instability
| Recent Avalanches? | Yes |
| Collapsing (Whumphing)? | No |
| Cracking (Shooting cracks)? | No |
Observer Comments
Recent evidence of avalanche's were seen in Summit Lake on Butch on drive to Ptarmigan Lake trail
Weather
Mostly sunny
High's the 50Fs
No precip
Light winds
Snow surface
The entire trail was free of snow except for this one gully. Most of the South facing slopes above were also snow free with isolated patches, or at least what we could see from below.
New debris covered our tracks in this gully.
The gully was only 15' wide, but debris ran the full length to the lake
Looking down at the lake