| Trigger | Natural | Remote Trigger | 0 |
| Avalanche Type | Soft Slab | Aspect | East Southeast |
| Elevation | 2000ft | Slope Angle | 35deg |
| Crown Depth | unknown | Width | 100ft |
| Vertical Run | 500ft |
Avalanche: Turnagain
Location: Bertha Creek Campground
Cornbiscuit parking lot to Bertha Creek Campground area to conduct rescue drills and snowpit tests.
Avalanche Details
SS-N-R1-D2-U
Observed a couple small wind slab pockets on motorized side above Bertha Cr. Campground.
Obvious signs of instability
| Recent Avalanches? | Yes |
| Collapsing (Whumphing)? | No |
| Cracking (Shooting cracks)? | Yes |
Observer Comments
2 small avalanches noted above.
Very localized cracking at the storm snow interface (about 55cm deep).
Weather
Snowing 1cm+/ hr til noon. Clearing skies after noon on the South side of Turnagain Pass. Winds were light at road elevation. Noticed some moderate flagging on Seattle ridge from East winds. 28*F in morning. 32*F at 5pm.
Snow surface
New snow was ~55cm deep. Heavy, moisture-laden new snow made for deep trenching with snowmachines. SUper fun riding, DEEP!
Snowpack
HS= 120cm
HNS= 55cm
CT4,6,8
ECTP4, 8, 16
All column tests were failing about 75cm down on a layer of facets/ buried surface hoar over a thin crust.
Cory did a couple snowmachine slope cut tests with no results.
IMG_6312
Rescue practice with AAS guest instructor Mike Duffy
Small wind slab above Bertha Cr. Campground.
IMG_6675