| Trigger | Skier | Remote Trigger | 0 |
| Avalanche Type | Soft Slab | Aspect | South Southwest |
| Elevation | unknown | Slope Angle | 37deg |
| Crown Depth | 20in | Width | unknown |
| Vertical Run | 10ft |
Avalanche: Turnagain
Location: Tincan Common
Standard Uptrack towards Tincan Common plateau at 3,100 ft.
Intentions to see level of wind gusts, recent storm snow and observe recent slide on Common’s face.
No whumphing, no shooting cracks, rollers after 1pm within direct sunlight (southern Aspect) and lots of 1/2 to 1 ft wind slabs on terrain greater than 35°
Skied down skintrack due to instability and recent storm snow
Avalanche Details
Slab was initiated on a common rollover that many skiers go fast over to maintain speed towards lower skin track.
Slab had a shallow runout and skiers did not look back to see propagation.
Width was approximately 20 ft (flank to flank)
Obvious signs of instability
| Recent Avalanches? | Yes |
| Collapsing (Whumphing)? | No |
| Cracking (Shooting cracks)? | No |
Observer Comments
Wind loading, storm slab, recent avalanches, rollers in direct sunlight on south facing aspects
Weather
Light clouds, 25°-30°F, wind around 5-15 mph, with gusts at Tincan Common at 40-50 mph lasting 10-40 seconds. Approximately 10-15” of new storm snow
Snow surface
10-15 inches of new storm snow
Snowpack
Ski Test with storm snow slabs,
CT 25 Q2 at 60cm- 3,150 ft. Southern Aspect
ECTP 29 Q2 at 45cm - 3,150 ft, Southern Aspect
Tincan Common Slide
Small wind slab at 2,100 ft
Rollover storm slab at 2,000 ft
Seattle Ridge Slide, taken from Tincan