| Recent Avalanches? | No |
| Collapsing (Whumphing)? | Yes |
| Cracking (Shooting cracks)? | Yes |
Observation: Turnagain
Location: Tincan, Treeline
Standard Approach towards Treeline to assess recent storm snow and evaluate snowpack stability.
Conducted one test pit and skied multiple laps within treeline with no incident. Very obvious wind scouring on adjacent ridge lines (Eddies, Sunburst, Seattle Ridge, and Tincan Common Bowl Approach ridge).
Obvious signs of instability
Observer Comments
In addition to 2-4cm of fresh storm snow, ski partners encountered sporadic, feature-based cracking on pillows and edges of convex rollovers. Fresh storm slabs, wind slabs, and persistent weak layers ( SBSH/CBSH) were our focus/ LOC.
Whumphing encountered during skinning within treeline, 2,000ft+.
Weather
11:00-Scattered skies with pockets of blue, light wind from East, 31°F, No Precipitation @1,000ft
11:45- OVC, S-1, Light wind from East, VF (1,200-1,800ft)
15:30-OVC, S1, Light wind from East, VF (1,200-1,800ft)
Trending: Storm moving in from Turnagain Arm, throughout the E&W aspects of Turnagain Pass
Snow surface
2cm of fresh stellar dendrites/ needles at 1,500-2,000ft
4-5cm of fresh stellar dendrites/ needles at 2,000-2,200ft
Upside-Down feel in sporadic areas, but overall, supportable and moist Powder in most areas we encountered.
Snowpack
11:45
Location: Tincan, Treeline, 100m NW of CNFAIC WX STN
Incline: 28°, 30°F, W Aspect, EL 2,225 ft, OVC, Light Wind from East, S-1,
Ski/Boot Pen: 30/60cm
HS180cm
Tests:
STM@52cm down on rounds, decomposing
STM@ 86cm down on CBSH (LOC)
CT5 Q2 22cm down on Stellar dendrites*
CT12 Q3 SC 52cm down on Stellar dendrites*
CT20 Q2 SC 65cm down on Columns, rounds
ECTX
* same column
Hardness Profile-CBSH layer annotated with horizontal cut-in 90cm down
STM@52cm down on rounds, decomposing
CT results with Multiple fractures- 22cm down and 52cm down on stellar dendrites
ECTX