| Recent Avalanches? | Yes |
| Collapsing (Whumphing)? | Yes |
| Cracking (Shooting cracks)? | No |
Observation: Turnagain
Location: Seattle Ridge, Sunnyside
10:30 Skin from Tincan Parking Lot to Seattle Ridge DOT Lot
Ascended through Sunnyside Skintrack breaking trail towards Treeline (2,000ft+)
Intentions were to conduct multiple snowpack tests within treeline and assess previous storm snow, current rain line and find SBSH/CBSH layer.
Conducted pits and skied from 2,330ft back to highway.
Obvious signs of instability
Observer Comments
Multiple Natural Wet, loose releases on E facing uptrack, 1,500 ft on 30° Slope
Skier Triggered Wet, loose slabs that progressed into large, dense roller balls (2,000ft)
Weather
10:45am RL-RS
Light Wind, Pockets of Blue from North, OVC,
11:30 RS @1,400ft, Calm Wind from N
12:45: 5-15mph.OVC, S-1, Stellar Dendrites @ 2,000ft.
13:00: Consistent 5mph wind from N, OVC, S1
Snow surface
1,000ftP: 30-50cm of cohesive moist-wet layer (recent rain penetration).
1,700ft+: firm, supportable top layer-HS100cm
2,240ft.: Northerly creating wind slabs of up to 100cm within meters of severely wind scoured ridges/convexes.
Snowpack
*See Hardness Profile for Test Pit #1*
Test Pit 1:
Loc: 200 m from Seattle Ridgeline
EL 2,330 ft, S Aspect, 23°, 0°C, OVC/BKN, Calm Northerly Wind, Ski/Boot:35/55cm
STE 40cm down on Rounds/Decomposing
STH 70cm down on LOC MF
CT13 Q2 SP on Stellars/Rounds
CT23 Q3 120cm (full HS) on MF/Base.
ECTN Q2 40cm down on Clus. Rnd Grains
Test Pit 2:
14:42, EL 2,050ft. Southern Aspect, OVC, Calm Wind N, S-1, 37° Incline,
HS 130cm
STE 30cm down
CT9 Q2 SC 20cm down
CT17 Q3 SC 65cm down
CT23 Q3 PC 90cm down
Hardness Profile: Pit 1
View of Snowpit, 2,330ft S Aspect, Seattle Ridge
Wet, Loose Releases on skintrack, 1,500ft. East facing
ECTN14 Q2