| Recent Avalanches? | Yes |
| Collapsing (Whumphing)? | No |
| Cracking (Shooting cracks)? | No |
Observation: Turnagain
Location: Seattle Ridge
Common up-track to Main Bowl
Obvious signs of instability
Observer Comments
Glide cracks growing - all aspects, all over Turnigain Pass
Two skier triggered wind slabs on Juniors (D1's) likely 1-2 days old
Cornice triggered windslab on West face of Pyramid
Weather
Partly sunny becoming mostly cloudy in the afternoon
NE winds - 10-15mph
Very short period of flurries - no accumulation
Temps - low 30's in sun, mid 20's in shade
Snow surface
1400 - 2600' -1-15" of low density snow on firm crust, on solar aspects (1-2" sun crust softening in the afternoon)
Surface hoar (2-8mm) on all aspects/elevations, on windward slopes SH was blowing over
Snowpack
Dug a pit at 2600' - West aspect, 27* slope, HS >300cm, see photo diagram - Found intact/partly decomposing stellars 16" (40cm) below surface(4F hard) just below a 1cm rain crust. This density change did not have any propagation in tests. Also found an unreactive layer of buried surface hoar 3.75' (115cm) below surface. Test results: CT16 Q2, ECTN17, ECTN20 (40cm below surface)
Cornice crack above Mamma's Bowl
Two skier trigged wind slabs (D1's) on Juniors (SW aspect) as seen from the top of Main Bowl. Likely occurred 1-2 days ago.
Extremely large glide crack on an East aspect of Main Bowl above normal up track route.
Glide Crack on SW aspect of Main Bowl with Juniors on the ridge just behind.
Pit at 2600' West aspect in Main Bowl
Recent Glide Avalanches on Sharks Fin and ridge leading to Wolverine - SW aspects
Cornice trigged wind slab on Pyramid - West aspect
1" sun crust with small surface hoar at 2000' E aspect
Photo taken from helicopter today of Ridge between Silvertip Cr. and Lynx Cr, Captains Chair in background. Large D2 slab (2-3' deep) Photo by Graham Predeger