| Recent Avalanches? | Yes |
| Collapsing (Whumphing)? | No |
| Cracking (Shooting cracks)? | No |
Observation: Turnagain
Location: Tincan to 3150'
Ascended normal skin track to 3150′ above Common Bowl
Obvious signs of instability
Observer Comments
Several new glide releases: Pyramid N shoulder, Twentymile - SW aspect, Portage - SW aspect, Penguin - SW aspect - almost reached the bike path, Crow Creek - meadows (SW aspect,) Seattle Ridge (SE) aspect
Weather
Sky was obscure
Temps - 40F's along Hwy, ~30F at 3100'
Rain/snow line ~2500
Winds NE 10-20mph
Snow surface
1000' - 2" wet snow on supportable crust (boot pen varied from 12" to thigh high)
2000' - 4" wet snow on supportable crust (boot pen ~8")
3000' - 1cm surface crust on 10" wet snow on firm crust
Snowpack
Pit at 3150' -SW aspect, 29*slope, HS=335cm, Pit height=90cm, Ski/boot pen=10cm/25cm, Tests: ECTP17, ECTP23 RP failed on 4F density m/f and dry rounds 50cm below surface. Interface was not smooth/clean, but layer did fail suddenly. These test results showed propagation potential, but due to the stout K hard (7cm crust above) it would require a large amount of force to trigger this layer, or the 7cm crust would have to loose its strength.
Pit at 3150' on a SW aspect of Tincan
Large wide glide crack on Tincan's SW face with Seattle Ridge glides in the background
Mostly supportable crust exists at 1000'. There are areas that have melted out to the ground, but areas with 4+ feet of snow on the ground
View of the the recent glide releases and wet slab from 3/29 just next to the up track on Seattle Ridge.
Reference picture of South end of Seattle Ridge with recent glide activity from the last few days
Reference picture near Bertha Cr on the South end of Seattle Ridge with recent glide activity from the last few days.
New glide release on the N shoulder of Pyramid Peak, view from Girdwood
mysterious brown spots on steep slope on Tincan - didn't investigate, ptarmigan poo?
dinosaur makes friends with chick in front of Pete's South glide
uptrack