| Recent Avalanches? | Yes |
| Collapsing (Whumphing)? | No |
| Cracking (Shooting cracks)? | No |
Observation: Turnagain
Location: Tincan
Toured to 2550′ to gather rain line info and to look at how well the storm snow is bonding to the March 27th buried surface hoar and facets and/or sun crust.
Obvious signs of instability
Observer Comments
Roller balls in the afternoon and a few small went loose avalanches
4/4-4/6 avalanche cycle is very impressive. Large avalanche on Tincan North was also observed but no photo.
Weather
Partly cloudy
Center Ridge Snotel (1880) 47F @ 1 pm, Sunburst (3800') 23F @ 1 pm
Light E winds
Snow surface
Slight breakable mf crust to 1500' disappeared in afternoon.
2-30 cm of new snow over wet rain saturated snow. New snow was damp
Ski pen decreased with elevation to 5 cm at 2500'. Wind affected heavy/stiff snow.
Solar aspects were rapidly warming. Sheen present on some Easterly ridges. Runnels on slopes down low.
Snowpack
1000' Boot pen to knee. Wet snow to ground mixed with crusts.
1400' Boot pen to shin. 50 cm of wet snow over crust. Did not dig below crust. 2-4cm of damp new snow.
2000' 10 cm new snow. 5 cm wet snow, 10 cm damp snow. 25 cm of wet snow damp snow below
2550' See photo: 30 cm of new snow over 5 cm wet snow, 112 storm total (mostly 1F hardness) over March 27th intact buried surface hoar over march facets, Surface hoar was not reactive in Compression tests but was in Deep tap tests, DT 11 sudden planar x2. Did not do PST but think this layer is concerning under the stiff storm/wind slab.
Did not get high enough to determine how high it rained.
Pit @ 2250' W aspect
Cornice chunks from CFR
South side Tincan debris
Crown in North bowl of Sunburst
Seattle Ridge avalanches and the uptrack with a small wet loose above
Sunshine sheen in the afternoon
Avalanche on Magnum from the storm. It also wrapped onto the NW ridge.