Observation: Turnagain

Location: Tincan

Route & General Observations

Skinned up standard route to 2400′ to look at how much new snow has fallen over the last few days. We also hoped to assess the snowpack above 3000′ on a North aspect to look for buried surface hoar and facets from earlier in April. Unfortunately visibility decreased significantly as we ascended due to blowing snow and turnaround just above treeline.

Red Flags
Red flags are simple visual clues that are a sign of potential avalanche danger. Please record any sign of red flags below.
Obvious signs of instability
Recent Avalanches?Yes
Collapsing (Whumphing)?No
Cracking (Shooting cracks)?No
Observer Comments

Recent natural storm slabs and dry loose sluffs. Two recent glide avalanches - one on SE aspect of Seattle and the other on SW aspect of Eddies.

Weather & Snow Characteristics
Please provide details to help us determine the weather and snowpack during the time this observation took place.

25-30F - becoming cooler with elevation
Broken skies becoming obscured
NE winds 10-20mph at 2400'
Light snow (S-1) becoming heavy (S2) ~2" new today

Snow surface

1000' - 3" new snow on wet snow
2000' - 5" new snow breakable 1" melt-freeze crust
2400' - 2-10" wind drifted snow


Pit at 2400' -NW aspect, 28* slope, HS=185cm
10cm of low density new snow on the surface. The top 55cm of snow was right side up and sitting on a 1F hard 3cm melt-freeze crust. This MF crust was sitting on 1cm of rounds on top of P hard melt forms/melt-freeze(moist) from the big March storm cycle. Compression tests failed unevenly on varying layers within the top 35cm, all Q3. Shovel sheers tests were similar, but had clean sheer between the two melt/freeze layers on 1cm rounds. No persistent week layer were found. ECTX

Photos & Video
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