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Observation: Turnagain

Location: Sunburst

Date:
Observer:
Route & General Observations

Standard up/down track, with equipment failure

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?No
Collapsing (Whumphing)?Yes
Cracking (Shooting cracks)?No
Observer Comments

No current signs of drifting snow, but signs of recent wind effect above 1500'.
We spoke to a skier who spent the day at Tincan, reporting "widespread whumphing."

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

Obscured cloud cover above 5000', then dropped to 2500' by 2p
26°F - 35°F
Light intermittent flurries
Calm winds

Snow surface

High density powder
Parking lot to 1200' subtle 1-2cm surface crust right below 2cm of fresh
Surface was wind effected from 1500-2000' and mostly supportable
Ski penetration: 20cm from 1000-1800', then <10cm from 1800'-2000'

Snowpack

Pit #1:
HS65, 1500', west aspect (whumph at this location)
CT12SC↓35 in facets between two crust layers (we couldn't find surface hoar)

Pit #2:
HS90, 2000' west aspect
CT13SC↓20cm on BSH (solstice)
CT18SC↓20cm on BSH (solstice)
ECTPX

Pit #3:
HS115, 2000' west aspect (20' away from pit #2)
CT6SC↓20cm on stallars (below wind effected snow)
CT8SC↓20cm on stellars (below wind effected snow)
CT12SC(x3)↓40cm on BSH (solstice)
ECTP10↓40cm on BSH (solstice)
ECTP11↓40cm on BSH (solstice)
ECTP12↓40cm on BSH (solstice)

Photos & Video
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