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Observation: Turnagain

Location: 1/2: Tincan standard uptrack; 3: lower Corn Biscuit

Date:
Observer:
Route & General Observations

1. Tincan below CFR ridge up to 2300
2. Tincan up to 1640′ on southern ridge
3. Corn Biscuit to 2000 along Bertha Creek

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

1. Yes: loose snow avalanche on Seattle Ridge @ 2500'
2. Collapse felt/heard on low elevation southerly on Tincan.
3. No

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

-6/-7, precip light to none (-1 to nil), cloudy then clearing at base

Snow surface

1/2. 16cm fresh light snow
3. 25cm of fresh light snow

Snowpack

1. Tincan - Pit 1 at 2150', S, slope angle 20, buried surface hoar 85cm; HS 150-200+cm; CT18/26 SC; ECTX x6; PST no result
Pit 2 at 2300', 3/6 pits no buried surface hoar; N aspect, HS 150-240+, CT11/21 SC at 80cm, ECTP27 SC x1; ECTX x5. Bottom of pit 40cm greater than 3mm hoar.

2. Tincan - Pit 1 @ 1600', S aspect HS 165', CT21-24 @ 80cm at melt-freeze crust; ECT22 Q2 at a melt-freeze crust @ 65-80cm;

Pit 2 @1720, HS 220, CT11 RP @ 25cm, ECTX x6.

3. Corn Biscuit -Pit 1 at 1600', NW aspect, HS 150, k25, CT11@60cm, ECTP13@60cm, on buried surface hoar

Pit 2 at 1600, S aspect, k23, HS 150, CT29 @90cm, and 1 CT17 @ 25cm down on crust; ECTX x6; moist facets on ground, aprx 35cm thick