Observation: Turnagain

Location: Tincan

Date:

January 31, 2019 12:00

Observer:

Allen Dahl and Eric R.

Route & General Observations

APU Tincan Weather station Mission @2200′. Played around digging into the snow.

Red Flags

Red flags are simple visual clues that are a sign of potential avalanche danger. Please record any sign of red flags below.

Observer Comments

N/O

Weather & Snow Characteristics

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

Weather

Low clouds capping off just above 2000' with clear skies above.
Calm winds.
Slow active riming near the cloud tops

Snow surface

Colder temps froze the wet surface snow from the other day, creating a crust thinning with elevation and disappearing at 1500'. Soft surface snow above. New small surface hoar starting above 2000', with rimed crystals near cloud tops.

Snowpack

Snowpit: 2200' SSW aspect, 34* slope. HS170cm, Pit depth 100cm.
Thin crust with NSF 25cm down
Buried Surface Hoar (6-9mm) with MF crust 40cm down. This layer seemed to be on an irregular plan in our pit location.
NSF/Small BSH 70cm down.
Results:
CT15 SC 25cm Down
CT14 RP 40cm Down
*ECTN14, ECTN15 40cm down on BSH/MF Combo
*Did not Observe the fracture cross the column, however, the snow sheared as a cohesive slab when pulled from the back with a shovel after testing.

Photos & Video

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Rimed surface hoar in front of a 3mm grid, 2200'

10800142816_IMG_7412

Location

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