Observation: Turnagain

Location: Seattle Ridge

Date:

November 17, 2015 4:08pm

Observer:

H. Thamm Professional

Route & General Observations

Seattle Ridge up track
Skied SE aspect

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

Several glide cracks on Tincan have released and were reported a few days ago. See Tincan observation from 11-15-16.

Weather & Snow Characteristics

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

Weather

Sunny
0F
10-20mph NW winds along ridge
Lights winds at lower elevations

Snow surface

1000' - 5" of faceted low density snow on firm base
1500' - pockets of low density faceted snow (5") and breakable wind crust on SE aspects
2000-2400' - Mostly wind scoured ridges mixed with firm wind hardened snow and pockets of breakable 1-3" wind crust

Snowpack

Total height of snow varied from 12-20". There were areas of breakable wind skin covering poorly bonded faceted snow below. Dug several hand pits and found firmer (4F - 1F hard) base sitting on ground.

Photos & Video

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Several small glide crack avalanches on Tincan around 1600'.

Overall good coverage at lower elevations. Much better than last season!

Snow depth varied from 12-20" , but still lots of rocks and branches out there.

Wind affected snow in Warm-up bowl, NNE aspect.

Scouring and supportable wind hardened snow along Seattle Ridge.

Location

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