Observation: Turnagain

Location: Sunnyside uptrack

Date:

December 9, 2018 1:00pm

Observer:

Eeva Latosuo Professional

Route & General Observations

Toured Sunnyside uptrack to check out how the snowpack is finally developing into something.

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

None observed.

Weather & Snow Characteristics

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

Weather

Beautiful sunny, cold and calm day. Felt like winter, woop woop.
Air temp -8C. No precipitation or wind.

Snow surface

2mm graupel from road to ridgeline.
Variable crust at the upper part of snowpack impacting travel especially below 2000'.
Ski quality above 2000' very good.

Snowpack

@Parking lot: HS 10cm. 2cm meltfreeze crust covered by 2cm of new snow.
@ 2000': HS 60cm. Started to lose the crust; more soft snow on top.
@ 2500': HS 90cm. Dug a pit next to the skin track. Top snowpack consisted of 20cm of soft new snow and another 38cm of 1F rounds above numerous meltfreeze crusts. ECTP20BRK @30cm below a meltfreeze crust. Did not find Nov 23 buried surface hoar in our pit location. See pit graph.

Photos & Video

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Snowpack at Sunnyside uptrack is almost breaking one meter mark at 2500'.

View towards Seattle Ridge drainage also looks more wintery. No avalanche occurrences observed on our tour.

Pit profile from 2500'.

Location

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