melt freeze crust Russian Roulette

Quick report

She Shreds Mountain Adventures · Dec 11, 2023 · South Island

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Quick report

Weather
cloudy, stormy
Ride Type
alpineSlopes, convexSlopes, denseTrees, mellowSlopes, openTrees, steepSlopes
Riding Quality
good
Snow Conditions
crusty, powder

We sledded around lots of different aspects and elevations playing Russian Roulette today in the 110cm snow depth between 2000-2300m. The melt freeze crust was about 7cm thick at 2000m and 3cm thick at 2230m. It posed as a sneaky ski grabber which resulted in a couple endo's and ski bushing replacements. Didn't see any signs of instability while out hooning but did see some old debris from the melt freeze cycle on a very steep slope. Dug a pitty at 2230m on a W-SW aspect. 30cm of new storm snow is bonding very nicely to the Dec 6 melt freeze crust (which is about 3cm thick at this elevation). Getting hard results on the Dec 1 surface hoar layer with a sudden collapse down 60cm. Bottom 20cm are unconsolidated facets.

Snowpack

Depth
110
Obs Type
point
Site Aspect
SW, W
Test Fracture
sudden
Site Elevation
2230
Ski Penetration
0
Test Initiation
hard
Foot Penetration
17
Sled Penetration
40
Test Failure Depth
39
Site Elevation Band
alp
Surface Conditions
newSnow
Test Failure Layer Crystal Types
surfaceHoar

We sledded around lots of different aspects and elevations playing Russian Roulette today in the 110cm snow depth between 2000-2300m. The melt freeze crust was about 7cm thick at 2000m and 3cm thick at 2230m. It posed as a sneaky ski grabber which resulted in a couple endo's and ski bushing replacements. Didn't see any signs of instability while out hooning but did see some old debris from the melt freeze cycle on a very steep slope. Dug a pitty at 2230m on a W-SW aspect. 30cm of new storm snow is bonding very nicely to the Dec 6 melt freeze crust (which is about 3cm thick at this elevation). Getting hard results on the Dec 1 surface hoar layer with a sudden collapse down 60cm. Bottom 20cm are unconsolidated facets.