Haines Pass (Nadahini - Green shack)

Snowpack

jocelyn_nadeau · Jan 1, 2017 · Chilkat Pass

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Quick report

Weather
windy
Ride Type
mellowSlopes
Riding Quality
terrible
Snow Conditions
windAffected

Went to take a look at snow conditions in the pass. Snow conditions very poor. Good travel with little to no ski penetration!

Weather

Avg Temp
-8
Max Temp
-4
Min Temp
-14
Wind Speed
windSpeedStrong
Blowing Snow
intense
Sky Condition
brokenClouds
Wind Direction
N
New Snow24 Hours
3
Temperature Trend
steady
Precipitation Type
none

Strong N wind in the alpine (current wind affected snow mostly the result of dominant S winds). Cross loading, Reverse loading: all aspects wind affected!

Snowpack

Depth
190
Obs Type
point
Site Aspect
E
Test Fracture
resistant
Site Elevation
1120
Ski Penetration
5
Test Initiation
moderate
Foot Penetration
15
Test Failure Depth
15
Site Elevation Band
alp
Surface Conditions
crust
Test Failure Layer Crystal Types
facets

Dug a pit at GR 088200 at 1120m on a small 30 degree E-facing wind loaded pocket. Did a shovel shear test, a compression test and an extended column test with the following results: HS (190) STM (175) CTE0 (175) CTM15 (160) CTM17 (128) ECTH22 (102). The most recent windslabs at 15cm and 30cm from surface are most reactive. Given the very variable height of snow (HS from 130cm in the flats to 190cm in the snow pit to 15cm higher on the ridge around rock outcrop), one still has to keep in mind the deeper slabs sitting on a rain crust (30 cm) and facets to the ground (0-30cm). Ski quality was terrible! Wind affected snow on all aspects (today's wind was straight N).