Nak Thak Col

Quick report

alexandrataran · Mar 18, 2025 · Coquihalla

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Observation photo 1Observation photo 2Observation photo 3Observation photo 4Observation photo 5

Quick report

Weather
stormy
Ride Type
mellowSlopes, openTrees
Stayed Away
steepSlopes, convexSlopes
Riding Quality
good
Snow Conditions
powder, windAffected

TL: Wind effect, easy hand shear results. BTL: Incredibly rudimentary snow profile with CTE RP results in upper (wind affected) layers of the snowpack.

Weather

Wind Speed
windSpeedModerate
Sky Condition
brokenClouds
Temperature Trend
steady
Precipitation Type
snow

Periods of snowfall and periods of broken clouds. PP type graupel. Light winds BTL, moderate winds TL.

Snowpack

Obs Type
summary
Site Aspect
N, SE, NE, S
Test Fracture
resistant
Test Initiation
easy
Cracking Observed
1
Site Elevation Band
btl, tln
Surface Conditions
newSnow
Test Failure Layer Crystal Types
stormSnow, other

Very rudimentary profile, mostly to test upper layers of the snowpack, due to observed wind effect. Solar crust (Mar15) seen on S’ly (suspected bed surface in avalanche photos) not present in NE’ly profile.

Avalanche

Trigger Type
natural
Wind Exposure
leeSlope
Avalanche Size
2
Start Zone Aspect
SE, NE
Vegetation Cover
openSlope
Avalanche Character
stormSlab, windSlab
Number Of Avalanches
2-5
Avalanche Observation
12to24hrsAgo
Start Zone Elevation Band
tln
Avalanche Occurrence Datetime
2025-03-17T07:00:00.000Z

Multiple Na avalanches observed, both on tour and from the highway. Most were Sz 1, one Sz 2 observed. Suspect SE’ly avalanche bed surface to be Mar 15th MFcr.