Whumpfs and Hoar

Quick report

bvandy · Jan 25, 2025 · Goat

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Observation photo 1Observation photo 2

Quick report

Weather
sunny, cold
Ride Type
openTrees
Riding Quality
good
Snow Conditions
powder
Avalanche Conditions
avalancheConditionSound

Went for an adventure slog into some new zones, cold clear weather has started forming surface hoar up to 30mm-40mm on all aspects above 1600m—1950m, and smaller SH to valley bottom averaging 4-9mm which did provide some great turns but will have to be watched once buried. On ridge line the wind affect was surprisingly minimal but we observed a few whumpfs on west aspects where the snow was starting to form a more cohesive slabs and hand shears showed planar results 20cm down on the Jan.23 SH. For north and east aspects the new snow was still lacking slab properties, but we had CT-24 SP down 90cm and ECT-X at 1700m N aspect. We rode some more open trees into a gully down a NE aspect and got great turns right from 1950m back to 800m with no movement except the large SH sloughing.

Weather

Wind Speed
windSpeedCalm
Blowing Snow
none
Sky Condition
clear
Precipitation Type
none

Snowpack

Obs Type
point
Site Aspect
N
Test Fracture
sudden
Site Elevation
1700
Ski Penetration
20
Test Initiation
hard
Foot Penetration
40
Test Failure Depth
90
Site Elevation Band
tln
Surface Conditions
surfaceHoar
Whumpfing Observed
1
Test Failure Layer Crystal Types
surfaceHoar

Early January SH layer had no reaction, the planar break down at 90cm may be the early December SH layer.