Miner's Gully

Snowpack

nick.baggaley · Mar 20, 2020 · Bow Valley

View on map
Observation photo 1

Quick report

Weather
sunny, windy, warm
Ride Type
steepSlopes, openTrees, alpineSlopes
Stayed Away
convexSlopes
Riding Quality
good
Snow Conditions
powder, crusty, windAffected
Avalanche Conditions
avalancheConditionTemp

Skied Miner's Gully starting from the top at 1205. Upper gully has a 45cm wind slab (P hardness) resting on 40cm of facets, though no whumpfing was observed and the slab quickly disappeared in the lower gully. Lower down, surface snow was a mix of patchy crusts, wind slabs and powder. No recent avalanches were observed, even with warming from around -10 at the start to -1 at Quarry Lake.

Weather

Avg Temp
-5
Wind Speed
windSpeedLight
Blowing Snow
moderate
Sky Condition
clear
Wind Direction
S
New Snow24 Hours
0
Temperature Trend
rising
Precipitation Type
none

Weather observation at ridgetop (1205 at 2400m): Clear, no precip. Winds M from the S-SE. Temp -5.4 Weather observation in bowl (1235 at 2150m): Clear, no precip. Winds L from the S. Temp -5.1

Snowpack

Depth
90
Obs Type
point
Site Aspect
NE
Test Fracture
unevenBreak
Site Elevation
2150
Ski Penetration
15
Test Initiation
hard
Test Failure Depth
55
Site Elevation Band
alp
Surface Conditions
crust
Test Failure Layer Crystal Types
facets

Dug a pit in the bowl below the central cliff bands - slope angle 34 degrees. 8cm thick wind slab cracked and failed on column isolation; remaining column failed at CTH27 down 55 on facets. Overall impressions: In bowl, aside from wind slab resting on faceting snow, lower pack appears well consolidated with multiple layers between 1F and 4F hardness bridging still present basal FC weak layer.