Mallard lodge West Rockies

Avalanche

pamann ยท Feb 29, 2020

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Observation photo 1

Quick report

Weather
stormy
Ride Type
openTrees, steepSlopes
Stayed Away
alpineSlopes
Riding Quality
amazing
Snow Conditions
deepPowder
Avalanche Conditions
avalancheConditionSnow

Wrapping up a week of ski touring at mallard lodge, in the west Rockies just north of Athabasca pass. Excellent skiing at and below tree line. We skied steep open slopes to 40 deg, during a week of generally snowy weather. We never did get into the alpine after the first day and suspect conditions may be different as moderate winds were noted-up high at different times over the week.

Weather

Avg Temp
-5
Max Temp
-1
Min Temp
-9
Wind Speed
windSpeedLight
Sky Condition
overcast
Snowfall Rate
1
Wind Direction
SW
New Snow24 Hours
20
Storm Snow Amount
33
Temperature Trend
steady
Precipitation Type
snow

Pretty much cloudy and snowing every day since Feb 23. This limited our trips into the alpine and focussed on skiing at and below tree line.

Snowpack

Depth
235
Obs Type
summary
Site Aspect
NE, N
Test Fracture
resistant
Site Elevation
2000
Ski Penetration
30
Test Initiation
hard
Foot Penetration
45
Test Failure Depth
55
Site Elevation Band
tln, btl
Surface Conditions
newSnow
Test Failure Layer Crystal Types
other

Several pits and tests over the week. We had some graupel early in the week that though isolated was reactive today CTH 23 Rp, down 55cm on older surface. Measured 58cm of storm snow as of today. We did not find the mid Feb surface hoar here.

Avalanche

Trigger Type
skier
Avalanche Size
1
Trigger Sub Type
intentional
Start Zone Incline
40
Avalanche Character
looseDry
Start Zone Elevation
2000
Weak Layer Crystal Type
stormSnow
Avalanche Occurrence Datetime
2020-02-29T16:40:00

Ski cutting and skiing produced only sluffing to size one. Though observations were limited due to weather, there were a few loose slugs noted on solar aspects but no signs of slab activity.