Monashee Icecap

Quick report

Craig Hartmetz · Apr 3, 2024 · Lizard-Flathead

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Quick report

Weather
cloudy, stormy, warm
Ride Type
alpineSlopes, mellowSlopes, openTrees
Stayed Away
convexSlopes, steepSlopes
Riding Quality
ok
Snow Conditions
hard, wet

Weather

Wind Speed
windSpeedStrong
Blowing Snow
intense
Sky Condition
overcast
Storm Start Date
2024-04-01
Storm Snow Amount
20
Precipitation Type
snow

Three of us attempted to go ski mountaineering on the Northern Monashee Icecap, bet on the weather, and had to fold our hand. We accessed the area via Howard Creek on April 1st, using snowmobiles to 1800 m and then ski touring to the pin location where we established our base camp. We then endured two nights of stormy weather which deposited ~20 cm of snow with strong to extreme winds. Winds were originally from the NW switching to S, and completely buried our campsite despite our best efforts of fortification. The storm intensity and lack of visibility had us camp-bound. This area has big ice and correspondingly large crevasses, which made us hesitant to push into whiteout navigation. The deactivation ditches on the FSR melted out dramatically over the short period of time that we were in the area, making sled egress challenging. Access via this route is likely no longer feasible this season, barring a significant snowfall to low elevations.

Avalanche

Run Length
100
Slab Width
60
Trigger Type
natural
Wind Exposure
crossLoadedSlope
Avalanche Size
2
Slab Thickness
40
Start Zone Aspect
SE
Start Zone Incline
35
Avalanche Character
stormSlab
Crust Near Weak Layer
1
Number Of Avalanches
1
Start Zone Elevation
2200
Weak Layer Burial Date
2024-04-01
Avalanche Observation
12to24hrsAgo
Weak Layer Crystal Type
stormSnow
Start Zone Elevation Band
alp
Avalanche Occurrence Datetime
2024-04-03T18:00:00.000Z

We observed one recent storm slab on a SE facing moraine, appearing to have failed at the recent storm interface, running on the crust buried on April 1st. No other activity was noted despite the intense snow transport and new snow for 24 hours. A new wind slab could be felt underfoot on W facing terrain, but was stubborn to hand shears and not reactive underfoot.