Aj Massaro

Quick report

ajmassaro · Dec 16, 2025 · North Selkirk

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Quick report

Weather
windy, cold, cloudy, stormy
Ride Type
denseTrees, convexSlopes, alpineSlopes
Stayed Away
steepSlopes
Snow Conditions
powder, windAffected
Avalanche Conditions
avalancheConditionSlab, avalancheConditionSound

North aspect wind slab. 6585’ elevation. Size 2.3. Failed on surface hoar. Left 70-40cm crown. Slab propogated approximately 330M across the slope. Total snowpack was around 140-150cm. Nov 21 melt freeze crust at 110cm in this area. Dug pit performed CT 6 from wrist 30cm break / fracture - resistant planer. Performed ECT 4 X from shoulder 110cm failure on Nov 21 melt freeze crust. Facets approx 1mil @ 110cm persistent slab problem area.

Avalanche

Run Length
400
Slab Width
330
Trigger Type
snowmobile
Wind Exposure
leeSlope
Avalanche Size
2.5
Slab Thickness
70
Trigger Sub Type
intentional
Start Zone Aspect
N
Vegetation Cover
sparseTrees
Start Zone Incline
35
Avalanche Character
windSlab
Crust Near Weak Layer
1
Number Of Avalanches
2-5
Start Zone Elevation
2007
Runout Zone Elevation
1700
Weak Layer Burial Date
2025-12-02
Avalanche Observation
12hrsAgo
Weak Layer Crystal Type
surfaceHoar, surfaceHoarAndFacets
Start Zone Elevation Band
tln
Avalanche Occurrence Datetime
2025-12-16T08:00:00.000Z

North aspect 70cm wind slab failed and was able to propagate 330m across slope. Elev 6585’ Size 2.3. Failed on surface hoar. Area has 150cm average snowpack. Nov 21 melt freeze crust is sitting at 110cm in this area. Dug put and performed Compression Test. CT failed at 6 from the wrist 30cm down break fracture character - resistant planer. Then failed again after 4 from the shoulder down at 100-110 Nov 21 melt freeze crust. Facets 1mil @ 100-110cm.