Apex Backcountry Size 2

Avalanche

drbenstevens ยท Dec 28, 2019

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Observation photo 1Observation photo 2

Quick report

Weather
windy
Ride Type
openTrees, mellowSlopes, denseTrees
Stayed Away
convexSlopes
Riding Quality
good
Snow Conditions
windAffected, powder
Avalanche Conditions
avalancheConditionSlab, avalancheConditionSound

Avalanche

Run Length
300
Slab Width
53
Trigger Type
skier
Avalanche Size
2
Slab Thickness
70
Trigger Sub Type
accidental
Vegetation Cover
sparseTrees
Avalanche Character
persistentSlab, deepPersistentSlab
Crust Near Weak Layer
1
Number Of Avalanches
1
Avalanche Observation
moreThan48hrsAgo
Weak Layer Crystal Type
surfaceHoarAndFacets, facets
Start Zone Elevation Band
btl
Avalanche Occurrence Datetime
2019-12-28T13:30:00

After heavy ski cutting and jumping on the slope, decided to ride in one at a time. First rider in caused an immediate fracture across the entire face about 60 CM deep, up to 80-100cm deep in some places, releasing a large slab. Width of slope at the top was about 150-200 feet wide. Slid the entire length of the slope, clearing the entire upper layer off, leaving behind the exact layer it slid on, which was granular. No one injured. Pic 1 is of remaining peice of slab near one of the more shallow points, pic 2 is of slide path. Approximate location Ron's Ridge.