Grand Mesa
SnowpackRob Hunker · Feb 22, 2014 · Grand Mesa
Weather
1400 hrs, PC, 26F, 41%, West @ 16mph
Snowpack
Study Plot: HS 67"; storm board: Trace, cleared; Current highway avalanche risk: LOW// Test Slope: HS 58"// Upper surface layer recent storm snow// Midpack cohesive slab// Lower midpack 2 thin weak layers cohesionless facets//Basal layer depth hoar// One avalanche problem for the highway: persistent slab failure// lower midpack failure on either of the thin weak layers with the CHANCE of stepping down to the ground// stability test moderate to hard forced column failure// CHANCE of failure with 18-24†new snow, storm load for natural D2, slab avalanches on all Cliffs paths with 5-7 feet on centerline.