Coquihalla lakes persistent weak layer development

Quick report

Weather

cold

Snow Conditions

crusty

Snowpack

Obs Type

point

Site Aspect

SW, W

Test Fracture

sudden

Site Elevation

1120

Test Initiation

easy

Cracking Observed

1

Site Elevation Band

btl

Surface Conditions

surfaceHoar

Test Failure Layer Crystal Types

facets

Surface hoar is developing quickly with warm days and cool clear windless nights. The rain crust is breaking down ( 1 to 5 cm) A fist resistance facet layer is developing under the crust. We are settling up (potentially) for a tricky persistent weak layer once buried ( forecast by the last week of the month). This layer combo may create a double SC SP shear failure. Double collapse suddenly planer. It’s not all ice out there. Niko