Observation: Driveway Cirque

Observation Date

2/13/2014

Observer Name

Pmarth

Region

Salt Lake » Park City Ridgeline » Driveway Cirque

Location Name or Route

Driveway Cirque..moonrocks

Weather

Sky

Broken

Wind Direction

Southwest

Weather Comments

windy on the ridgetops....20-25mph

Snow Characteristics

New Snow Density

High

Snow Surface Conditions

Damp

Snow Characteristics Comments

damp powder skiing in protected areas...

Red Flags

Wind Loading

Poor Snowpack Structure

Red Flags Comments

lots of wind transporting snow today to the east and north off the ridge...

Avalanche Problem #1

Problem

Persistent Weak Layer

Trend

Increasing Danger

Problem #1 Comments

Complicated snowpack with lotsa layers....See my pit photos and results below... I was in 25degree terrain off the ridge top facing east...at 9200 feet... Around 6 feet total snow to the ground...easy propogation of column tests in the upper layers of the pack, and a heavier hand for the complicated structures below a foot or so.....

Avalanche Problem #2

Trend

Increasing Danger

Snow Profile

Aspect

East

Elevation

9,200'

Slope Angle

25°