Avalanche

Avalanche: Yellow Jacket

Champion & GagneSalt Lake
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Observation photo 1

Quick report

Slope Angle
36°

Avalanche

Slab Width
53 m
Weak Layer
Facets
Trigger Type
Natural
Vertical Fall
305 m
Avalanche Type
Hard Slab
Slab Thickness
61 cm
Start Zone Aspect
Northwest
Avalanche Problem
Persistent Weak Layer
Start Zone Elevation
2896 m

We observed this avalanche traveling up toward the ridgeline between Yellow Jacket Trees and Depth Hoar Bowl.

The start zone was located at approximately 9,500 feet on a slope with a steepness of 35–38 degrees. While the crown averaged 2–3 feet deep, we noted areas along the flank where it reached up to 9 feet. The avalanche appeared to run about 1,000 vertical feet, leaving behind large chunks of debris.

Additional photos of the avalanche from the crown at 9500' on a NW aspect

Looking down at the avalanche from the ridgeline just above 9600' on a NW Aspect

Looking across at the crown just below the start zone - approx 9300' - NW aspect