Avalanche

Avalanche: Roberts Horn

UAC ObserverProvo
View on map

Quick report

Slope Angle
40°

Avalanche

Slab Width
30 m
Weak Layer
Density Change
Trigger Type
Natural
Vertical Fall
457 m
Avalanche Type
Hard Slab
Slab Thickness
30 cm
Start Zone Aspect
Southeast
Avalanche Problem
Wind Slab
Start Zone Elevation
3078 m

I got a report today from Aspen Grove local, Scott Hart, of this slide in the far north end of Roberts Horn in Primrose Cirque. We can confirm that the slide was not there this morning at first light. It likely happened today around 12:30 and was triggered by the strong W winds. There were at least two other similar slides today in the Lost Creek path. Best guess currently is they were new windslabs failing at a density change.