Avalanche

Avalanche: Lake Martha

UAC ObserverSalt Lake
View on map

Avalanche

Slab Width
107 m
Weak Layer
Facets
Vertical Fall
137 m
Avalanche Type
Hard Slab
Start Zone Aspect
North
Avalanche Problem
Persistent Weak Layer
Start Zone Elevation
3018 m

Ran across this one in Martha Bowl that was not reported previously. It appeared to go early in the last event and at this point had between 12 to 18 inches of snow on top of the old Bed Surface. It had gone wall to wall, and it appeared that the upper hanging snow field above the big white cliffs had released and cascaded over the cliffs and triggered the entire Bowl. Of Note: the slide ran a tremendously long distance catching air over the hump below the bowl and pouring over the summer trail. It went at least 100 feet down the low angle run to Lake Martha. It was very hard to see the crown as it had filled in significantly. The Bed Surface was knife hard. The light was poor and thus no picture.