Avalanche

Avalanche: Neffs

ABSalt Lake
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Avalanche

Slab Width
152 m
Weak Layer
Facets
Trigger Type
Natural
Avalanche Type
Soft Slab
Slab Thickness
122 cm
Start Zone Aspect
North
Avalanche Problem
Persistent Weak Layer
Start Zone Elevation
2926 m

Travelled into Thomas fork today, had a chance to stop by the intentionally triggered collapse from Friday and found that it had propagated further and slid naturally during the weekend storm. The first two photos are this slide. Also noted numerous other slides on basically every terrain feature over 30 degrees throughout the drainage.

Most impressive was this slide dropping off to the north from the top of Thomas fork; it appeared to have slid naturally along the heavily wind loaded ridge line. Crown was already slightly blown back in but was 2'-4' deep and extended approximately 500' from peak 9780 down the ridge line to the east. Debris was visible in the flats about 1000' feet below. Pics 3-5 illustrate the crown, though maybe don't quite capture the width.

I've seen this particular zone avalanche frequently in the past but this is the largest and most connected slide I've seen up there. Hope everyone stays safe this week!