Public Observation
Observation Details
Observation Date:
January 15, 2023Submitted:
January 15, 2023Zone or Region:
Mammoth LakesActivity:
Skiing/SnowboardingLocation:
Lower Mammoth Rock BowlObservations
Triggered a D1 soft slab on a steep rollover beneath Mammoth Rock around 1245 this afternoon. The slab broke and slid on a thin crust ~1' deep and propagated underneath a small rock outcrop skier's right of our tracks. Winds were changing direction and speed throughout the day, increasing the reactivity of wind slabs.
Triggered Avalanches
Did you trigger any avalanches?
YesWas it intentional?
NoAvalanche Type:
Soft SlabSize:
Size 1: Relatively harmless to peopleElevation:
8550'Aspect:
NEComments:
Steep rollover below Mammoth Rock. Crown was ~1' deep and 100' wide. Ski cut the slope before descending it; slab broke as the second skier cleared the runout zonePhotos:
Observed Avalanches
Did you observe any avalanches?
YesAvalanche Type:
Soft SlabSize:
Size 1: Relatively harmless to peopleElevation:
8300'Aspect:
SEComments:
Noticed some small, largely filled in crowns on a steep (~40 degree) SE aspect beneath the BluffsMedia
Signs of Unstable Snow
None reported