Date of Observation: 12/30/2020
Name: Zach Guy
Zone: Southeast Mountains
Location: Coney’s
Aspect: North East
Elevation: N/BTL
Avalanches: Good views of the leeward aspects of the Northwest Mountains. Plenty of evidence of storm slab instabilities that ran throughout the storm, D1 to D2. A few slides looked like they broke into deeper layers, up to D2.5. Attached photos highlight the largest or most interesting activity.
We triggered a small storm slab (1 foot thick) on a rollover.
Weather: Clear, cold, calm winds.
Snowpack: Stepping off the beaten track we got frequent rumbling collapses and shooting cracks on basal weak layers. On shady aspects, we also got cracking at the storm snow interface about a foot down.
Photos:
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- Rumbling collapses and shooting cracks were common when we got off the beat track
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- The largest slide we could see was on Purple Ridge. NE ATL D2.5, likely broke as a persistent slab
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- Skier triggered storm slab on a small rollover. D1
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- Schuylkill Peak, NE NTL D2. Shallow sluff stepped down to a slab
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- Schuylkill Peak, NE NTL, D2 storm slabs
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- Redwell Basin, N ATL, numerous storm slabs to D1.5 and what looks like a D1.5 persistent slab
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- Gothic SW ATL D1.5 storm slab
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- Baldy SE ATL D2 storm slab
