Public Observation #2022-896

Observation Details

Submitted:
December 12, 2022 8:39 PM
Observation Date:
December 12, 2022
Zone or Region:
Central Cascades
Activity:
Skiing/Snowboarding
Location:
Castle Crest Area, Crater Lake NP, above Steel Visitor Center Parking

Observed Avalanches

Did you observe any avalanches? 
Yes
Avalanche Type:
Hard Slab
Size:
D2: Could bury, injure, or kill a person
Elevation:
Aspect:
W
Comments:
Avalanches were 100-200 feet wide. Observed crowns ranged 20-75 cm (1-2+ feet). Identified a thin weak layer coincident with fracture. Based on observations from a pit in the area on 12/9, this weak layer would have formed sometime between the Dec 8th storm and the Dec 9-10 storm. This same layer was observed in pits earlier in the day (12/12) on Brown Mtn, 50 miles South.

Signs of Unstable Snow

None reported

Observations

Observed avy debris and crowns from natural (1) and human triggered (3) slides that occurred yesterday 12/11/2022. The slopes are 30-35.

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