Avalanche: Douglas Island

Location: Mt Jumbo

Route & General Observations

Up and over Jumbo.

Avalanche Details
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Trigger NaturalAvalanche Type Soft Slab
Aspect NorthElevation 2500ft
Slope AngleunknownCrown Depthunknown
WidthunknownVertical Rununknown
Avalanche Details

The bottom half of the Jumbo Couloir naturally slid wall to wall on what appeared to be the new snow/old snow interface. Crown depth looked to be about 30cm. The upper half of the couloir did not slide.

I dug a pit at 3500’ at the entrance to couloir and got the following results:

CTM17 down 25cm Sudden Planar
CTH22 down 30cm Sudden Planar
ECTN18 down 25cm