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Sunday March 7th 2010

March 22, 2010 at 06:23PM

Snowmobilers triggered a size 2 wind slab at 1800 m SE aspect on Jutland Mountain in Strathcona Provincial Park. The Wind slab was 1 meter deep and reported to be 50 meters wide. One machiner was decending onto the slab while a second was climbing up it when it released. The climber mangaged to climb through and on top of it while the descender escaped to the side. No injuries or burial were reported. The avalanche was formed by strong Northerly winds that redistributed cold Northerly and faceted snow into South and South East Aspects.  The slab was quite hard. I measured a slab in a safe place on Mt washington on the same day and it was 35% water content or 350 kilograms per cubic meter. The bed surface would likley have been a pencil hard crust. This was reported to me second hand by cell phone from the site to one of my students and the names and other information were withheld. Submitted by Niko Weis

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