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Observations

Region: Turnagain
Location: Seattle Ridge
Observer: Anonymous
Date:

Route & General Observations

Had a small Snowmachine triggered avalanche today in turnagain pass near gods country. I was doing a left hand side hill across the face. It remote triggered about 15′ above me as I was passing the trees on the left of the picture. Slope was slightly wind loaded and broke on the rock face up higher. Not sure what the crown depth was but I would guess 12-18″. Slow moving and not a long run out. It occurred around 12:30pm. All person riding had all appropriate gear ; bags, shovel, probe beacon, training etc.

I did not see any red flag warnings prior, no whumpfing or shooting cracks. We were on a similar slope prior and snow pack was stable. The sun radiant heat hadn’t effected the surface of the snow. I did not notice any warming effects around trees or rocks even though it was southern facing. The temps were staying pretty cool still. There was no old sun crust noticed either. I was the first track in that area for the day. The slope that slid vs the one we were on earlier had slight differences. The slope that slid had a slight more pitch in angle up top, more rocky and less trees covergae where it slid.

Avalanche Details

Avalanche details

Trigger SnowmachinerAvalanche Type Hard SlabAspect Southeast
Elevation 2400ftSlope AngleunknownCrown Depth 18in
Width 50ftLength 60ft  

Red Flags

Obvious signs of instability

Recent Avalanches?YesCollapsing (Whumphing)?NoCracking (Shooting cracks)?No

Photos & Video

Photos



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