Ad
Observer Name: 
Kevin S
Email: 
kevin@patrollersupply.com
Observation Date: 
Wednesday, April 2, 2014
Occurrence Date: 
Wednesday, April 2, 2014
Occurence Time: 
11:00am
Region: 
Hells Canyon
Location Name or Route: 
Hells Canyon Area
Elevation: 
8100
Aspect: 
Southeast
Slope Angle: 
35
Trigger: 
Snowboarder
Trigger: additional info: 
Unintentionally Triggered
Avalanche Type: 
Wet Slab
Avalanche Problem: 
Storm Slab
Depth: 
9"
Width: 
150
Vertical: 
400
Comments: 
Party of three riding in generally boot deep snow with stable conditions in mostly north / north-east terrain. I came to a spine type feature and rounded from the left side northern aspect to the right side of the spine which has a slightly southern aspect to it. My ski cut became the left flank of a small slab in an hourglass feature about 40' across. This was the starting point but the entire adjacent slope fractured and slid. I was astonished at how fast this slide accelerated, entrained more snow, and shot down a bend in the gully to my left and out of site. If I pointed myself straight down hill I doubt I could match the speed at which this slide took off with. The crown where it started was about 9" deep with clearly visible layering in it. I regret that I did not stop longer to investigate the bed surface. It seems like even though there was cloud cover and cold temps the snow on the slightly south aspect was feeling some radiation from the sun and reacted unexpectedly. The avalanche forecast this morning did mention pockets of instability and possible wind slabs buried under new snow.
Coordinates: 
Ad

Support the Avalanche Center through your purchases

Discount lift tickets
All proceeds from ticket sales benefit the UAC when you purchase your next lift tickets.
Lift tickets available in November
Need new gear?
Make your next purchase from our Affiliate Partners and the UAC will receive a portion of the sales.
Shop
Sign up for our newsletters, emails and daily forecasts to stay up to date.
Subscribe