My fellow guide, Mike Trehearne and I guided on the Weeping Wall today, St Valentines Day. At about noon a size 1.5 avalanche ran naturally over the cliff where the route Aerial Boundaries occasionally forms (100 meters right of Weeping Wall Right Hand). I'm guessing that the trigger was the rising temperatures, which didn't seem to be rising that much at the time. I'm particularly suspicious of the snowpack right now.
Happy trails,
Barry Blanchard
Mountain Guide
www.barryblanchard.ca
www.yamnuska.com