Cornices have become very large recently. When they break and fall they can trigger avalanches. The slide just left of center in this photo was triggered by a falling cornice and caused the snowpack to break in two different layers. The good news is that this slide did not propagate much beyond the area where the cornice hit the slope but could be a warning of more avalnches to come with more snowfall. Photo: Barnes
Forecast link: GNFAC Avalanche Advisory for Fri Feb 28, 2014