9 September 2013
On Thursday an intense thunderstorm struck Stehekin in the North Cascades National Park in Washington State, USA. The storm triggered a large and quite dramatic debris flow that inundated a car park and a number of buildings. The National Parks Service has put a number of photos of the event on its Flickr page – they rather nicely illustrate the damage that such an event can cause:
Interestingly, this article explores the possible causes of the landslide, which appears to be larger than is normal in this region. They speculate that a factor may be recent forest fires in the area, which has left the soil vulnerable to landslides. This is entirely possible as a causative factor.
Thanks to Ellen Hardy for he pointing this event out to me.