Volcanic activity at Mount Redoubt - about 180 kilometres southwest of Anchorage, Alaska - since 22 March has seen eruptions sending plumes of steam and ash up to 50,000 feet skyward forcing some air cargo flights destined for technical stops at Ted Stevens Anchorage International Airport to be diverted elsewhere. The last time Mount Redoubt erupted, in December 1989, the mountain shot ash more than 12,000 metres high and caught a KLM Royal Dutch Airlines flight in its plume, shutting down all … [Read more...] about Redoubt ash disrupts Anchorage flights