Volcanic ash cancels Australian flights again

Volcanic ash grounded hundreds of flights and stranded thousands of passengers last week when it hovered over several Australian cities and New Zealand. By Friday, all flights were running normally. But the ash has lapped the globe again and should begin causing problems again Tuesday.

Virgin Australia canceled all flights to and from the mid-size city of Adelaide and a nearby smaller city for Tuesday. Other airlines say they are still looking at meteorological data.

The Volcanic Ash Advisory Center said Monday that the ash could eventually disrupt air traffic in Sydney and Melbourne, the country’s two largest cities.