hamburg international airport and bremen international airport were closed today and the cloud is expectedct other parts of northern and eastern europe, including scandinavia, poland and russia. the uk's official weather center says the plume will cover all of british air space on wednesday, that does not necessarily mean that there will be masses of flights canceled. because of the different levels of ash density, airlines can still apply to fly in some places. a british airways plane made a test flight on tuesday, b.a. says it's expecting to operate normal flights today. in iceland, the grimsvotn volcano is calming down. officials in the country are saying that the eruption itself is almost over. let's get more on the situation in germany, where it's not over yet for so many travelers. fred platkin is at cnn in berlin. fred, how long are the airports going to be closed and how long are travelers going to wait? >> reporter: zain, for some travelers, the nightmare is just beginning. two berlin airports, among the largest in germany, just shut down a couple of minutes ago, the airspace clos