Ash Disrupts U.S. Medevac Flights From War Zones

In this image made available by the Icelandic Coastguard taken Wednesday April 14, 2010, smoke and steam rises from the volcano under the Eyjafjallajokull glacier in Iceland, which erupted for the second time in less than a month, melting ice, shooting smoke and steam into the air and forcing hundreds of people to flee rising floodwaters. Authorities evacuated 800 residents from around the glacier as rivers rose by up to 10 feet (3 meters). Emergency officials and scientists said the eruption under the ice cap was 10 to 20 times more powerful than one last month, and carried a much greater risk of widespread flooding.(AP Photo/Icelandic Coastguard, ho) **EDITORIAL USE ONLY**
AP Photo/Icelandic Coastguard
The volcanic ash cloud disrupting European airways has forced medevac flights from the war zones to go straight to Andrews Air Force Base in Maryland instead of flying into Germany and the hospital at Landstuhl, reports CBS News national security correspondent David Martin.

Four bases used by U.S. aircraft - two in England and two in Germany, including Ramstein - have been closed down, forcing planes to fly southern routes, but the Pentagon says that to date there has been "no major impact" on operations.

Volcanic ash sifted down on parts of northern Europe on Friday and thousands of planes stayed on the tarmac to avoid the hazardous cloud. Travel chaos engulfed major European cities and the U.N. warned of possible health risks from falling ash.

Eurocontrol, the European air traffic agency, said the travel disruptions that reverberated throughout the world Thursday were even worse on Friday, with about 11,000 flights expected to operate in Europe instead of the usual 28,000. It said delays will continue well into Saturday as the massive yet invisible ash cloud moves slowly south and east.

"There will be significant disruption of air traffic tomorrow," spokesman Brian Flynn said, adding the agency would hold a meeting Monday of aviation officials from all 40 Eurocontrol countries.

Iceland Volcano Eruption
Volcano Ash Paralyzes Northern Europe's Airways
Volcano Ash Poses Threat to Global Business
WHO: Falling Volcano Ash a Health Risk
Pain in the Ash: A Guide to Europe's Air Turmoil

Train stations, hotels and car rental agencies were jammed in key European cities by people scrambling to make alternative plans. Extra long-distance trains were put on in Amsterdam and lines to buy train tickets were so long the train company was handing out free coffee.

The high-speed Thalys trains, a joint venture of the French, Belgian and German rail companies, allowed passengers to buy tickets even if there were not enough seats.

Aviation experts said it was among the worst disruptions Europe has ever seen.

Ice chunks the size of houses tumbled down from a volcano beneath Iceland's Eyjafjallajokull glacier on Thursday as hot gases melted the ice. The volcano began erupting Wednesday for the second time in less than a month.

As torrents of water roared down the steep slopes of the volcano, flash floods washed away chunks of Iceland's main ring road. More floods are expected as long as the volcano keeps erupting, which scientists said it was continuing to do in daily pulses.

The cloud of basalt, drifting between 20,000 to 30,000 feet high and invisible from the ground, at first blocked the main air flight path between the U.S. east coast and Europe. On Friday, the British Meteorological Office said the cloud's trajectory was taking it over northern France and Austria and into eastern and central Russia at about 25 mph.

Fearing that microscopic particles of highly abrasive ash could endanger passengers by causing aircraft engines to fail, authorities shut down air space over Britain, Ireland, France, Denmark, Norway, Sweden, Finland and Belgium. That halted flights at Europe's two busiest airports - Heathrow in London and Charles de Gaulle airport in Paris - as well as dozens of other airports, 25 in France alone.

Only about 120 trans-Atlantic flights reached European airports Friday morning, compared to 300 on a normal day, said Eurocontrol. About 60 flights between Asia and Europe were canceled.

U.S.-based airlines cancelled more than 205 transatlantic flights on Thursday alone, reports CBS News Correspondent Elizabeth Palmer from London.