NEW : The ash will reach Scotland on Tuesday , Iceland 's umbrella air traffic control tower says . NEW : Iceland predicts the cloud could reach France and Spain on Thursday . In 1783 , a 16.7-mile fissure system from the volcano produced the world 's largest known historical lava flow over a seven-month period , damaging crops and livestock , according to the Smithsonian National Museum of Natural History . International flights into and out of Iceland are suspended , airport spokeswoman says . There is no ban on European or transatlantic flights , Eurocontrol says .
NEW : The ash will reach Scotland on Tuesday , Iceland 's umbrella air traffic control tower says . NEW : Iceland predicts the cloud could reach France and Spain on Thursday . International flights into and out of Iceland are suspended , airport spokeswoman says . There is no ban on European or transatlantic flights , Eurocontrol says .