The volcanic ash cloud is bearing down on Northern Britain, and air travelers are scrambling to find ways out, as flights are canceled.
British Airways says it is canceling all Tuesday morning flights between London and Scotland Tuesday morning because of forecasts of volcanic ash in Scottish airspace.
It's all a result of the eruption of the Grimsvotn volcano in Iceland, which has pumped a vast plume of ash high into the atmosphere.
Even President Barack Obama was forced to take notice in Ireland.
President Obama and Mrs. Obama are in London. They arrived from Ireland last night ahead of schedule because of concerns about the ash cloud.
Several activities are on the first couple's agenda today including lunch with Queen Elizabeth.