CHETUMAL Mexico (Reuters) - The Atlantic hurricane season's first named storm posed an uncertain threat to the Gulf of Mexico on Sunday, as a report said relief wells may halt the worst U.S. oil spill ahead of schedule.
Alex, downgraded to a tropical depression but expected to regain storm strength over the Gulf of Mexico later on Sunday, does not pose an imminent threat to oil-siphoning efforts at BP Plc's blown-out well off the Louisiana coast.
