U.S. natgas futures tumble 5 percent as Gustav weakens

NEW YORK (Reuters) - U.S. natural gas futures fell more than 5 percent in electronic trading on Monday as Hurricane Gustav weakened to a Category 2 storm.

Gustav, which is expected to make landfall later Monday on the Louisiana coast, had been forecast to be as strong as a Category 4 storm earlier.

(Reporting by Robert Campbell; Editing by John Picinich)