A resident walks along the coast as Tropical Storm Ida approaches, in Gulfport, Mississippi November 9, 2009. A weakened Tropical Storm Ida drenched the U.S. Gulf Coast and oil installations on Monday, shutting down nearly 30 percent of Gulf energy production. Ida was expected to strike the coast near Mobile, Alabama, early on Tuesday. At one time a Category 2 hurricane, Ida's threat eased as winds dropped to 70 miles per hour (112 km per hour). They were expected to decrease further as the storm approached landfall.