NEW ORLEANS (AP) — Forecasters say Tropical Storm Ida could be a major Category 3 hurricane with top winds of 120 mph when it nears the U.S. coast. The National Hurricane Center says Ida is already rapidly intensifying and could speed across warm Gulf waters and slam into Louisiana on Sunday after hitting Cuba on Friday. Category 3 hurricanes can cause devastating damage. Climate scientist Jim Kossin says it’s headed straight towards New Orleans. Gov. John Bel Edwards has declared an emergency for all of Louisiana and says people should be in safe places to ride out the storm by Saturday night.