Hurricane Francine made landfall in the US state of Louisiana late Wednesday, the National Hurricane Center (NHC) said.The center said that heavy rain and hurricane-force winds were spreading across southern Louisiana, with wind speeds estimated at 155 km/h, making Francine a Category 2 storm.The NHC urged residents to shelter indoors and stay away from windows.Some places could see up to 30cm of rain, bringing the risk of significant flash flooding.