Winds are up to 145 mph as storm pushes toward coast

Laura is a Category 4 hurricane with "unsurvivable storm surge" expected in some areas, according to the National Hurricane Center.

"Unsurvivable storm surge with large and destructive waves will cause catastrophic damage from Sea Rim State Park, Texas, to Intracoastal City, Louisiana, including Calcasieu and Sabine Lakes," the NHC said in a statement. "This surge could penetrate up to 30 miles inland from the immediate coastline. Only a few hours remain to protect life and property and all actions should be rushed to completion."