GALVESTON, Texas (AP) — More than half a million people have been ordered to evacuate the Texas and Louisiana coasts ahead of Hurricane Laura. It is the largest U.S. evacuation of the pandemic. Forecasters expect Laura to grow to a major Category 3 hurricane over the warm waters of the Gulf of Mexico before hitting the U.S. coastline late Wednesday or early Thursday. The National Hurricane Center warns of potentially devastating damage. Scientists predict up to 13 feet of storm surge, which could inundate the coastline. Laura already killed two dozen people in Haiti and the Dominican Republic.