More than half a million people in Texas and Louisiana have been urged to flee from their homes. Huffpost reports this is as Hurricane Laura, a category 4 hurricane, approaches. Forecasters have warned it will bring “unsurvivable” storm surges to some areas. It is on track to make landfall near the Texas-Louisiana border on Wednesday night into early Thursday. It’s expected to be the most powerful hurricane to hit the U.S. this year so far. Life-threatening surges of up to 20 feet could deluge some areas.