(Bloomberg) — Storm Nicholas is lashing the U.S. Gulf Coast with torrential rain that could last for days, knocking out power, unleashing floods and dealing another blow to the energy industry just two weeks after Hurricane Ida.

The storm, now classified as a tropical depression, is moving across the southeastern edge of Texas and into Louisiana, with maximum sustained winds of 30 miles (45 kilometers) per hour, the National Hurricane Center said in its most recent public advisory Wednesday (Sep. 15) morning. It is expected to pose a danger as it drags across the region before dissipating Thursday night or Friday local time.

"Essentially, it is a very slow crawl to the east-northeast, and given that it is going so slow, life-threatening flash flooding could occur over the northern Gulf Coast for the next couple of days," said Lara Pagano, a senior branch forecaster at the U.S. Weather Prediction Center. "We just have multiple rounds of heavy rains that will be moving through the area."