Parts of Arkansas and Mississippi were also under a threat of tornadoes. The weather agency warned that it was a “particularly dangerous situation” in Louisiana, which the governor noted was a rare high-level warning. Straight line winds could reach upward of 80 mph (130 kph) winds. Hurricanes have at least 74 mph (120 kph) winds. In the city of Alexandria winds blew off the roof of a gas station and knocked out power to thousands. Other areas were also affected. A flash-flood warning was in effect for a large swath of east Texas and Louisiana. A Texas state trooper reported seeing a suspected tornado touch down early Sunday morning near Center Point, Texas, about 55 miles (90 kilometers) northwest of San Antonio. Schools to close Monday as storms approach Alabama.