Floodwater accumulated along the southern Texas coastline on Sunday, August 14, as heavy rainfall and thunderstorms swept across the area, according to the National Weather Service (NWS).This footage was captured by Twitter user @ScottyP1063, who said it was filmed in Port Aransas on Sunday.Heavier showers may lead to flash flooding in the area throughout the afternoon, the NWS warned. Credit: @ScottyP1063 via Storyful