World news tonight with david muir is next. For sandhya patel all of us here, thanks for joi tonight, bracing for impact. The major tropical system that could become a dangerous hurricane. Several states on alert. Authorities warn the Mississippi River has never been this high, with 20 inches of rain now coming. It will test the levees in new orleans. Rob marciano live with the new track and the timing tonight. Also tonight, the Passenger Jet rocked by sudden and severe turbulence 36,000 feet in the air. The jet plummeting. Oxygen masks dropping. Nearly three dozen passengers hurt. Many hitting their heads on the ceiling. The u. S. Coast guard and the high speed chase on open water, going after a suspected narcosubmarine. The stunning discovery inside. In New York City tonight, the taxi slamming into a restaurant with customers inside right at lunchtime. Multiple injuries. The deadly outbreak in a retirement community. At least two patients dead. Dozens more sickened. And were on the s
meteorologist rob marciano leads us off from new orleans. reporter: along the louisiana coast tonight, thousands sandbagging and scrambling to evacuate ahead of tropical storm barry. we re just hoping everything will be okay and life and property will stay safe. reporter: in new orleans, hundreds of flood gates are closed in and around the city. the mayor telling residents there to have a plan and be ready to shelter in place. you need to have at least 72 hours of food, water and medication for everyone in the house, including your pets. reporter: just a day after storms tore through new orleans and flash flooding swamped this city in just a few hours, louisiana is facing a new threat for the first time. a potential hurricane roaring ashore while the mississippi river is still at flood stage. swollen by months of flooding upstream. this is going to be a major weather event for a huge portion of the state of louisiana. and everyone needs to pay attention to the track. repo