text1: With Hurricane Katrina likely to strike the city of New Orleans , its mayor, along with the governor of Louisiana , has officially enforced a mandatory evacuation for the city. All citizens, with the exception of a few individuals essential to the operation of a handful of organizations (such as hotels and the media), should immediately leave the city and head for higher ground. The mayor has stated that rising waters from the Category 5 storm are likely to overtake the city's system of levees , which are designed to prevent flooding in the city.
text2: The Category 5 storm overtook New Orleans levees.