Tropical Storm Nate: Parts of New Orleans evacuated as storm approaches
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Authorities have evacuated residents from areas in New Orleans that are expected to be affected by the approaching storm. Experts say Nate is set to become a Category-one hurricane by the time it hits the US central Gulf Coast over the weekend.
 
The greatest threat from the storm will be strong winds and a storm surge. The National Weather Service has put much of coastal Louisiana, Mississippi and Alabama, under a hurricane warning.