The Hurricane Warning for the New Orleans area and Lake Pontchartrain is now a tropical storm warning as Hurricane Nate makes landfall at the mouth of the Mississippi River, the National Hurricane Center said in its 7 p.m. update Saturday. 

The New Orleans area remained little affected by Hurricane Nate as a 7 p.m. curfew started in the city and the NHC issued a fresh update showing the storm continuing to spin quickly toward the Gulf Coast.

Nate slowed slightly to 20 mph and was making landfall near the mouth of the Mississippi. The center of the storm was about 100 miles south of Biloxi, MS, with maximum sustained winds at 85 mph, a slight decrease from a few hours earlier.

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Nate's center was expected to make a second landfall along the Mississippi coast tonight and then pass up through parts of Mississippi, Alabama and Tennessee through Sunday.

Strengthening of the storm "appears unlikely" before it reaches the Gulf Coast, the report said.

A hurricane warning remained in effect from Grand Isle to Florida.

Heavy winds and storm surge, not rain, were the main threats to the New Orleans area.

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