Storm Isaac to be downgraded

Tropical storm Isaac is forecast to become a tropical depression by the National Hurricane Centre later today. The Mayor of New Orleans has enforced a dawn-to-dusk curfew as Isaac continues to lash the city.

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Heavy rain threat from Isaac to spread inland

Heavy rain threat from Tropical Storm Isaac to spread inland during the next few days and water levels remain high along the northern Gulf Coast.

"Even though Isaac is no longer a hurricane, life-threatening hazards from storm surge and inland flooding are still occurring," the U.S National Hurricane Center.

Isaac, which is packing winds of 60 miles per hour (95 km/h), is moving toward the northwest near 6 mph (9 km/h) and is expected to continue in this direction through today, followed by a turn toward the north-northwest by tonight or early Friday, the NHC said.

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