UPDATE: Tropical Storm Barry

Barry was a category one hurricane before being downgraded

Flooding Highways, People on rooftops and heavy rain.

Barry, which was downgraded from a Category 1 hurricanes to a Tropical Storm, rolled into the Louisiana coast Saturday.

A National Weather Service forecaster says New Orleans may escape with as much as 100 milimetres of rain.

But officials warned that Barry could still cause disastrous flooding across a wide stretch of the Gulf Coast and drop up to 500 millimeters through Sunday across other parts of Louisiana.

Oil and gas operators evacuated hundreds of platforms and rigs in the Gulf of Mexico. Nearly 70% of Gulf oil production and 56% of gas production were turned off Saturday, according to the U.S. Bureau of Safety and Environmental Enforcement.

More than 120,000 customers in Louisiana and another nearly 6,000 customers in Mississippi and Alabama were without power Saturday.

The storm had maximum sustained winds of 75 mph (120 km/h), just above the 74 mph (120 km/h) threshold to be a hurricane.

Downpours also lashed coastal Alabama and Mississippi.