NOAA warned of a rare high-risk level for excessive rainfall that could cause flash flooding in a stretch from eastern Louisiana to the Florida Panhandle on Thursday.

Arthur has dissipated, but its remnants are producing life-threatening flooding, torrential rain and tornado threats across the South and Gulf states.

What had been Tropical Storm Arthur continued to dump heavy, flooding rain across the Gulf Coast and the Southeast on Thursday, June 18.

The remnants of Tropical Storm Arthur are bringing severe thunderstorms, heavy rain, and a tornado watch to Georgia tonight. Wind gusts up to 60 mph and a flood watch are also in effect, with more rain possible through Saturday.

The remnants of Tropical Storm Arthur will move across the Carolinas early Friday before pushing offshore into the Atlantic. It will conclude a violent week of weather across the South, marked by a 1-in-200 year rain event in Louisiana,

The storm is dumping heavy rain across the Gulf Coast and Southeast as tropical storm watches and warnings are in effect in parts of the region.

"Heavy rainfall with the potential for widespread and life-threatening flash flooding is likely," the NHC said.

Tropical Storm Arthur swept in from the west, causing widespread flooding across Gulfport, Mississippi, Louisiana, and Texas. Dozens were evacuated by airboat, cars stranded, and even livestock rescued as heavy rain left neighborhoods underwater.