Acadiana parishes braced for more rain Wednesday night and Thursday with the National Weather Service forecasting 2 to 4 more inches to fall on the already saturated ground, increasing the chances of flooding.

The Lafayette Parish school system announced Wednesday evening that schools will be closed Thursday.

“Tonight’s (Wednesday) going to be the biggie for you,” said Mike Marcotte, a meteorologist with the National Weather Service in Lake Charles, referring to Acadiana.

“Flash flooding is going to be your biggest concern,” Marcotte said.

Jay Castille, city manager for Carencro, watched the skies Wednesday, worried about a repeat of March, when a freakish storm dumped 15 inches of rain on the city north of Lafayette.

“We still have issues with our sewerage system,” he said. “We’re watching the coulees right now. … Everything seems to be flowing out real good.”

School districts that told students to stay home Wednesday debated whether to close Thursday.

St. Landry school system, which was open Wednesday, said it was waiting until Thursday morning to decide whether to close.

Some Acadiana school districts that closed Wednesday — including Vermilion, Iberia and St. Martin — also waited.

The St. Mary Parish School Board, which told students to stay home Wednesday, announced on its website that schools would remain closed Thursday.

Marcotte said Acadiana had 3 to 6 inches of rain from Tuesday through 3 p.m. Wednesday.

Law enforcement agencies reported no road closures, though the roads were slick.

“There are some roads that have water over the road, but they’re not closed,” said Lt. JoAnn Housden, of the Vermilion Parish Sheriff’s Office.

Housden said the Vermilion Parish School Board will notify deputies Thursday morning if school is to be canceled.