Flash flood watch issued for coastal Mississippi

National Hurricane Center

As Tropical Storm Harvey inundates Texas with unprecedented flooding, the National Weather Service has extended the threat of heavy rainfall further east.

A flash flood watch is in effect through Thursday for Hancock, Harrison, Jackson and Pearl River counties. Rainfall amounts of 5 to 10 inches are possible, and as much as 2 to 3 inches per hour could fall.

The weather service predicts Tuesday to be the wettest for South Mississippi, and tornadoes also are possible.

Much of southern Louisiana, including New Orleans, has already seen flash flooding and heavy rains. The Weather Prediction Center warned Sunday night that just 3 to 5 inches of rain could cause issues for the city’s faulty drainage system, which has caused flooding from summer thunderstorms. The Advocate reported Monday more than 50 locations had experienced street flooding.

Harvey was expected to move slowly offshore Monday night before heading back inland near Houston on Tuesday, but it’s not likely to strengthen much over water, the weather service predicted. On Wednesday it’s expected to start slowly moving northeast along the Louisiana-Texas line.

The weather service warns the storm has been and will continue to be erratic, so residents should stay aware of the latest forecasts.