CLAYTON, N.C. (WNCN) — The National Weather Service has issued two flood warnings Sunday morning in Johnston County.

At 9:13 a.m., officials warned about the Neuse River flooding in Smithfield. It follows an earlier warning issued at 6:54 a.m. for Clayton and Johnston County.

The National Weather Service says this second warning will last from Sunday evening until late Monday evening.

In the Smithfield area, they report that at 15 feet, minor flooding begins along the Neuse Riverwalk. They say water would near the base of the holding tank at the water treatment plant.

They say moderate flooding begins at 18 feet, flooding the Smithfield town park and the Neuse Riverwalk at the US-70 bridge.

As of 8:15 a.m. Sunday, data shows the stage was at 10.8 feet. Experts expect the river to rise above the flood stage Sunday evening to 16.5 feet just after midnight. They predict it will fall below the flood stage late Monday morning.

When encountering flooded roads, officials say people should turn around and avoid drowning because most flood deaths happen in vehicles.

The first warning issued at 6:54 a.m. is for the Neuse River near Clayton and Johnston County. It goes until about midnight Sunday night.

Runoff from heavy rain over the past 24 hours has resulted in a paid rise on the river near Clayton, according to the National Weather Service.

As of 6:15 a.m., they report the stage was 8.5 feet, which could rise above the flood stage of 9 feet late Sunday morning to about 9.1 feet.

At that level, they say the river will reach the edge of the Neuse River Greenway trail.

At 10 feet, Upstream of the gage site, they say the Neuse River Greenway at Covered Bridge Road would begin to flood.

The National Weather Service predicts the level will fall back below the flood stage Sunday afternoon.

Officials urge people to use caution when walking near riverbanks. They say you should not let children play near flooded waterways.

The National Weather Service Plans to issue another statement Sunday evening around 7.