UPDATE, 10:40 p.m.: The National Weather Service has extended the flood warning to 4 a.m. Thursday.

"A flood warning means that flooding is imminent or has been reported," the NWS says. "Stream rises will be slow and flash flooding is not expected."

UPDATE, 6:50 p.m.: The National Weather Service has issued a flash flood warning for Northampton County until 10:45 p.m.

Please report flooding, hail or wind damage to the NWS by calling 1-877-633-6772 (toll-free).

UPDATE, 5:25 p.m.: The National Weather Service has issued a flood advisory for eastern Pennsylvania until 8 p.m.

"National Weather Service Doppler radar indicated an area of showers and thunderstorms with very heavy rain moving into the region," the NWS says, adding that as much as 1 to 1 1/2 inches of rain could fall.

"This much rain will result in street flooding as well as sharp rises in creeks and streams," the NWS says.

Original Post: The National Weather Service has issued a flash flood watch for Northampton County that will last until Thursday afternoon.

"There is the possibility of heavy rains at times through Thursday," the NWS says. "The ground remains very wet from the rains of the past month and cannot hold much rainfall."

The latest weather forecast shows a chance of rain or thunderstorms for the next three days.