More Heavy Rain Coming To Pennsylvania This Week, Rivers Could Flood: NWS

Heavy rain is on the way to the region, prompting a Flood Watch in Bucks, Chester, Delaware, Montgomery and Philadelphia counties beginning Thursday morning and going through Friday afternoon.

The rain, which could include thunderstorms, will likely be heavy at times, especially Thursday morning into early afternoon, the National Weather Service said. Rainfall totals of one to two inches with as much as three inches are expected.

The rain doesn't come at a good time. It's the third rainfall event in the last week and the ground remains wet, while rivers and stream continue to run high.

Minor to moderate flooding could occur along a number of larger rivers late Thursday night into Friday, forecasters warn. The river flooding could continue through the weekend, forecasters say.

Roadway flooding along with flooding in areas of poor drainage is also possible on Thursday, as well as flash flooding. Some small streams and creeks may leave their banks Thursday afternoon into Thursday night, the NWS said.

Here is the forecast:

Tonight: A chance of rain and thunderstorms, then rain and possibly a thunderstorm after 2am. Low around 48. Southeast wind 6 to 11 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday: Rain and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 60. East wind 13 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

Thursday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers. Low around 45. Southwest wind 11 to 13 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday: A chance of showers, mainly after 8am. Cloudy, with a high near 53. West wind 11 to 14 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

Friday Night: Mostly cloudy, with a low around 38.