The National Weather Service has issued a flood advisory until 3 p.m. for York and surrounding counties.
At noon, doppler radar indicated a line of showers that could bring isolated, heavy rain to some communities in the advisory area.
That would be on top of the 1 to 2 inches of rain that have already fallen in those areas.
That could cause flood of small streams and creeks, the weather service said.
A flash flood watch also remains in effect until 10 p.m. Friday.
The weather service was forecasting a 50 percent chance of rain Friday night.
No precipitation is in the forecast for Saturday, Sunday or Monday.