7 p.m. update: The National Weather Service in State College has issued a flash flood warning for southern York County until 9:45 p.m. Rainfall rates in excess of 2 inches per hour might cause localized flooding.
5:45 p.m. update The National Weather Service has now issued a flood advisory for York and the surrounding areas until 8:45 p.m.
At 5:39 p.m., radar indicated a line of storms moving through the area capable of producing 2 inches of rain in an hour.
That could lead to urban and small stream flooding.
1:30 p.m. update: The National Weather Service has now issued a severe thunderstorm watch for York County and the surrounding area.
The watch began at 1:25 p.m. and will continue until 8 p.m.
Previous story: The National Weather Service has issued a flash flood watch for an area of south-central Pennsylvania, including York County. The watch is in effect from 10 a.m. to 10 p.m. this evening.
More heavy rain is expected today, the result of showers and thunderstorms that could drop more than an inch of rain an hour.
The weather service is predicting a slight risk for severe storms and warned that one of two of those storms could produce brief tornadoes in the late afternoon or early evening.
Today's high is expected to peak near 85 degrees and the low should be around 69.
Look for isolated showers, then showers and thunderstorms after 9 a.m. Tuesday. Otherwise, it should be mostly cloudy, with a high near 83 and a low of around 61.
There's a chance of showers and thunderstorms before 9 a.m. Wednesday. The day should be mostly sunny, with a high near 78 and a low around 59.