Updated at 11:15 a.m.
The National Weather Service has extended a flash flood warning for north-central Prince George’s County until 2:30 p.m. and for the central part of the county until 1:45 p.m.
Radar indicates very heavy rain capable of producing flash flooding. Up to an inch of rain has fallen across some of the area, with up to 2 more inches expected over the afternoon.
Prince George's County emergency management officials said that up to 4 inches of rain has been reported in some areas. Rain is expected to move form southern Montgomery County back into Prince George's County this afternoon, with another inch of rain possible.
Some locations that are affected by the heavy rain include College Park, Greenbelt, Hyattsville, and Laurel.
Excessive runoff from heavy rainfall will cause flash flooding of small creeks and streams, urban areas, highways, streets, underpasses and other drainage areas and low-lying spots.
The forecast calls for a 30 percent chance of more rainfall in the area today and overnight, with a 60 percent chance of rain Wednesday and Thursday.