At midafternoon, the Perkiomen Creek at Grateford had risen to 10.2 feet, just 0.8 feet below flood stage, and the National Weather Service has issued a flood warning for that area into Thursday evening.
The weather service is forecasting a crest of 13.8 feet at 2 a.m. Thursday, or almost 2 feet above flood stage, and that means that some houses along the creek in Graterford are going to get flooded.
Meanwhile, a generalized flood warning remains in effect until 6:45 p.m. for creeks in Philadelphia and in Chester, Delaware, Montgomery, and New Castle Counties, and a flood advisory is up for South Jersey.
Also, officials in Whitemarsh Township, Montgomery County, report they are taking precautions, with the Wissahickon Creek close to flood stage, and some road closures are possible.
Fortunately, the Delaware River and Schuylkill remain well within their banks.