WeatherWhys for June 19,2014 from accuweather.com

During late June 1972, Hurricane Agnes made landfall in the Florida Panhandle and then made a rare loop into the Northeast instead of taking a typical track off the coast. Another storm system drew Agnes, which was a tropical storm at that time, back to the west. That resultant loop led to rainfall total of 8 to 16 inches from northern Virginia to southwestern New York. One location in western Schuylkill County, Pennsylvania, topped the rainfall list with 19 inches.