 After landfall , the cyclone accelerated in forward speed northward , weakening in intensity , and , by 1200 UTC on October 12 , Marco became an extra @-@ tropical cyclone . It turned to the northeast and east through South Carolina , following behind Hurricane Lili to its northeast . For a time , the system 's proximity to Lili resulted in hints of the Fujiwhara effect , in which two tropical cyclone appear to rotate around each other . The cold front that absorbed the weakening low was to the storm 's north on October 13 , though moisture from the remnants of Marco dropped heavy rainfall across the southeast United States for another day . 
