For a time, the system's proximity to Tropical Storm Marco resulted in hints of the Fujiwhara effect, in which two tropical cyclone appear to rotate around each other. A high-pressure area over Newfoundland steered Lili northeastward, away from the United States, and the tropical storm once again sped up.
During this time frame, there were hints of Fujiwhara effect dynamics near Tropical Storm Marco, showing that two tropical cyclones appeared to rotate around each other. A high-pressure area over Newfoundland directed Lili northeastward, preventing it from impacting the United States and causing the storm to speed up again.