[1] Nangka would impact Hainan and parts of Indochina, which had been affected by Tropical Storm Linfa just days earlier.

On October 11, 2020, the Japan Meteorological Agency (JMA) began tracking a tropical depression off the west coast of Luzon.

[7] The system continued tracking westward, returning to open water, before making a second landfall in Ninh Bình, Vietnam on October 14.

8 warning for the area when the cyclone was 450 kilometres (280 mi; 240 nmi) away from the Observatory, making it the furthest Signal No.

[12][13] After the passage of Nangka over Hainan Island, 2 people died and 4 are missing as a result of a capsized boat.