Cold air brings rain and thunderstorms to northern Vietnam early October

Cold air is expected to move slowly across northern Vietnam, bringing rain and thunderstorms on October 3‑4, with temperatures dropping to 20‑23 °C and some areas as low as 19 °C.2
The weather system will produce heavy rain in Tuyen Quang province in the morning and a risk of lightning and strong winds, conditions that may disrupt flights at nearby Noi Bai International Airport in Hanoi.2,3