Jetstar Pacific said it cancels four flights between Ho Chi Minh City and Chu Lai (Quang Nam province) and HCM City-Dong Hoi (Quang Binh province) on late September 14 and 12 other flights on September 15 between HCM City and Thanh Hoa/Hue/Vinh (Nghe An province)/ Dong Hoi, and between Hue and Da Lat (Lam Dong province)/Dong Hoi/ Chiang Mai (Thailand). Vietjet Air suspended its flights between HCM City and Chu Lai airport on September 14. Doksuri, the biggest storm to hit Vietnam in many years, is forecast to make landfall in the central region on late September 15 and early September 16.  This is the first time Vietnam has rated the Danger Level 4 for a storm, said Hoang Duc Cuong, head of the National Centre for Hydro-Meteorological Forecasting (NCHMF).