According to the country's central meteorological observatory, Typhoon Doksuri formed in waters east of the Philippines early on Friday and grew into a strong typhoon at 8am on Monday.

据菲律宾中央气象台称，台风“杜苏芮”于（上）周五早些时候在菲律宾东部水域形成，并于周一上午 8 点发展为强台风。