2020 Pacific typhoon season
A low-pressure area near Micronesia slowly organized over the course of a few hours, and developed into a tropical depression soon after. It became the first tropical cyclone to form in the Western Pacific in 2020, and PAGASA named it "Ambo". Favourable sea temperatures, low wind shear and excellent vertical outflow made the system intensify into a tropical storm, then the JMA named it "Vongfong".