On July 26, the Japan Meteorological Agency (JMA) reported that a tropical depression had developed within an area of strong vertical windshear in the monsoon trough about 1,000 kilometres (620 mi) to the southeast of Manila in the Philippines.

[6][7] Soon, the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) upgraded the system to a tropical depression and named it Gener.

[10] On July 30, the JTWC upgraded Saola to a category 1 typhoon, as it started to develop an eye-like feature, but soon downgraded it to a tropical storm late on the same day.

[16] However, Saola later moved counterclockwise and arrived the ocean soon, whilst the JMA downgraded it to a severe tropical storm early on August 2 due to strong land interaction.

[19] On August 3, the JMA downgraded Saola to a tropical depression, after the JTWC issued a final warning on the system.

Flooding is imminent as different dams are expected to reach its critical level and possibly release huge millimeters of water.

Early on July 30, classes were suspended from pre-school to tertiary level as strong winds and severe rainfall were recorded throughout Metro Manila and nearby provinces.

[34] As the storm made landfall in Taiwan, almost the entire island suspended services as high winds and rains triggered flooding in several locations.

[35] Two passenger boarding bridges collapsed at Taoyuan International Airport, which serves Taipei, slightly damaging a China Airlines aircraft and forcing the company to scrap the flight.