The Central Weather Administration (CWA) issued heavy rainfall advisories at 2010 hours (local time) on Thursday (04 June), valid from Thursday (04 June) through early Friday (05 June) morning.

• A heavy rainfall or extremely heavy rainfall advisory is in effect for New Taipei City, Taoyuan City, Hsinchu County mountain areas, Nantou County, and Kaohsiung City mountain areas.
• A heavy rainfall advisory is also in effect for Taipei City, Hsinchu County, Miaoli County mountain areas, Taichung City mountain areas, Yunlin County, Chiayi City, Chiayi County, Tainan City, Kaohsiung City, Pingtung County, Hengchun Peninsula, Yilan County mountain areas, Hualien County mountain areas, Taitung County mountain areas, and Matsu Area.