Heavy Rain Advisory Issued for 6 Counties; Expert Warns of Peak Plum Rain Season Next Week
The Central Weather Administration issued a heavy rain advisory for six counties and cities, including Tainan, Kaohsiung, and Pingtung. Meteorologist Wu Derong warned that the 5th Mei-Yu front of the season will arrive from June 8 to 14, marking the start of Taiwan's typical peak plum rain period.
📋 Article Processing Timeline
- 📰 Published: June 5, 2026 at 09:14
- 🔍 Collected: June 5, 2026 at 09:25 (11 min after Published)
- 🤖 AI Analyzed: June 6, 2026 at 15:22 (29h 56m after Collected)
TAIPEI (CNA) – The Central Weather Administration (CWA) issued a heavy rain advisory for six counties and cities, including Tainan, Kaohsiung, and Pingtung, on Wednesday. Meteorologist Wu Derong said a low-pressure cloud system passing over southern Taiwan would bring localized showers and thunderstorms, with convective activity intensifying in the afternoon. He added that the 5th Mei-Yu front of the season is expected to arrive from June 8 to 14, ushering in a typical peak period for the plum rains.
The CWA issued the advisory early Wednesday morning, citing the influence of southwesterly winds, a low-pressure system, and a frontal system, which could lead to short-duration heavy rainfall. Heavy rain had already occurred in the mountainous areas of New Taipei City, Taichung City, Hsinchu County, and Kaohsiung City. On Wednesday, localized heavy rain was expected in Tainan, Kaohsiung, Pingtung, Hualien, Taitung, and the mountainous areas of Yilan County. The CWA warned of landslides and falling rocks in mountainous areas and flooding in low-lying areas.
Wu Derong, an adjunct associate professor at National Central University's Department of Atmospheric Sciences, wrote in a column for the Weather Application Promotion Foundation that the latest European Centre for Medium-Range Weather Forecasts (ECMWF) model shows increased moisture and unstable atmospheric conditions from Wednesday to Friday. He noted that a low-pressure cloud system passing over southern Taiwan on Wednesday would bring localized showers and thunderstorms, with convective activity intensifying in the afternoon across the island.
Wu pointed out that while the low-pressure cloud system will move away on Thursday and Friday, strong convective development is still possible in some areas during the afternoon. He urged the public to be aware of the severe weather (lightning, strong winds, and intense short-duration rainfall) that could accompany these conditions from Wednesday to Friday.
According to the latest model simulations, Wu said the 5th Mei-Yu front of the season will oscillate north and south (a stationary front) from June 8 to 14, coinciding with the prevailing southwest monsoon. This will bring Taiwan into a typical peak period for the plum rains. Due to the highly unstable atmosphere, mesoscale systems are likely to be triggered, bringing threats of severe weather (lightning, strong winds, intense short-duration rainfall) and disastrous rainfall. He advised everyone to pay close attention to CWA special advisories during this period and prepare for disaster prevention early.
Regarding how long the peak plum rain period will last, Wu said the latest European and American models indicate the pattern will persist at least until June 14. However, he cautioned that simulations beyond 10 days have high uncertainty and lower reliability, so it is best not to jump to conclusions and to continue monitoring the situation. (Editor: Li Shuhua) 1150605
The CWA issued the advisory early Wednesday morning, citing the influence of southwesterly winds, a low-pressure system, and a frontal system, which could lead to short-duration heavy rainfall. Heavy rain had already occurred in the mountainous areas of New Taipei City, Taichung City, Hsinchu County, and Kaohsiung City. On Wednesday, localized heavy rain was expected in Tainan, Kaohsiung, Pingtung, Hualien, Taitung, and the mountainous areas of Yilan County. The CWA warned of landslides and falling rocks in mountainous areas and flooding in low-lying areas.
Wu Derong, an adjunct associate professor at National Central University's Department of Atmospheric Sciences, wrote in a column for the Weather Application Promotion Foundation that the latest European Centre for Medium-Range Weather Forecasts (ECMWF) model shows increased moisture and unstable atmospheric conditions from Wednesday to Friday. He noted that a low-pressure cloud system passing over southern Taiwan on Wednesday would bring localized showers and thunderstorms, with convective activity intensifying in the afternoon across the island.
Wu pointed out that while the low-pressure cloud system will move away on Thursday and Friday, strong convective development is still possible in some areas during the afternoon. He urged the public to be aware of the severe weather (lightning, strong winds, and intense short-duration rainfall) that could accompany these conditions from Wednesday to Friday.
According to the latest model simulations, Wu said the 5th Mei-Yu front of the season will oscillate north and south (a stationary front) from June 8 to 14, coinciding with the prevailing southwest monsoon. This will bring Taiwan into a typical peak period for the plum rains. Due to the highly unstable atmosphere, mesoscale systems are likely to be triggered, bringing threats of severe weather (lightning, strong winds, intense short-duration rainfall) and disastrous rainfall. He advised everyone to pay close attention to CWA special advisories during this period and prepare for disaster prevention early.
Regarding how long the peak plum rain period will last, Wu said the latest European and American models indicate the pattern will persist at least until June 14. However, he cautioned that simulations beyond 10 days have high uncertainty and lower reliability, so it is best not to jump to conclusions and to continue monitoring the situation. (Editor: Li Shuhua) 1150605