Wu Derong: Beware of Day-Night Temperature Differences Before the 20th, Rain Across Taiwan Starts on the 24th
The Central Weather Administration issued long wave alerts. Associate Professor Wu Derong warned of large day-night temperature differences before the 20th and forecast rain across Taiwan starting the 24th.
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- 📰 Published: April 19, 2026 at 09:38
- 🔍 Collected: April 19, 2026 at 11:00 (1h 22m after Published)
- 🤖 AI Analyzed: April 19, 2026 at 11:15 (15 min after Collected)
The Central Weather Administration (CWA) issued real-time long wave information today. The coastal areas of the Keelung north coast, the eastern half (including Green Island and Lanyu), and the Hengchun Peninsula are prone to long waves. Wave heights of about 1.5 to 2 meters have been observed in Su'ao, Yilan, and Lanyu, Taitung.
Wu Derong, an adjunct associate professor in the Department of Atmospheric Sciences at National Central University, stated today in his "Leak Heaven Classroom" column for the Meteorological Application Promotion Foundation that the latest European model simulations show that from the 19th to the 21st, influenced by dry air, today and tomorrow will turn clear and stable everywhere. It will get hotter day by day during the day with a large temperature difference between day and night, and occasional scattered rain in Hualien and Taitung. On the 21st, it will be mostly clear to cloudy everywhere, temperatures in northern Taiwan will drop slightly, and the eastern half will have occasional localized brief showers.
Wu Derong stated that on the 22nd and 23rd, moisture will slightly increase. It will still be mostly clear to cloudy everywhere and relatively hot during the day, with occasional localized brief showers in mountainous areas in the afternoon. Early on the 24th, a front will move south, and from north to south, it will turn to localized showers or thunderstorms. On the 25th, still affected by the front, the rainfall area will expand, and all regions will have localized showers or thunderstorms. Temperatures will drop on the 24th and 25th, and northern Taiwan will turn cool.
Wu Derong pointed out that on the 26th and 27th, the front will move away, the weather will be stable, and temperatures will rebound. On the 28th, another front will move in, and the weather will change again. Various models are still continuously adjusting towards the end of the period, and continued observation is needed.
Wu Derong mentioned that the latest CWA data shows that the 4th mild typhoon, "Sinlaku," is accelerating northeastward over the sea southeast of Japan and continuing to weaken; it poses no threat to either Taiwan or Japan. (Editor: Zhang Mingkun) 1150419
Wu Derong, an adjunct associate professor in the Department of Atmospheric Sciences at National Central University, stated today in his "Leak Heaven Classroom" column for the Meteorological Application Promotion Foundation that the latest European model simulations show that from the 19th to the 21st, influenced by dry air, today and tomorrow will turn clear and stable everywhere. It will get hotter day by day during the day with a large temperature difference between day and night, and occasional scattered rain in Hualien and Taitung. On the 21st, it will be mostly clear to cloudy everywhere, temperatures in northern Taiwan will drop slightly, and the eastern half will have occasional localized brief showers.
Wu Derong stated that on the 22nd and 23rd, moisture will slightly increase. It will still be mostly clear to cloudy everywhere and relatively hot during the day, with occasional localized brief showers in mountainous areas in the afternoon. Early on the 24th, a front will move south, and from north to south, it will turn to localized showers or thunderstorms. On the 25th, still affected by the front, the rainfall area will expand, and all regions will have localized showers or thunderstorms. Temperatures will drop on the 24th and 25th, and northern Taiwan will turn cool.
Wu Derong pointed out that on the 26th and 27th, the front will move away, the weather will be stable, and temperatures will rebound. On the 28th, another front will move in, and the weather will change again. Various models are still continuously adjusting towards the end of the period, and continued observation is needed.
Wu Derong mentioned that the latest CWA data shows that the 4th mild typhoon, "Sinlaku," is accelerating northeastward over the sea southeast of Japan and continuing to weaken; it poses no threat to either Taiwan or Japan. (Editor: Zhang Mingkun) 1150419