TAIPEI, Taiwan ( July 23, 2025) — Chia Hsing-hsing, director of Taiwan Integrated Disaster Prevention Engineering Technology Consultants, issued a weather update warning of potential typhoon activity forming within the next few days, citing an active low-pressure zone in the Philippines and South China Sea region.
According to Chia’s update shared via his social media platforms, including Facebook and YouTube channel “Hsin Hsing Chia”, the region has been under the influence of a monsoon trough since July 18—an area commonly referred to as a “typhoon nest.” This environment is now showing signs of spawning up to three typhoons, two of which could potentially impact Taiwan.
Typhoon Fansigao and Its Outer Effects on Taiwan
Earlier this morning, Tropical Depression TD10 intensified and was officially named Typhoon Francisco. This system is expected to move toward the Ryukyu Islands. Though its core rainfall is concentrated in the northeast quadrant, Taiwan is forecast to experience indirect effects from its outer circulation over the next two days.
Chia forecasted brief localized showers for northern Taiwan, particularly in Taoyuan and Yilan, starting tomorrow. In the afternoons, areas in Tainan and surrounding mountains could also experience short-term rainfall. By Friday, the weather bureau expects isolated showers from Changhua northward, as well as scattered afternoon rain across the island.
Two Other Weather Disturbances Under Watch
Aside from Francisco, Chia is monitoring two other weather disturbances:
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Tropical Disturbance 98W: Expected to intensify into a typhoon between July 24 and 25, but it is projected to move northeastward and remain far from Taiwan, posing no direct threat.
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Tropical Disturbance 99W: Currently located northeast of Luzon, Philippines, this system may also develop into a typhoon by today or tomorrow. It is likely to move southward and affect Luzon Island, bringing noticeable wind and rain. While it is expected to weaken after its interaction with land, Chia emphasized the need to monitor this system closely due to forecast uncertainties beyond a five-day period.
Rainy Days Ahead: July 26 to August 1
In the extended forecast, Chia noted a persistent low-pressure belt with strong southwesterly winds will influence the region from July 28 to August 1. During this period, the western half of Taiwan may experience localized showers overnight into the morning, followed by afternoon rains across various regions. Notably, areas south of Miaoli face a high probability of heavy localized rainfall.
On July 26, areas from Hsinchu to Tainan are expected to see occasional showers, while July 27 could bring scattered short-term rains in Hsinchu, Yilan, Hualien, and Taitung.
Monitoring Recommended
With multiple systems forming and evolving rapidly, Chia urged the public to stay alert and monitor updates from Taiwan’s Central Weather Administration (CWA) and local media outlets. “Forecast models can shift quickly, especially beyond the five-day range,” he warned.
