Taiwan issues heavy rain alerts for 8 counties; weather remains unstable, moisture to decrease from Tuesday

Taiwan is experiencing unstable weather conditions, with eight cities and counties under heavy rain advisories. The Central Weather Administration (CWA) attributes the unsettled weather to a front lingering offshore and persistent southwest winds. These conditions are expected to bring scattered showers and thunderstorms across the island, with a particular risk of heavy rainfall, potentially even torrential downpours, in the central and southern regions. Northern and eastern areas will also see some rain.

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The front is still on the northern sea surface, and the southwest wind continues to affect it, making the weather unstable everywhere.

Temperatures will be moderate, with lows around 24-26 degrees Celsius and daytime highs reaching 27-31 degrees Celsius in western and eastern parts of the island. Air quality is generally good, with some areas rated as "normal."

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There are likely to be scattered showers or thunderstorms in the western half, Yilan area, and outlying islands, with localized brief showers in eastern Hualien and Taitung.

The weather is forecast to improve starting Tuesday. As the front gradually moves away and the southwest winds lessen, moisture levels will decrease, and temperatures will rise. While central and southern Taiwan may still see some showers and thunderstorms on Tuesday and Wednesday, eastern and northern areas are expected to be mostly cloudy to sunny. By Thursday, high pressure is predicted to build, leading to more stable and hotter conditions across the island, with a chance of localized afternoon thunderstorms in the north and mountainous areas.

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The weather will become more stable and feel hotter; most areas will be cloudy to sunny, with localized brief thunderstorms in the afternoon in central and northern Taiwan, Yilan, and other mountainous areas.