Tomorrow's Weather: Typhoon Noul to Form! Taiwan Faces 'Four Consecutive Days of Heavy Rain' Until This Day

The Central Weather Administration and the meteorological fan page 'Weather Risk' indicate that a southwesterly airflow will continue to dominate the atmospheric pattern around Taiwan over the next week. Influenced by the Pacific high-pressure system, moisture levels will remain high during the first half of the period (from the 17th to the 20th). Southern regions should remain alert for localized brief showers or thunderstorms, while northern areas including Greater Taipei, northeastern Taiwan, and northern-central regions must guard against afternoon thunderstorms. Additionally, a tropical depression is currently active over the sea surface and is expected to develop into the year's 12th typhoon, 'Noul (Hongxia),' as early as the 17th. However, it is forecast to weaken rapidly afterward, with no direct impact expected on Taiwan.

According to the weekly weather forecast, from the 17th to the 20th, the southwesterly flow will bring abundant moisture. In southern regions, there is a chance of scattered brief showers or thunderstorms throughout the day, especially in coastal areas during the early morning to mid-morning hours due to land-breeze convergence effects. Other areas will generally see partly cloudy to sunny skies, but afternoon convective development will trigger localized thunderstorms in northern-central, northeastern Taiwan, and mountainous regions. Greater Taipei and northeastern areas should pay particular attention to heavier rainfall. Meteorological experts warn that afternoon rains in central and southern mountainous areas and northern regions may occasionally extend into the evening, urging the public to carry rain gear and remain cautious when traveling outdoors or into mountainous areas.

Temperatures across Taiwan are expected to range between 33°C and 36°C. Due to terrain and the subsidence effect of the southwesterly winds, extreme heat of 36°C to 38°C is possible in inland mountainous areas of central and southern Taiwan, the Greater Taipei Basin, and parts of Hualien and Taitung. With high heat indices and intense UV radiation, the 'Weather Risk' page advises avoiding prolonged outdoor activities and consistently replenishing fluids to prevent heatstroke.

Typhoon Noul (Hongxia) is expected to form as early as Friday, but is forecast to weaken into a regular low-pressure system by the 18th, posing no direct weather disruption to Taiwan. Looking ahead, moisture levels will gradually decrease starting Tuesday (21st). From the 22nd to the 23rd, as the Pacific high-pressure system strengthens moderately, the chance of rain will further decline, and the scope of afternoon thunderstorms will shrink. However, 'Weather Risk' also warns that a new tropical disturbance may gradually develop over the waters east of the Philippines in the latter half of next week. Whether this will affect moisture levels near Taiwan remains subject to ongoing meteorological forecast updates.