Frontal Systems and Northeast Monsoon to Bring Cooling and Rain to Northern and Eastern Taiwan from April 15

The Central Weather Administration (CWA) announced on April 13 that temperatures will remain high and hot on April 14. Starting April 15, two weak frontal systems will pass, followed by the strengthening of the Northeast Monsoon over the weekend. This will cause temperatures in northern and eastern Taiwan to gradually decrease in a stepped manner, bringing localized brief showers. Other regions will remain muggy and hot. CWA forecaster Huang En-hong stated that the first frontal system will pass quickly on April 15, bringing localized brief showers to areas north of Taoyuan and the northeast, and scattered brief showers to Hsinchu-Miaoli, Hualien, and Taitung. On April 16, moisture will decrease, and rain will be limited to localized brief showers along the Keelung North Coast and northeastern regions, with scattered brief showers in mountainous areas in the afternoon. The second frontal system will pass on April 17, with a similar rain distribution. On April 18, the Northeast Monsoon will strengthen, and its influence on April 19 will bring more moisture, resulting in localized brief showers in northern and eastern Taiwan, the Hengchun Peninsula, and mountainous areas of central and southern Taiwan. Regarding temperatures, the highest temperature on April 13 was 36.6°C in Nanxi District, Tainan City, and 35.9°C in Neipu Township, Pingtung County. April 14 is expected to be the hottest day of the week, with southern and southeastern regions potentially experiencing local temperatures above 36°C. General high temperatures will be around 30-33°C. Subsequently, temperatures in northern and eastern Taiwan will gradually decrease: 27-29°C from April 15-17, and 25-27°C on April 18-19. Low temperatures throughout the week will be around 21-23°C, with northern and Yilan-Hualien regions seeing a slight drop to 20-21°C from the evening of April 18 to the morning of April 19 due to the Northeast Monsoon. Forecaster Huang En-hong also mentioned that Super Typhoon Sinlaku was located approximately 370 km southeast of Guam, or 3060 km southeast of Eluanbi, on the afternoon of April 13. It is currently at its peak intensity and is expected to move north-northeast to northeast starting April 16. Sinlaku is far from Taiwan and will not affect the island. Warnings include localized fog or low clouds affecting visibility in Kinmen and Matsu on April 14 and 15, and in northern regions from the evening of April 14 to the morning of April 15. From April 16, long waves are expected along the Keelung North Coast, eastern Taiwan (including Green Island and Orchid Island), and the Hengchun Peninsula.