Temperatures in northern Taiwan turned noticeably cooler Saturday as seasonal northeasterly winds strengthened, the Central Weather Bureau (CWB) said.
Daytime highs in northern regions are forecast to register between 25 degrees and 28 degrees Celsius, dropping to 22 degrees to 23 degrees at night, the bureau said.
For the rest of Taiwan, temperatures will remain relatively high, reaching 29 degrees to 32 degrees during the day before falling to 24 degrees to 25 degrees at night, according to the CWB.
Moisture carried by northeasterly winds could cause heavy rainfall in parts of Yilan, Keelung and the mountainous areas of greater Taipei Saturday, the bureau warned, advising residents to be on alert for sudden downpours, thunder strikes and landslides.
Meanwhile, data from the Environmental Protection Administration (EPA) showed that air quality was poor in southern Taiwan Saturday due to a lack of wind to disperse atmospheric pollutants.
As of 10 a.m. Saturday, the readings for fine particulate matter smaller than 2.5 micrometers (PM2.5) had reached the highest level 10 in seven districts in Tainan, Kaohsiung and Pingtung.
Level 9 was recorded in eight districts in Yunlin, Chiayi, Tainan, Kaohsiung and Pingtung, while level 8 was seen in two districts in Chiayi.
According to the EPA, level-10 PM2.5 concentrations exceed 71 micrograms per cubic meter and are considered extremely high, but measurements above level 7 are deemed severe enough to cause tangible discomfort and health problems.
Given the air quality, the elderly and those with chronic lung or heart diseases should avoid prolonged or strenuous outdoor physical activity, the EPA advised.
Source: Focus Taiwan News Channel