Taipei-Heavy rain is forecast for northern and northeastern Taiwan Saturday due to the current northeasterly wind system, according to the Central Weather Bureau (CWB).
The CWB issued an extremely heavy rain warning for Keelung, Taipei and New Taipei cities in northern Taiwan, and a heavy rain alert for Yilan in northeastern Taiwan Saturday.
According to the CWB, heavy rain means accumulated rainfall of more than 80mm in 24 hours or more than 40mm of rainfall in one hour, while extremely heavy rain refers to more than 200mm in 24 hours or accumulated rainfall or more than 100mm in three hours.
While central and southern Taiwan are not expected to see heavy downpours and will mostly enjoy cloudy to sunny skies during the day, sporadic showers are forecast in the mountainous areas, in particular in the afternoon, the CWB said.
Due to the rainfall, northern Taiwan is expected to stay relatively cool, with daytime temperatures forecast to range between 26-28 degrees Celsius and the mercury in Hsinchu likely to hit 29 degrees, the CWB said.
The stable weather conditions are expected to maintain temperature highs in central and southern Taiwan at 32-33 degrees, the CWB added.
In the early morning of Saturday, temperatures around Taiwan ranged between 23-25 degrees and are expected to fall during the night, the CWB said, warning people living in central and southern Taiwan to stay alert over a big day-night temperature gap of round 8 degrees.
The wind system is also expected to bring strong winds to the areas above Tainan, southeastern Taiwan, including Green Island and Orchid Island, the Hengchun Peninsula, as well as outlying Penghu, Kinmen and Matsu islands, the CWB said.
It urged people doing outdoor activities to take precautionary measures.
On Sunday, rainfall is likely to begin to fade and the weather will turn stable, the CWB said.
Meanwhile, the Environmental Protection Administration (EPA) said the air quality was good in northern Taiwan and Yilan, Hualien and Pingtung in the east, while air quality in Penghu was fair.
But due to the lack of wind to disperse atmospheric pollutants, the Air Quality Index (AQI) was flashing an "orange alert" in Yunlin, Chiayi, Tainan, Kaohsiung and Pingtung counties and cities in southern Taiwan, indicating unhealthy levels for sensitive groups, according to the EPA.
An orange warning was also issued for Matsu and Kinmen islands due to pollutants from China's coastal area, the EPA said.
Even worse, air quality in some other parts in central and southern Taiwan was unhealthy for the general public, with the AQI flashing a "red alert," the EPA's monitoring network showed.
Source: Focus Taiwan News Channel