TAIPEI (CNA) – The weather in northern Taiwan is expected to be cool and wet Monday due to moisture-laden northeasterly winds, according to the Central Weather Bureau (CWB).
The mercury in the northern areas of the county will rise to no more than 17-19 degrees Celsius during the day and drop to around 15 degrees at night, while Hualien and Taitung on the east coast can expect daytime highs of 22-24 degrees, and central and southern Taiwan will see highs of 25-28 degrees, the bureau said.
It has issued an extremely heavy rain warning for Keelung and northeastern coastal areas, while a heavy rain alert was already in effect for mountainous areas of Taipei and New Taipei as well as Yilan, Orchid Island and Green Island.
According to the CWB, a heavy rain warning means accumulated rainfall of more than 80mm in 24 hours or more than 40mm in one hour, while extremely heavy rainfall is defined as more than 200mm in 24 hours or more than 100mm in three hours.
Central and southern Taiwan will see cloudy skies on Monday but not much rain, the CWB said.
On Tuesday, the northeasterly winds will weaken, which means daytime temperatures around Taiwan will rise slightly until a cold air system arrives Thursday, sending the mercury down to 14 degrees in the greater Taipei area, the CWB forecast.
The cool wet weather is expected to continue into Jan. 1, it said. Meanwhile the air quality in northern and central Taiwan, Yilan, Hualien, Taitung and the outlying Matsu and Penghu islands was good to fair on Monday, according to the Environmental Protection Agency (EPA).
However, 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, Pingtung and Kinmen, indicating unhealthy levels for sensitive groups, according to the EPA.
In some areas of Kaohsiung and Pingtung, the AQI was flashing a “red alert,” signaling unhealthy air quality for the general public, the EPA said.
By Weng Tsui-ping, Chen Wei-ting and Frances Huang