The Bureau of Meteorology issued a special report on heavy rain, reminding that there will be local heavy rain or torrential rain on the north coast of Keelung on the 5th. There is a possibility of local heavy rain in Yilan (Toucheng), New Taipei (Xizhi) and the mountainous area of ​​Taipei City. Pay attention to landslides and falling rocks.

(taken from Central Weather Bureau)

[Reporter Chen Xinyu/Taipei Report] The weather in the north and south-central this week is different. The Central Meteorological Bureau stated that this wave of northeast monsoon will affect the north and continue to be cloudy and rainy for at least a week. The central and southern regions must pay attention to the large temperature difference between day and night. Heavy rain warnings are issued for the north coast of Keelung, heavy rain warnings for Xizhi in New Taipei City, and heavy rain warnings for mountainous areas in Taipei City.

The coldest time of this week is tonight and tomorrow morning. The average temperature in northern Taiwan is 16 to 17 degrees, and the local dip is 15 degrees. The low temperature in the central and southern parts is 18 to 20 degrees in the morning and evening.

After winter, the northeast monsoon moves southward in waves. Another wave of northeast monsoon is expected to strengthen on Friday this week, but it will not reach the standard of continental cold air mass.

Zhao Hong, a forecaster of the Central Meteorological Bureau, said that from 1951 to last year, the first wave of continental cold air masses (12°C<Taipei weather station≦14°C.) arrived on average on November 28th, but the continental cold air masses arrived before December 16th. They are all within the average range. The latest year was 1995, and there was no first wave of continental cold air mass until January 4.

The Bureau of Meteorology also pointed out on its official website that the analysis of the time of the first wave of continental cold air mass, strong continental cold air mass, or cold current affecting Taiwan from the winter of 1951/52 to the winter of 2019 shows that the arrival date tends to be later and later as the years increase.

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Zhao Mian said that tomorrow's weather will be similar to today's, and it will also be affected by the northeast monsoon. Wednesday and Thursday will be slightly warmer, and the northeast monsoon will weaken slightly. 19 degrees, the high temperature is about 21 to 24 degrees, there will be some short-term rains in Huadong and Greater Taipei areas, there will be a chance of local heavy rains on the north coast of Keelung, the northeast and the Greater Taipei Mountains, sporadic and short-term rains in the northern areas, and cloudy to sunny in the central and southern areas .

Tomorrow (Tuesday) the central region will be affected by mid-level water vapor, and there may be sporadic rain. In addition, there may be local fog or low clouds from Wednesday night to Friday morning, so pay attention to traffic.

The next wave of northeast monsoon is expected to affect from Friday to next Thursday, and the impact time is relatively long. The current forecast intensity is not as high as that of a continental cold air mass. However, there are still uncertainties in the forecast and continuous observation is required.

The Meteorological Bureau predicts that the weather in the north and northeast will be cooler, and other areas will be cooler in the morning and evening; there will be local short-term rain in the northern and eastern half, and cloudy to sunny in the central and southern regions.

In addition, tomorrow there may be long waves along the north coast of Keelung, the eastern half of Hanlan Island, Green Island, and the coast of Hengchun Peninsula. Coastal activities must be paid attention to.

The Bureau of Meteorology issued a special report on strong winds on land, reminding that the northeasterly winds are obviously stronger, and there are strong gusts of magnitude 9 to 10 in the north and eastern half of Tainan (including Green Island and Lanyu), the open coastal areas of the Hengchun Peninsula, Penghu, Kinmen, and Matsu , adjacent to the sea and has relatively strong wind and waves.

(taken from Central Weather Bureau)