According to the National Center for Hydro-Meteorological Forecasting, from October 20 to 22, the cold air will be strengthened, so the area of influence will expand to the Northern Delta and the Northwest. The lowest temperature in the Northern Delta and Thanh Hoa is generally 19 - 21 degrees Celsius, the mountainous and midland areas of the North are 17 - 19 degrees Celsius, and in some places in the high mountains it is below 16 degrees Celsius.
Forecast for Hanoi on October 19th, the temperature will drop to 24 - 33 degrees Celsius, by October 20th, the highest temperature will be 30 degrees Celsius and drop to 27 degrees Celsius from the middle of next week, the lowest at night will be 21 degrees Celsius, down 4 - 5 degrees Celsius compared to the previous day. High points above 1,500 m such as Sa Pa (Lao Cai) next weekend will fluctuate 12 - 16 degrees Celsius.
Due to cold air combined with the circulation of storm Fengshen, from October 19, the northern East Sea will have strong northeast winds of level 6, gusting to level 7-8; in the eastern sea, the winds will gradually increase to level 6-8, gusting to level 10, with waves 2.5-4.5 m high. From the evening and night of October 20, the wind in the Gulf of Tonkin will gradually increase to level 6, gusting to level 7-8, with waves 1.5-3 m high.
The meteorological agency noted that the early cold air of the season may be accompanied by tornadoes, lightning, hail and strong gusts of wind that could affect agricultural production, cause trees to fall, damage houses, traffic works and infrastructure.
Heavy rains can cause flooding in low-lying areas; flash floods in small rivers and streams, landslides on steep slopes; heavy rains in a short period of time can cause flooding in urban areas and industrial zones. Cold weather at night and in the morning can affect health.
PVSource: https://baohaiphong.vn/khong-khi-lanh-tran-xuong-mien-bac-nhet-do-giam-4-5-do-c-523983.html
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