According to the National Center for Hydro-Meteorological Forecasting, currently (October 17), in the north, a part of cold air is moving south.
According to Mr. Nguyen Van Huong - Head of Weather Forecasting Department, National Center for Hydro-Meteorological Forecasting, in the early morning of October 19, cold air will affect the northeastern part of the North.
On the day and night of October 19, the Northeast region will have the lowest temperature of about 21 - 24 degrees Celsius, in high mountainous areas it will be below 20 degrees Celsius. The average temperature will be 25 - 27 degrees Celsius, in mountainous areas it will be below 25 degrees Celsius.
"From October 20 to 22, the cold air will be strengthened and affect other places in the Northeast and North Central regions, some places in the Northwest and Central Central regions. The temperature will decrease further" - Mr. Huong said.
The meteorological agency said that due to the influence of cold air, in the Northeast region, there will be scattered showers and thunderstorms in some places. On land, the wind will shift to the northeast level 2 - 3, coastal areas level 3 - 4.
"From the evening and night of October 19, the weather in the North will turn cool; from the night of October 20, the night and morning will be cold, the mountainous areas will be cold. The lowest temperature during this period in the Northern Delta is generally 19 - 21 degrees Celsius, in mountainous and midland areas 17 - 19 degrees Celsius, in high mountainous areas below 16 degrees Celsius" - Mr. Huong added.
The Hanoi area is forecast to have scattered rain, showers and thunderstorms; from the night of October 19, the weather will turn cool, from the night of October 20 and the morning will be cold, the lowest temperature will generally be 19 - 21 degrees Celsius.
"Due to the influence of cold air, from the evening and night of October 19, the North and Central Central regions will have rain, moderate rain and thunderstorms, with some places in the South having heavy rain" - Mr. Huong warned of heavy rain due to cold air.
The meteorological agency noted that thunderstorms accompanied by tornadoes, lightning, hail and strong gusts of wind can affect agricultural production, break trees, damage houses, traffic works and infrastructure.
Heavy rain is likely to cause flooding in low-lying areas, flash floods on small rivers and streams, landslides in steep slopes; heavy rain in a short period of time can cause flooding in urban areas and industrial parks. Strong winds and large waves at sea are likely to affect the operation of ships and other activities. The cold weather at night and in the morning can affect people's health.
Regarding the sea weather, from October 19, the northern East Sea area will have strong northeast winds of level 6, gusting to level 7 - 8, rough seas; in the eastern sea area, the wind will gradually increase to level 6-7, near the storm center, level 8, gusting to level 10, waves 2.5 - 4.5 m high, rough seas. From the evening and night of October 19, in the Gulf of Tonkin, the northeast wind will gradually increase to level 6, gusting to level 7 - 8, rough seas, waves 1.5 - 2.5 m high.
