According to the National Center for Hydro-Meteorological Forecasting, cold air has currently affected the North Central region and most of the Northwest. The Gulf of Tonkin has strong northeast winds of level 6, gusting to level 7.
On the day and night of May 25, the cold air will be strengthened, affecting other places in the Northwest and some places in the Central Central region. On land, strong northeast winds of level 2 - 3, coastal areas of level 3.
The North and North Central regions will be cool, the northern mountainous areas will be cold at night and early morning.
The lowest temperature is about 19 - 22 degrees Celsius, in mountainous areas it is below 19 degrees Celsius. The average temperature is about 24 - 26 degrees Celsius, in the Northwest region 25 - 27 degrees Celsius.
Day and night on May 26, the North and North Central regions will have the lowest temperature of about 20 - 23 degrees Celsius, mountainous areas below 20 degrees Celsius. The average temperature is about 25 - 27 degrees Celsius, especially in the Northwest region 26 - 28 degrees Celsius.
The Hanoi area is cool. The lowest temperature in this cold air mass is generally 20 - 22 degrees Celsius.
Regarding other notable weather conditions, the Ha Tinh - Quang Binh area will have rain, moderate rain, some places will have heavy rain and thunderstorms.
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 on steep slopes; heavy rain in a short period of time causing flooding in urban areas and industrial parks.
Regarding the weather at sea, the Gulf of Tonkin, the northern sea area of the North East Sea will have strong northeast winds of level 6, gusting to level 7, rough seas. Waves are 1-3m high. On the night of May 25, the wind gradually decreased.
Strong winds and gusts, large waves at sea are likely to affect the operation of ships and other activities at sea.