According to the National Center for Hydro-Meteorological Forecasting, currently, the cold air mass is still compressing and pushing a low pressure trough with its axis at about 24 - 26 degrees north latitude to move south. In the North, there are scattered showers and thunderstorms, the common temperature is 24 - 27 degrees C.
Around the night of April 28, this cold air mass will affect the Northeast region, then affect the North Central region, some places in the Northwest and Central Central regions. On land, the wind will turn northeast at level 2-3, coastal areas at level 3-4.
The Northern region from the evening of April 28 to the morning of April 29, is forecast to have rain, moderate rain and scattered thunderstorms, locally heavy to very heavy rain.
In the Northeast region, the weather turns cool. The lowest temperature in this cold air wave in the Northeast region is commonly from 20 - 23 degrees C, mountainous areas have places below 20 degrees C.
Hanoi area from the evening of April 28 to the morning of April 29 has showers and scattered thunderstorms, locally heavy rain; the weather turns cool. The lowest temperature in this cold air wave is commonly 21 - 23 degrees C.
The North Central region on the day and night of April 29, is forecast to have scattered showers and thunderstorms, with locally heavy rain.
North Central region turns cool. The lowest temperature in this cold air wave is commonly 21 - 24 degrees C.
The meteorological agency warns that thunderstorms are likely to occur with thunderstorms, hail and strong gusts of wind. Thunderstorms accompanied by thunderstorms, hail, hail and strong gusts of wind can affect agricultural production, causing trees to fall, damage to houses, traffic works, and infrastructure.
Localized heavy rain is likely to cause flash floods on small rivers and streams, landslides on slopes and flooding in low-lying areas.
At sea, from near dawn on April 29, in the north of the Gulf of Tonkin and the northern sea area of the northern east sea, the northeast wind will shift to level 5, sometimes level 6, gusting level 7, rough seas, waves 1.5-2.5m high.
Strong winds and gusts, large waves at sea are likely to affect the operation of ships and other activities.
