According to the National Center for Hydro-Meteorological Forecasting, currently, in the north, there is a cold air mass moving southward. The Northern region has showers and thunderstorms in some places, the common temperature is 30 - 32 degrees C.
Around the night of April 28, the cold air mass will affect the Northeast region, then affect the North Central region, some places in the Northwest and Central Central regions. Wind turns northeast at level 2-3, coastal areas level 3-4.
The Northern region in 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. The weather will turn cool with the lowest temperature in the Northern region commonly 20 - 23 degrees C, mountainous areas in some 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 is commonly 22 - 24 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. The weather turns cool with the lowest common temperature of 21 - 24 degrees C.
The meteorological agency warns that in thunderstorms, there is a possibility of tornadoes, lightning, hail and strong gusts of wind. Warning level of natural disaster risk due to tornadoes, lightning, hail is level 1.
Rainstorms accompanied by tornadoes, lightning, hail and strong gusts of wind can affect agricultural production, causing trees to fall, damage to houses, traffic works, and infrastructure. Localized heavy rains are 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, the north of the Gulf of Tonkin and the northern sea area of the northern East Sea will have strong northeast winds of level 5, sometimes level 6, gusts of level 7. Sea waves are 1.5 - 2.5m high, rough seas. rough seas, dangerous for ships operating at sea.