According to the National Center for Hydro-Meteorological Forecasting, this morning (April 29), cold air has affected most of the Northeast region and some places in the Northwest region. In the North, there are showers and scattered thunderstorms, locally heavy to very heavy rain; common temperature 20 - 23 degrees C, mountainous areas in some places below 20 degrees C.
On April 29, cold air will affect other places in the Northern region, then affect the North Central region and some places in the Central Central region. On land, northeast winds will be strong at level 2-3, coastal areas level 3-4.
The Northeast and North Central regions are cool. From April 29 to the night of April 30, the lowest temperature in the Northeast region is commonly from 20 - 23 degrees C, mountainous areas in some places below 20 degrees C. The average temperature is about 24 - 26 degrees C.
The lowest temperature in the North Central region is commonly 21 - 24 degrees C, the average temperature is about 25 - 27 degrees C.
The area from Thanh Hoa to Hue City has scattered showers and thunderstorms, with locally heavy rain. In thunderstorms, there is a possibility of thunderstorms, hail and strong gusts of wind.
The meteorological agency warns that thunderstorms 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 rain may cause flash floods on small rivers and streams, landslides on slopes, and flooding in low-lying areas.
Hanoi area has rain in some places; cool weather. The lowest temperature in this cold air wave is commonly 21 - 23 degrees C.
At sea, in the north of the Gulf of Tonkin and the northern sea area of the northern East Sea, northeast winds will gradually strengthen to level 5, sometimes level 6, gusting to level 7, rough seas, waves 1.5 - 2.5m high.
Strong winds and gusts, and large waves at sea are likely to affect the operation of ships and other activities.