According to the National Center for Hydro-Meteorological Forecasting, currently, cold air has affected some places in the Northeast region of the Northern region. In the Northern region, there is rain, moderate rain and scattered thunderstorms, locally heavy to very heavy rain; common temperature 24 - 27 degrees C.
In the late afternoon and night of May 3rd, this cold air mass will continue to affect other places in the North, North Central region, then affect some places in the Central Central region. On land, the wind will turn northeast at level 2-3, coastal areas at level 3-4.
The Northern and North Central regions will turn cool.
On the night of May 3rd and day of May 4th, the North has the lowest temperature of about 19 - 22 degrees C, mountainous areas in some places below 19 degrees C. The average temperature is about 23 - 25 degrees C, mountainous areas below 23 degrees C.
North Central region has the lowest temperature of about 21 - 24 degrees C; the average temperature is about 24 - 26 degrees C.
On the night of May 4 and day of May 5, the North has the lowest temperature of about 20 - 23 degrees C, mountainous areas in some places below 20 degrees C. The average temperature is about 24 - 26 degrees C, mountainous areas below 24 degrees C.
Hanoi area in the evening and night of May 3rd has rain, moderate rain and scattered thunderstorms, locally heavy to very heavy rain; cool weather. The lowest temperature is commonly 20 - 22 degrees C.
Regarding the development of rain due to cold air, in the late afternoon and night of May 3rd, the Northern region and Thanh Hoa will have moderate rain and scattered thunderstorms, rainfall of 10-30mm, locally heavy to very heavy rain over 70mm.
From the evening of May 3rd to the morning of May 4th, the area from Nghe An to Hue City will have scattered showers and thunderstorms, rainfall of 10-30mm, locally heavy rain over 50mm.
The meteorological agency warns that during thunderstorms, there is a high possibility of thunderstorms, hail and strong gusts of wind.
Rainstorms accompanied by tornadoes, lightning, hail and strong gusts of wind affect agricultural production, infrastructure and people's livelihoods. 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, in the north of the Gulf of Tonkin, the northeast wind turns strong at level 5, sometimes level 6, gusting at level 7, sea waves are 1.5 - 2.5m high, rough seas. From near dawn on May 4, the northeast sea area of the northern East Sea has strong northeast wind at level 6, gusting at level 7 - 8, sea waves are 2 - 3m high, rough seas. Strong winds at sea affect the operation of ships and boats.
