This morning, April 11, according to the National Center for Hydro-Meteorological Forecasting, the time when cold air affects the weather in the North and Central regions is approaching. This is a cold air mass during the changing seasons, so there will be characteristics to note.
From noon and afternoon of April 12, this cold air mass will affect the Northeast region, then affect the Northwest, North Central and North Central regions.
Inland, the wind will shift to northeast level 3, coastal areas level 4 - 5, some places will gust above level 6.
From the night of April 12, the weather in the North and North Central regions will turn cold, and some mountainous areas in the North will be cold.
From the night of April 13 to 14, the night and morning will be cold. Cold weather is likely to affect livestock and poultry; growth and development of crops.
The Northern region will have the lowest temperature of about 18 - 21 degrees Celsius on the day and night of April 12, with some mountainous areas below 16 degrees Celsius. The average temperature is about 23 - 25 degrees Celsius, especially in the Northwest region, about 25 - 27 degrees Celsius.
Day and night on April 13, the lowest temperature is about 16 - 19 degrees Celsius, in high mountainous areas it is below 13 degrees Celsius. The average temperature is about 20 - 22 degrees Celsius.
The Hanoi area will turn cold from the night of April 12. From the night of April 13 to 14, the night and morning will be cold. The lowest temperature in this cold air mass is generally 17 - 19 degrees Celsius.
In the North Central region on the day and night of April 12, the lowest temperature is forecast to be generally 19 - 22 degrees Celsius. The average temperature is about 24 - 26 degrees Celsius.
Day and night on April 13, the lowest temperature is generally 17 - 20 degrees Celsius, the average temperature is about 21 - 23 degrees Celsius.
Regarding another notable situation, from early morning on April 12, the Northeast will have scattered showers and thunderstorms, and on the night of April 12, the rain will gradually decrease.
On the day and night of April 12, the Northwest and Thanh Hoa to Quang Binh regions will have moderate rain, heavy rain and thunderstorms, with some places having very heavy rain. In addition, in the evening and night of April 12, the area from Quang Tri to Quang Ngai will have scattered showers and thunderstorms, with some places having heavy rain.
During thunderstorms, there is a possibility of tornadoes, lightning, hail and strong gusts of wind. Warning of the risk of local heavy rain with high intensity (rainfall greater than 80mm within 6 hours).
At sea, from the afternoon of April 12, the Gulf of Tonkin winds will gradually increase to level 6, sometimes level 7, gusting to level 8 - 9, rough seas, waves 1.5 - 2.5m high.
From the night of April 12, the area from Quang Tri to Quang Ngai will gradually increase to level 5, sometimes level 6, gusting to level 7 - 8, rough seas, waves from 1.5 - 2.5m high.
Strong winds and large waves at sea are likely to affect the operation of ships and other activities.
