According to the National Center for Hydro-Meteorological Forecasting, in the afternoon of September 9, the cold air mass continued to move southward. In the past 24 hours, the North has had showers and thunderstorms in some places, the temperature at 1 pm was commonly 31-34 degrees C.
Forecast near morning and morning of September 10, cold air will affect the mountainous areas of the Northeast region, then affect other places in the Northeast region, North Central region and some places in the Northwest region.
On land, wind turns Northeast level 2-3, coastal area level 3. From September 10, the Northeast and North Central regions will turn cool.
During this cold air wave, the lowest temperature in the North and North Central regions is commonly 21-24 degrees C, in the high mountainous areas of the North, some places below 19 degrees C. Especially during the day and night of September 10-11, the average temperature in the Northeast and North Central regions is commonly 24-26 degrees C, in the mountainous areas, some places below 23 degrees C.
In Hanoi, from September 10th, the weather will be rainy, showers and scattered thunderstorms, with locally heavy rain; the weather will turn cool.
From the evening and night of September 9 to the night of September 10, the Northern region will have scattered showers and thunderstorms, with locally heavy rain. From September 10-11, the area from Thanh Hoa to Hue City will have moderate to heavy rain and scattered thunderstorms, with locally very heavy rain.
In thunderstorms, people need to be wary of tornadoes, lightning, hail and strong gusts of wind. These phenomena can affect agricultural production, causing trees to fall, damage to houses, traffic works and infrastructure.
Heavy rain and localized heavy rain are also likely to cause flash floods on small rivers and streams, landslides on slopes and flooding in low-lying areas.
At sea, from September 10, in the Gulf of Tonkin, the wind will shift to Northeast direction with strong winds of level 4-5. From the night of September 10, the Gulf of Tonkin and the northern sea area of the Northern East Sea will have strong Northeast winds of level 6, gusts of level 7-8; waves 2.0-3.0m high, rough seas.
Strong winds, gusts of wind and large waves are likely to affect the operation of ships and other activities at sea.
People and tourists going out should bring umbrellas and raincoats. Avoid moving and operating outdoors when it rains heavily to prevent strong winds and thunderstorms that are dangerous.
