It is forecast that this year there will be about 10-13 storms operating in the South China Sea and half of them will affect the mainland. In particular, strong storms will occur in September to October.
According to the National Meteorological Agency, at present, the trend of temperature is gradually turning to a neutral state. With this development, the hurricane season this year is expected to come more wanted than every year, but need to be careful of strong storms; the rainy season can come early with extreme phenomena; risk occurs drought and local water shortage in Central and Central Highlands.
More information with VietnamPlus Electronic Newspaper reporter on the afternoon of April 15, Mr. Nguyen Van Huong, Head of Climate Forecast Department, National Hydrometeorological Forecast Center, said that from now until about May, it is unlikely to export storms and tropical depressions in the South China Sea. However, in the following months, storms and tropical depressions will begin to operate and increase in frequency, lasting until the end of 2021.
Specifically, in the period from June to July, storms and tropical depressions are likely to begin operating in the North East Sea and gradually increase the frequency, likely to affect the Northern region. and North Central region from August to September; affect provinces in Central and South Central from September to the end of this year.
“It is forecasted that this year there will be about 10-13 storms operating in the South China Sea, of which about half will affect the mainland. In which, strong storms will occur from September to October, “Huong said.
Also according to Mr. Huong, normally in the first half of the season (from June to September), tropical low pressure will concentrate in the North and the South China Sea, potentially affecting the North and North Central regions. ; in the second half of the season (from September to November), it will focus on the Middle and South East Sea, affecting the North Central Coast and returning to the South.
With the storm trend mentioned above, localities need to be careful of strong storms with complicated movements and cause strong winds at sea in months. stormy rainy season year 2021.
Regarding the trend of the rainy season, Mr. Huong said that this year’s rainy season is likely to come early in the Central Highlands and the South, from about the second half of April to the first half of May, thunderstorms and whirlwinds may occur. , hail, strong wind. In the last 6 months of 2021, rainfall tends to increase nationwide.
Illustration. (Source: VNA)
During the dry season months, the flow volume on most of the common rivers is approximately 15-40% lower than the average of many years in the same period, some rivers are 50% lower. Risk of drought and local water shortage in Central and Central Highlands.
In the flood season in 2021, the annual flood peak on the main rivers in the North, North Central region and Central Highlands is usually around 1-2 and above fluctuation 2; rivers in Yen Bai and Ninh Binh, from Quang Binh to Binh Thuan fluctuate 2-3, some rivers fluctuate 3.
The annual flood peak in the watershed of the Mekong River on Tien River in Tan Chau and Hau River in Chau Doc fluctuates 1-2, lower than the average flood peak of many years from 0.1-0.3m. In the dry season 2020-2021, salinity intrusion in the Mekong River Delta is at a high level but not as serious as the dry season in 2019-2020. Since May, saline intrusion in the Mekong Delta tends to decrease gradually.
The period of moderate and large floods in the North is likely to concentrate more in the second half of the flood season. On small rivers and streams, in the upstream areas, big floods, flash floods, and landslides are likely to occur; Inundation in cities and urban areas continues to be at risk from local heavy rains in the flood season months.
Before the weather trend mentioned above, the representative of Forecast Center Hydrometeorology The country said that the Ministry of Natural Resources and Environment will continue to direct hydro-meteorological forecasting and warning units, continuously monitoring, monitoring and updating daily on the website of the Ministry of Natural Resources. and Environment, General Department of Meteorology and Hydrology, soon provide detailed forecast information and warnings to functional agencies, media agencies and the people to prevent and avoid ../.
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