In May 2024, the average temperature nationwide will be about 1.0-2.0 degrees Celsius higher than the average of many years, and in some places 2.0 degrees Celsius higher. In June 2024, it will be 0.5-1.5 degrees Celsius higher than the average of the same period. From July to September 2024, the average temperature nationwide will be about 0.5-1.0 degrees Celsius higher than the average of many years.
From May to July 2024, heat waves will continue to appear in the Northern, North Central, Central Central and Central Highlands regions. The number of heat waves in common areas is forecast to be higher than the average, in the Northwest region about 4-5 waves, in the Northeast region 3-4 waves and the Northern Delta from 6-8 waves; the area from Thanh Hoa to Thua Thien Hue from 7-9 waves, from Da Nang to Binh Thuan from 4-6 waves and in the Central Highlands region from 3-4 waves.
The rainy season in the Northwest region begins in late April and early May 2024; other regions in the North are likely to begin in mid-May 2024. The rainy season in the Central Highlands begins in the first half of May 2024.
Total rainfall in common areas is approximately the same as the average, except for the Central region, which tends to be higher than the average during the main months of the rainy season (from September to November 2024).
In the Northern region, in May 2024, there were no signs of minor flooding in the Northern region. From May to September 2024, the flow to large reservoirs on the Da River will be 30-40% lower than the average, the flow to Thac Ba Lake on the Chay River and to Tuyen Quang Lake on the Gam River will likely be 20-30% lower than the average.
In the Central, Central Highlands and Southern regions, from May to September 2024, the flow on rivers in Thanh Hoa, Ta Trach River (Thua Thien Hue), Tra Khuc River (Quang Ngai), rivers in Binh Dinh, and northern Binh Thuan is approximately equal to and 10-30% higher than the average; other rivers in the Central and Central Highlands regions are 15-55% lower than the average. In particular, the flow on Ben Hai River (Quang Tri), Ba River (Phu Yen) and La Nga River (Southern Binh Thuan) is 65-80% lower than the average.
The drought in the northern Central Highlands will continue until the first half of May 2024, then it is likely to gradually decrease, especially in the southern Central Highlands, the drought may end from mid-May 2024; the northern provinces of the Central Central and South Central regions will continue to be affected by drought from May to July 2024, then it will gradually decrease.
In the summer of 2024, the heat waves in the North and Central regions are likely to be more frequent and more severe than average, with the possibility of many records for absolute maximum temperatures. There is a high risk of thunderstorms, tornadoes, and hail.
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