Many monitoring stations recorded historic heat and thunderstorm values.
According to information from the National Center for Hydro-Meteorological Forecasting, from May 20 to now, the whole country has recorded many record numbers of both heat and thunderstorms.
Workers have to work hard in the scorching heat. Photo: Tuan Anh/VNA
Accordingly, on the afternoon of May 30, the low pressure area over the Hoang Sa archipelago strengthened into a tropical depression. By the afternoon of May 31, the tropical depression had strengthened into a storm, and this was the first storm in the East Sea in 2024. By the morning of June 1, after making landfall in the southern region of Guangdong province (China), storm No. 1 weakened into a tropical depression. By the afternoon of the same day, it had weakened into a low pressure area and gradually dissipated.
Over the past month, there have been many thunderstorms, tornadoes and hailstorms across the country, most concentrated in the northern provinces. However, in the central and southern regions, there have been a number of thunderstorms and tornadoes that have caused significant damage.
During this period, in the Northern and Central regions, there were 2 heat waves, severe heat on May 26-30 and June 11-20; in which, the Hoa Binh region, the Northern Delta and Thanh Hoa to Phu Yen had severe heat, some places were especially severe with the highest daily temperature commonly from 37-40 degrees Celsius, some places over 40 degrees Celsius. In the Central Highlands region, heat only appeared locally. In the Southern region, heat was widespread on May 22; May 24-27 and June 12-14, but the intensity of heat gradually decreased.
During this period, many meteorological stations across the country recorded the highest daily temperature value exceeding the historical value. The highest daily temperature exceeding the historical value in the period of May 2024 was recorded in Quynh Luu (Nghe An) at 40.3 degrees Celsius, Pham Ri (Binh Thuan) at 37.7 degrees Celsius.
The highest daily temperature exceeding the historical value in the period of June 2024 is A Luoi (Thua Thien Hue) 36.5 degrees Celsius, Son Hoa (Phu Yen) 40.2 degrees, exceeding the historical value recorded in 41 years, Tuy Hoa (Phu Yen) 40 degrees Celsius, Truong Sa (Khanh Hoa) 35.4 degrees Celsius, Phan Thiet (Binh Thuan) 37.9 degrees Celsius, Nha Be (HCMC) 37 degrees Celsius, Ba Tri (Ben Tre) 36.5 degrees Celsius...
The average temperature in the Northern region and Thanh Hoa is generally 0.5-1.0 degrees Celsius higher than the average of many years in the same period; the remaining regions are generally 1.0-2.0 degrees Celsius higher, in some places over 2.0 degrees Celsius higher than the average of many years in the same period.
Rainfall in the Northern region has been showery and thunderstormy for many days. In the North and Central Central regions, there have been scattered showers and thunderstorms for many days, including widespread moderate and heavy rain on May 31; from June 4-11 in Thanh Hoa, there was widespread moderate and heavy rain and thunderstorms. The South Central region has scattered showers and thunderstorms on May 20-21, June 6-10 and June 19, with some areas experiencing moderate and heavy rain.
The Central Highlands region continuously had scattered showers and thunderstorms, with some areas having moderate and heavy rain (temporarily interrupted from June 11-13). The Southern region had showers and thunderstorms for many days, including widespread moderate and heavy rain on May 21, 31 and June 16 (Figure 2b). During this period, some places had total daily rainfall exceeding the historical value for the same period in May and June.
La Nina appears from July, hot weather, storm season will be very complicated
Mr. Hoang Phuc Lam - Deputy Director of the National Center for Hydro-Meteorological Forecasting said that currently, the ENSO phenomenon is in a neutral phase. It is forecasted that from July to September 2024, ENSO is likely to transition to La Nina state with a probability of 65-75%. From now until September 2024, there is a possibility of about 5-7 storms/tropical depressions appearing in the East Sea; of which 2-3 will make landfall (the average number of storms/tropical depressions in the East Sea during this period is 6-7, the average number of storms/tropical depressions making landfall in Vietnam is about 3). Be on guard for the possibility of storms/tropical depressions forming right in the East Sea area.
(Illustration from Internet)
From July to September, dangerous weather phenomena such as thunderstorms, tornadoes, lightning and strong gusts of wind continue to occur nationwide. In the Northern region, heat waves will continue to occur until August, mainly concentrated in July. In the Central region, heat waves will continue to occur until September, mainly concentrated in July and August. Heat waves and severe heat waves are likely to occur more frequently than the average of many years in the same period. Drought in the Central region is likely to last until August 2024.
The rainy season in the Central region is likely to occur at a similar time to the average of many years (around the end of August and the first half of September). In the Central Highlands and the South, the southwest monsoon tends to be stronger than average.
Storms, tropical depressions and the southwest monsoon are likely to cause strong winds and large waves that affect activities in the East Sea. Heat waves will affect daily life and production activities (especially in the second half of June and July 2024 in the North and Central regions, the heat wave may be more severe). In addition, heavy rain, thunderstorms, tornadoes and lightning are likely to negatively affect production activities and community life in affected areas.
Mr. Hoang Phuc Lam, Deputy Director of the National Center for Hydro-Meteorological Forecasting. (Photo: National Center for Hydro-Meteorological Forecasting)
Looking further from October to December, Dr. Hoang Phuc Lam said that during this period, the ENSO phenomenon is forecast to continue to be in La Nina state with a probability of about 80-90%.
There is a possibility of about 04-06 storms/tropical depressions appearing in the East Sea, of which about 2-3 will make landfall (the average number of storms/tropical depressions in the East Sea during this period is 4-5, the average number of storms/tropical depressions making landfall in Vietnam over the years is about 2). Be on guard against the possibility of storms/tropical depressions forming right in the East Sea area.
Cold air begins to strengthen from around October. Tropical storms/depressions and the Northeast monsoon are likely to cause strong winds and large waves that affect activities in the East Sea. In addition, heavy rain, whirlwinds, and lightning can negatively affect production activities and public health.
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