The Northeastern provinces today also started to have local heat with the highest temperature of over 35 degrees Celsius. In Hanoi, the highest temperature of the day is up to 33 degrees Celsius, it is cloudy but the air is still hot. , the temperature increases rapidly in about 12-16 hours. The heat wave in the North is likely to last until April 25. Immediately after that, the area received 2 consecutive cold air waves. On April 26-28, the weather in Hanoi and the Northern provinces turned cold with large-scale thunderstorms. Photo: Duy Hieu. Specifically, the meteorological agency said early next week, a wave of cold air appears compressing the low pressure trench will cause showers and thunderstorms on a large scale in the North and North Central provinces. On April 26-28, the weather turned cool, but accompanied by extreme thunderstorms. On April 29-30, another cold air appeared, combined with high wind convergence, continued to cause moderate rain, heavy rain for the two areas above. Experts warn that on small rivers and streams in the northern mountainous region, a flood is likely to occur with flood amplitude up to 1-3 m. Flash floods and landslides are likely to occur in the mountainous provinces of the Northwest and North Vietnam. Thus, on the occasion of the holidays April 30 to May 1, the weather in the North is likely to turn badly. It is cold, some places turn cold, accompanied by thunderstorms. According to the forecast page Accuweather , in Hanoi, the lowest recorded temperature in the coming cold wave is 25 degrees Celsius. It will be chilly, with showers and thunderstorms continuously on April 26-28. After that, the rain fell. In Ho Chi Minh City and the Southern provinces, local thunderstorms still appear, focusing on the afternoon and evening. In the last 10 days of April, the Central Highlands and the South had many days of showers and thunderstorms. People need to be on the lookout for cyclones, lightning, hail and strong winds. Meanwhile, the water level upstream of the Mekong River continues to rise with the tide. The meteorological agency said saline intrusion in the Mekong Delta increased gradually and is likely to reach its highest level in the last days of April. On April 23, many places in the Northwest recorded a popular temperature of 35-38 degrees Celsius. The hot sun extended to most of this area and spread down the central provinces. The highest temperature observed during the day is 40 degrees Celsius in Muong La (Son La).

Illustration. Detailed forecast for regions across the country on April 23: Ha Noi capital: Sunny day. Highest temperature 31-34 degrees; the lowest 24-27 degrees Celsius. North West: Sunny day, the Northwest area has hot sun. The highest temperature is 32-35 degrees Celsius, the Northwest is 34-37 degrees; lowest 23-26 degrees Celsius, Northwest 19-22 degrees Celsius. North East: Sunny day, rainy night in some places. The highest temperature is 31-34 degrees, some places are over 34 degrees C; 24-27 degrees C lowest, some mountainous areas below 24 degrees C. Provinces and cities from Thanh Hoa to Thua Thien Hue: On a sunny day, some places are hot, the northern mountainous area is hot and hot. The highest temperature is 32-35 degrees Celsius, the Northern mountainous region is 34-37 degrees C, some places are over 38 degrees; the lowest 24-27 degrees Celsius. Provinces and cities from Da Nang to Binh Thuan: Sunny day, somewhere hot; in the evening there are scattered showers and thunderstorms, local with moderate rain and heavy rain. During a thunderstorm, there is a possibility of whirlwinds, lightning and strong winds. The highest temperature is 31-34 degrees C, some places are over 35 degrees C; the lowest 24-27 degrees Celsius. Highlands region: There are showers and thunderstorms in some places. During a thunderstorm, there is a possibility of whirlwinds, lightning, hail and strong winds. The highest temperature is 29-32 degrees Celsius, some places are over 32 degrees Celsius; lowest 20-23 degrees Celsius. Southern region: There are showers and thunderstorms in some places. During a thunderstorm, there is a possibility of whirlwinds, lightning, hail and strong winds. Highest temperature 31-34 degrees C; the lowest is 24-27 degrees Celsius. In Ho Chi Minh City it is 32 degrees C and Can Tho 33 degrees C.

On March 26, the maximum UV index in the provinces and cities from the Central to the South reached a very high level of harm. Artwork: Thanh Vu / TTXVN Forecast, at 12 o’clock on March 26, Hue city (Thua Thien – Hue) has UV index of 9.6, Da Nang city has index of 9.9, Hoi An city (Quang Nam) has index. 9.7, Nha Trang City (Khanh Hoa) has 9.1, Ho Chi Minh City and Can Tho City both have 8.0, and Ca Mau City (Ca Mau) has 9.8. From March 27-29, the cities of Ha Long (Quang Ninh), Hai Phong and Hanoi have mainly UV indexes reaching the threshold of high risk of harm (July 6), while cities in the In the Central Central region to the South, the UV index reached the threshold of very high harm risk (9-11). On the scale of the UV index, 3-5 is average, 6-7 is high, 8-10 is very high, above 10.5 is exceptionally high, very dangerous. UV rays can penetrate clouds and windows, if the skin is exposed to direct sunlight for 25 minutes when the UV index is at a very high threshold, it will cause burns. UV rays are essentially thermal radiation that is harmful to the human body. UV rays are most affected by direct contact with the skin and eye surfaces, causing serious long-term problems. In the eyes, regular exposure to UV rays can lead to corneal inflammation, red eye pain, cataracts, and retinal damage. Skin, if constantly exposed to the sun without protection, UV rays will attack the dermis, making the skin darker (the phenomenon of tanning). In addition, intense sunlight causes the skin to rapidly age, create wrinkles, damage and even lead to skin cancer. When walking on the street, people can use anti-UV glasses to protect their eyes, avoiding the harmful effects of UV rays to important parts of the eye such as the cornea, lens and retina. The World Health Organization (WHO) assesses UV rays appear at all times of the day and operate independently whether it’s rainy or sunny or shady. The most intense time of UV rays is from 10 hours to 14 hours a day. During this time, people should minimize outdoor travel and when necessary measures to prevent UV rays are required. To prevent UV damage, health experts recommend that people wear eye protection sunglasses, choose lenses that are sun-resistant, UV absorption from 99-100% will protect Best for the eyes and surrounding skin. Along with that, people should supplement with fresh fruit rich in vitamin C, which helps to limit the harmful effects from ultraviolet rays; Use sunscreen regularly every time you go out, even when it’s cloudy.