Widespread heat wave covers the whole country, some places over 41 degrees Celsius

According to the National Center for Hydro-Meteorological Forecasting, on April 27, the Son La, Hoa Binh areas and from Thanh Hoa to Phu Yen will have severe and especially severe heat, with temperatures at 1 p.m. generally ranging from 38 to 40 degrees Celsius, with some places above 41 degrees Celsius such as: Yen Chau (Son La) 41.5 degrees Celsius, Tuong Duong (Nghe An) 41.6 degrees Celsius, Ba Don (Quang Binh) 41.6 degrees Celsius, Dong Ha (Quang Tri) 42.1 degrees Celsius, Ba To (Quang Ngai) 41.3 degrees Celsius... relative humidity at 1 p.m. is generally 30-35%.

The Northern and Southern regions have hot and extremely hot weather, some places are especially hot with temperatures at 1pm commonly ranging from 35 - 38 degrees Celsius, some places above 39 degrees Celsius such as: Pho Rang (Lao Cai) 38.8 degrees Celsius, Lang (Hanoi) 39.4 degrees Celsius, Phu Ly (Ha Nam) 40.6 degrees Celsius, Dong Phu (Binh Phuoc) 39.2 degrees Celsius...; relative humidity at 1pm commonly ranges from 40 - 45%.

The area from Khanh Hoa to Binh Thuan and the Central Highlands will have hot weather, some places will be extremely hot and especially hot with temperatures at 1pm generally ranging from 35 - 37 degrees Celsius, some places above 37 degrees Celsius; relative humidity at 1pm is generally 45 - 50%.

Forecast: From April 27 to 30, the Northwest region will have hot and extremely hot days, with some places experiencing extremely hot weather, especially in Son La and Hoa Binh; scattered showers and thunderstorms in the afternoon and evening and at night. From the night of April 30 to May 1, there will be scattered showers and thunderstorms in the afternoon and evening, with some places experiencing heavy rain; sunny days, with some places experiencing hot weather. The lowest temperature is 25 - 28 degrees Celsius, with some places experiencing below 24 degrees Celsius. The highest temperature is 35 - 38 degrees Celsius, with some places experiencing above 39 degrees Celsius; in Son La and Hoa Binh, it will be 38 - 41 degrees Celsius, with some places experiencing above 41 degrees Celsius; on May 1, it will be 32 - 35 degrees Celsius.

Northeast From April 27 to 30, hot and extremely hot days, some places especially extremely hot; showers and thunderstorms in some places in the evening and at night. From the night of April 30 to May 1, there is a possibility of scattered showers and thunderstorms in the evening and at night, the heat will decrease. The lowest temperature is 26 - 29 degrees Celsius. The highest temperature is 35 - 38 degrees Celsius, some places above 39 degrees Celsius; on May 1, it is from 32 - 34 degrees Celsius.

Hanoi area from April 27 to 30 will have hot and extremely hot days, with little chance of thunderstorms. From the night of April 30 to May 1, in the evening and at night, there will be a possibility of scattered showers and thunderstorms, and the heat will decrease. The lowest temperature is 26 - 29 degrees Celsius. The highest temperature is 36 - 39 degrees Celsius, with some places above 39 degrees Celsius; on May 1, it will be 32 - 35 degrees Celsius.

From Thanh Hoa to Phu Yen from April 27 to 30, the days will be extremely hot and especially hot; in the afternoon and evening there will be showers and thunderstorms in some places. From the night of April 30 to May 1, in the afternoon and evening there will be showers and thunderstorms in some places, especially in Thanh Hoa and Nghe An, there is a possibility of scattered showers and thunderstorms, locally heavy rain; the heat will likely decrease. The lowest temperature is 28 - 31 degrees Celsius; The highest temperature is 38 - 41 degrees Celsius, some places above 41 degrees Celsius; on May 1, in the North, it will be 32 - 35 degrees Celsius; in the South, it will be 35 - 38 degrees Celsius, some places above 38 degrees Celsius.

From April 27 to May 1, the area from Khanh Hoa to Binh Thuan will be hot and sunny, with some places experiencing severe heat; showers and thunderstorms in the evening and at night in some places. The lowest temperature is 26 - 29 degrees Celsius. The highest temperature is 34 - 37 degrees Celsius, with some places above 37 degrees Celsius.

The Central Highlands and the South from April 27 to May 1 will be hot and extremely hot during the day, with showers and thunderstorms in some places in the evening and at night. The lowest temperature: the Central Highlands 23 - 27 degrees Celsius; the South 27 - 30 degrees Celsius. The highest temperature is 35 - 38 degrees Celsius, with some places above 38 degrees Celsius.

Experts warn that heat and severe heat across the country will last until around April 30, and from May 1-2, heat across the country is likely to gradually decrease.

Due to the effects of intense and especially intense heat combined with low humidity, there is a risk of explosions and fires in residential areas due to increased demand for electricity and the risk of forest fires. In addition, heat can also cause dehydration, exhaustion, and heat stroke in the human body when exposed to high temperatures for a long time.

Note, the forecast temperature in the heat bulletin and the actual felt temperature outside can differ by 2 - 4 degrees Celsius, or even higher depending on the conditions of the surface such as concrete and asphalt.