According to the National Center for Hydro-Meteorological Forecasting, this afternoon (April 10), the area from Nghe An to Hue City experienced intense and especially intense heat with temperatures at 13:00 commonly 37-39 degrees C, in some places above 39 degrees C such as: Quy Hop (Nghe An) 39.1 degrees C, Huong Khe (Ha Tinh) 39.4 degrees C,... Relative humidity at 13:00 commonly 35-45%.
The Northwest region, from Da Nang City to the east of Quang Ngai province, has hot and intense sunshine with temperatures at 1 PM commonly 35-37 degrees C, in some places above 37 degrees C such as: Phu Yen (Son La) 38.5 degrees C, Mai Chau (Hoa Binh) 38 degrees C. Relative humidity at 1 PM is commonly 40-45%.
According to Mr. Mai Van Khiem, Director of the National Center for Hydro-Meteorological Forecasting, Department of Hydro-Meteorological Forecasting, the cause of this hot spell is due to the influence of the hot low pressure area in the west combined with the impact of the strong foehn wind effect.
It is forecasted that the hot low pressure area in the west is still operating strongly, continuing to impact and cause a strong foehn wind effect in the central provinces, in the southern area of the subtropical high pressure (stable air mass) still covering the Central Highlands and the Southern provinces" - Mr. Khiem added.
The area from Thanh Hoa to Hue City from December 11 - 4, is forecast to have intense and especially intense heat with the highest temperature commonly 38-40 degrees C, in some places above 40 degrees C. The relative lowest humidity is commonly from 35-40%.
The Northwest region, Da Nang City and the east of provinces from Quang Ngai to Dak Lak have hot and intense heat with the highest temperature commonly 36-38 degrees C, in some places above 38 degrees C. The relative lowest humidity is commonly from 40-45%.
The Central Highlands and Southern regions are hot, with intense heat in some places with the highest temperature commonly 35-37 degrees C, in some places above 37 degrees C, the relative lowest humidity commonly from 45-50%. The Northeast region is locally hot with the highest daily temperature in some places above 35 degrees C.
According to the meteorological agency, hot weather in the above-mentioned areas is likely to continue in the coming days. From about the 14th - 15th, hot weather in the North, Central Highlands and Southern regions tends to gradually subside. From about the 16th - 17th of April, hot weather in the Central provinces tends to gradually subside.
Warning level of natural disaster risk due to hot weather is level 1; especially the area from Nghe An to Hue City is level 2.
The level of natural disaster risk due to hot weather in the Central region is determined to reach level 2 when the highest daily temperature is commonly from 37 - 39 degrees Celsius, lasting continuously from 2 - 3 days or more and occurring widely, usually from 2 provinces or more. At this level, hot weather has begun to clearly affect people's health, as well as production and living activities" - the Director of the meteorological agency analyzed.
In practice, the assessment also considers additional factors such as low humidity, foehn effect and the duration of the heat wave to determine the overall risk level.
Due to the influence of hot sun and intense heat, especially intense in some places combined with low humidity in the air, there is a high risk of fires and explosions in residential areas due to increased electricity demand and the risk of forest fires. In addition, hot sun can also cause dehydration, exhaustion, and heat stroke for the human body when exposed to high temperatures for a long time.
