Although it has only entered the 2nd widespread heat wave since the beginning of the season, many places have recorded temperatures above 40 degrees Celsius. Information about this heat wave and upcoming developments is awaited by people.
Mr. Mai Van Khiem, Director of the National Center for Hydro-Meteorological Forecasting, Department of Meteorology and Hydrology, has provided new assessments of this weather pattern.
Mr. Mai Van Khiem, please tell us the points recording the highest temperatures in the last 3 days and the reasons for this widespread heat wave?
- Due to the influence of the hot low pressure area in the west combined with the impact of the foehn wind effect operating strongly from April 3 in the Central region from Thanh Hoa to Da Nang city, the eastern part of Quang Ngai and Gia Lai provinces has experienced hot and intense heat on a large scale, with some places experiencing particularly intense heat.
The area of provinces from Nghe An to Quang Tri from April 6 to now (April 8) has experienced intense heat with the highest temperature of the day in some places above 41 degrees such as: Tay Hieu (Nghe An) 41.9 degrees; Con Cuong (Nghe An) 41.3 degrees;...
What is the forecast for hot weather in the coming days, will the intensity increase or not, sir?
- Forecast, currently 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 zone (stable air mass) still covering the Central Highlands and the Southern provinces.
Therefore, from January 9-13, the western part of the Northern region will be hot and intensely hot, with temperatures of 36-39 degrees Celsius, in some places above 39 degrees Celsius.
The eastern region of the Northern region on the 9th. 4 hot spells in the plains; from the 10th to the 13th. 4 widespread hot spells, the highest temperature in the day is commonly from 35-37 degrees C, in some places above 37 degrees C.
The Central region from Thanh Hoa to Da Nang city, the eastern part of Quang Ngai and Gia Lai provinces from September 9-14. 4 intense heat, with high temperatures commonly from 36-39 degrees C. Especially the area of provinces from Nghe An to Hue city is intense and especially intense with high temperatures commonly 39-40 degrees C, with some places above 41 degrees C.
The Central Highlands and Southern provinces from April 9-14 will continue to have widespread hot weather, with common temperatures of 35-37 degrees Celsius.
Sir, what warnings do you have when the hot weather is forecast to continue in the coming days and when is the hot weather forecast to decrease?
- Regarding the level of natural disaster risk due to hot weather in areas level 1; especially in provinces and cities from Nghe An to Hue city, the level of natural disaster risk due to hot weather 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 on a large scale, 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.
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.
Warning about the impact of prolonged hot weather and the hot and dry foehn wind effect caused by the low pressure area in the west, causing a high risk of fires and explosions in residential areas due to increased electricity demand and a high risk of forest fires. In addition, hot weather can also cause dehydration and exhaustion due to heat shock for the human body when exposed to high temperatures for a long time.
Note that the forecast temperature in hot weather bulletins and the actual perceived temperature outside can differ from 2-4 degrees Celsius, and may even be higher depending on the condition of the buffer surface such as concrete and asphalt roads.
From after April 14, hot weather forecasts in areas tend to gradually decrease.
Thank you very much, sir!
