In the late afternoon and night of May 2nd, thunderstorms, tornadoes, and hailstorms occurred in Dien Bien, Lai Chau, Lao Cai, Tuyen Quang, Phu Tho, Thai Nguyen, and Hanoi provinces and cities. Previously, from March to now, many northern and central provinces have continuously recorded hailstorms and thunderstorms causing significant damage.
According to the National Center for Hydro-Meteorological Forecasting, due to the impact of cold air, it is forecast that in the late afternoon and night of May 3, the Northern region and Thanh Hoa will have rain, moderate rain and scattered thunderstorms, with locally heavy to very heavy rain.
From the evening of May 3rd to the morning of May 4th, the area from Nghe An to Hue city will have scattered showers and thunderstorms, with locally heavy rain.
The meteorological agency continues to warn that during thunderstorms, there is a high possibility of tornadoes, hail and strong gusts of wind.
According to Dr. Truong Ba Kien - Deputy Director of the Center for Meteorology and Climate Research, Institute of Meteorology, Hydrology, Environment and Marine Science, the hailstorms in recent times are not unusual phenomena. The appearance of hail at this time is consistent with the meteorological laws of the transitional season. However, in the context of climate change, the extreme nature of this phenomenon tends to increase.
In inter-season conditions, especially when late-season cold air intensifies interaction with low-lying hot and humid air masses, the two air masses have different natures, increasing atmospheric instability, convergence and vertical wind interruption.
Therefore, it helps maintain a strong upward flow and extend the duration of the grain in the super-cold region, thereby increasing the efficiency of accretion and the ability to form ice rain" - Mr. Kien analyzed.
According to this meteorological researcher, usually, from March to May is the period when most ice rain appears in the year, due to the characteristic of seasonal transition, the dispute between two different gas masses. The northern mountainous region, the western mountainous region of the central provinces and cities from Thanh Hoa inwards to Hue city - where there are very high terrain conditions and atmospheric instability, increases the risk of ice rain.
However, it should be noted that ice rain is a phenomenon that can only warn of dangers and cannot be accurately predicted.
The risk of ice rain during the transitional season may last until the first half of May, when there is still a conflict between gas masses. By the end of May, small floods often appear, marking a shift to a different weather pattern" - Mr. Kien assessed.
Notable recommendations:
When there is a risk of thunderstorms, tornadoes, hail and strong gusts of wind, people need to closely monitor warning bulletins and limit going out when the weather turns thunderstormy.
If you are outdoors, you need to quickly find a safe shelter in a solid house, avoid standing under big trees, power poles, billboards or temporary structures.
When it rains heavily, you should stay indoors, close the doors tightly, and stay away from glass doors to limit breakage and injury.
For strong gusts of wind, it is necessary to reinforce the roof, reinforce items that are easily blown away by the wind, and not stay near areas at risk of collapse.
In addition, turn off electrical devices when there is lightning, limit the use of phones outdoors to reduce the risk of being struck by lightning.
