Harm caused by strong convective weather

Strong convective weather occurs in convective cloud system or single convective cloud block, which belongs to small and medium-scale weather system in meteorology. The horizontal scale of this weather is generally within 200 kilometers, and some are only a few kilometers. This kind of weather is extremely destructive. It is a weather with short duration and strong destructive power in meteorological disasters. Worldwide, it is listed as the fourth most disastrous weather after tropical cyclones, earthquakes and floods.

Severe convective weather disasters can generally be divided into wind disasters, waterlogging disasters and hail disasters. When severe convective weather occurs, several disasters often occur at the same time, which has a great impact on the national economy and people's livelihood and agricultural production. Strong wind is one of the most significant meteorological elements of squall line, tornado and thunderstorm. Although the horizontal scale of the squall line is small, strong wind and rain disasters will occur within its influence range, which can cause trees to fall, houses to overturn, debris to fly, people and animals to be injured, and crops to fall. Because all kinds of strong convective weather have their own seasons and characteristics, agricultural production is outdoor work, arranged according to seasons, so the harm of strong convective weather to various crops in agricultural production is different. The above floods, strong winds and hail are the main hazards that affect agricultural production in severe convective weather disasters. The direct harm of strong convective weather to agricultural production is the destruction of crops by external forces, and the indirect harm is that waterlogging induces and spreads pests and diseases, resulting in crop yield reduction or even crop failure.

With the improvement of people's living standards and the development of economic construction, the losses caused by strong convective weather are more serious. Severe convective weather disasters are closely related to the type, influence range and duration of severe convective weather.