A strong cold wave will affect the weather in Zhejiang. What harm will the cold wave bring?

It is normal that the northern hemisphere is cold in winter. But in fact, the average temperature is similar every year. If the temperature drops sharply at the same time, it will form disastrous weather. In fact, strong cold wave is a kind of disastrous weather. Cold wave is a disastrous weather in winter. Once the cold wave comes, the cold air at high latitudes will invade the middle and low latitudes, and the temperature in these areas will drop sharply, which is obviously lower than the average temperature in the same period of the year. What harm will such a strong cold wave bring?

First: the temperature has dropped sharply and the body feels unwell.

The most obvious harm brought by the cold wave is the sharp cooling. Like our northern region, winter cold seems to have become the norm, with occasional cold waves, and it seems that we can't feel how cold it is. But for the small partners in the southern region, this is not the case. A friend in Shanghai said that the sudden drop in temperature a while ago made him unable to adapt. Not only are there not enough thick clothes to keep out the cold, but also there is no heating equipment. In cold temperatures, we can only rely on healthy bodies to keep warm.

Second: traffic safety is a big hidden danger.

When the cold wave strikes, it may be accompanied by bad weather such as rain, snow and strong winds. In this weather, traffic is a big problem. On our northeast side, every time we encounter this bad weather, the expressway will be closed, which seriously affects the transportation efficiency. Moreover, the safety of traffic travel can not be guaranteed, and the risk of car accidents will be greatly enhanced. Not only road traffic, but also sea and air traffic will be greatly affected.

Third: harm crops.

Some crops encounter a sudden cold wave, which may reduce or stop production, seriously affecting the agricultural income of that year. Almost every cold wave in history, crops will be affected to varying degrees.

The danger of cold wave is actually great, but fortunately, the current weather forecast is very accurate and the weather changes can be predicted in advance. Before the arrival of the cold wave, everyone can have enough time to prepare, which greatly reduces the harm of the cold wave.