What will happen to the weather when the cold wave comes?

The outbreak of cold wave weather has different characteristics in different regional environments: in the northwest desert and loess plateau, it is characterized by less wind and snow, which is easy to cause sandstorm weather; In Inner Mongolia grassland, it is windy, snowy and cold weather; In North China and Huanghuai areas, cold waves are often accompanied by snow. In the northeast, it is characterized by more violent winds and more snow, and the snowfall is the highest in the country; Jiangnan is often accompanied by freezing rain.

Windy weather caused by cold wave weather. Cold wave and gale involve a wide range, including Inner Mongolia, Gansu, Ningxia, northwestern Shaanxi, northwestern Shanxi, Hebei, northern Henan, Heilongjiang, Jilin, Liaoning and other places in northern China, and cold wave and gale can also occur from the south of Huaihe River to the middle of South China Sea.

Cold waves and strong winds are mainly northerly winds, and the wind force is generally 5 ~ 6. When the cold air is strong or the ground low pressure develops strongly, the wind force can reach 7 ~ 8, and the instantaneous wind force will be even greater.

Extended data:

The difference between cold wave and cold wave:

1, cold wave

Cold wave is a common disastrous weather in China, which occurs frequently and has a wide range of activities. A cold wave, as its name implies, is a surge of cold air like a tide.

But not all cold air attacks are called cold waves. Generally, after cold air attacks a place, if the temperature in those places can drop by more than 10℃ in one day (24 hours), and the lowest temperature in that day is below 5℃, we call this cold air a cold wave. However, due to the influence of geographical environment and climatic conditions, the cold wave standards are also different.

2. Cold current

The water on the ocean surface flows slowly and regularly in a certain direction at a huge scale and relatively stable speed. This is the so-called ocean current, also called ocean current. Ocean currents can be divided into warm currents and cold currents according to their nature. Any flowing ocean current whose seawater temperature is higher than the sea area it passes through is called warm current, and generally the ocean current flowing from low latitude to high latitude belongs to warm current;

Any flowing ocean current whose seawater temperature is lower than the passing sea area is called cold current. Generally, the ocean current flowing from high latitude to low latitude belongs to cold current. The east-west ocean current is generally warm, only west wind drift in the southern hemisphere, affected by the Antarctic continent and sea ice floes, has a low seawater temperature and belongs to the nature of cold current.