What does a slight cold, thunder and rain mean in winter?

There is often lightning in summer and autumn, but not in winter. The reason is that lightning must be standardized. One is to have enough water vapor, that is, to have a certain air humidity.

The first is to have strong convection of cold and warm air. In summer, the solar radiation source is obvious, which is very easy to produce lightning weather. In winter, the temperature is relatively low, the gas is relatively stable, and it is not easy to generate lightning. First of all, lightning is actually the charging and discharging state in thunderstorm clouds.

Thunderstorm clouds generally have two standards, sufficient water vapor and strong convection. In winter, because the gas is cold and dry, the solar radiation source is poor, and thermal convection is not easy to occur in the air, so lightning is rare. But in winter, sometimes the temperature is higher and the warm and humid air mass is stronger. When there is occasional strong cold air going south in the northern region, warm and humid gases have to rise, and thermal convection intensifies, resulting in thunderstorm clouds, lightning, rain and snow, especially thermal convection, and hail, which will be the weather conditions of "winter thunder".

But it also thunders in winter. The reason is that some areas are not cold in winter, and some areas are sometimes not cold in winter, which will also cause the driving force of weak cold air to rise! When the air humidity is high, it will also cause lightning weather! For example, in winter here in Canada, lightning weather often occurs!

Some time ago, everyone said that the winter of 202 1 is not cold, but it is undoubtedly a warm winter! In recent days, it happened to rain and snow in the local area, and the air humidity was high, which caused lightning weather in winter. So thunder in winter is also a weather phenomenon! In warm winter, the air index is not very good. The common people say that they can't stand the plague, and animals and people get sick easily. Didn't you report how many people have a fever and a cold in some areas? ! In this warm winter weather, when it comes to rain and snow, the temperature drops suddenly, and it is hot and cold, so it is easy to have a fever and catch a cold! This is also the reason of course but!

Therefore, this kind of thunder in winter reminds everyone to pay attention to heat and cold protection, pay attention to antifreeze and warmth, and also need to care about the life and death of livestock immediately, and do a good job in antifreeze and warmth and epidemic prevention immediately!