Why does it sometimes thunder in winter?

There is no special sign of thunder in winter. Thunder is generally related to cold air, so keep warm.

Lightning weather mainly occurs in March-September, with the most in June-August in summer, and it thunders in autumn and winter, especially in winter.

In autumn and winter, controlled by continental cold air mass, the air is cold and dry, the solar radiation is weak, the air is not easy to form strong convection, and the probability of lightning is relatively small.

If the weather is hot and cold, the probability of thunder will increase in winter. Being rare doesn't mean it won't happen, and you have no vision at all. In meteorology, thunder is an understandable weather phenomenon all year round, but lightning is rare in autumn and winter.

As long as there are specific and suitable weather conditions, it can thunder at any time without any visual association.

Extended data:

Causes of lightning in winter

The occurrence of winter thunder is due to the confrontation between warm and humid air and cold air. There should be enough water vapor in the air to make warm and humid air rise, and the air should be able to generate strong convection up and down.

In autumn and winter, because the air is cold and dry, the solar radiation is weak, the air is not easy to form violent convection, and lightning rarely occurs. However, when the strong warm and humid air flows northward and the cold air is forced to rise, strong convection will also occur, and lightning will appear when it reaches a certain intensity.

When the warm and humid airflow meets strong cold air, the warm and humid air in the lower layer is forced to rise, resulting in strong convection, which creates conditions for the formation of lightning.

Baidu Encyclopedia-Dong Lei

Fenghuang. com-It thundered in Nanchang yesterday morning. Why does it still thunder in winter? Experts say that winter thunder is not a vision.