Why is thunder in December of the lunar calendar an ominous sign?

The sentence' When it thunders in winter, the soldiers will see it, and when it thunders in December, the loess piles' means that if it thunders for so long in winter, it indicates that there will be a war, in which the soldiers mean war;

When it thunders in the twelfth lunar month, the loess pile means that when it thunders in the twelfth lunar month, it often means that someone is dead, and the loess pile refers to the grave dead. Therefore, people think that thunder in1February is a very bad phenomenon, which often indicates the occurrence of natural disasters or man-made disasters.

Extended data

Thundering in winter is only a rare natural phenomenon, which has nothing to do with numerology signs. The weather in winter is very cold, so the air is full of cold air, but if the weather is suddenly unusually warm,

Then there will be a warm air mass, a cold air mass and a warm air mass meet by chance, and then a thunderstorm cloud will form. In many cases, this thunderstorm cloud will form lightning phenomenon, which will become what we call thunder in winter, but this phenomenon is only a sign of climate warming.