What are the signs of thunder and lightning in snowy days?

Thundering on snowy days indicates that people will freeze to death if the grain is not harvested, which is a sign of catastrophe.

As the saying goes, "When it thunders and snows, people eat iron" and "When it thunders and snows, ten cowpeas and nine pens are empty", so it is a bad omen to thunder in snowy days, which belongs to extreme weather, not only will affect the next year's harvest, but also in winter, when it thunders, the warm and humid air is very active, the cold air is also very strong, and the weather is cold and snowy, even cows may freeze to death.

This strange natural phenomenon indicates that there will be a poor harvest or even no harvest in the coming year, and people will have no food to eat.

The cause of thunder

Thunder is a natural phenomenon. When it rains, some clouds in the sky are positive and some are negative. When two kinds of clouds meet, they will emit lightning and a lot of heat, which will make the surrounding air heat and expand. Instantly heated and expanded air will push the surrounding air and produce strong explosion vibration. This is thunder.

Lightning is a discharge phenomenon in thunderstorm clouds. Thunderstorm clouds generally have two conditions, sufficient water vapor and strong convection. In winter, because the air is cold and dry, the solar radiation is weak, and convection is not easy to form in the air, so lightning is rare. But sometimes when the temperature is high in winter, it will form thunderstorm clouds, leading to lightning and rain and snow.

Convection is particularly strong, and it can also form hail, which will produce the weather phenomenon of "thunder in winter". Knowing these reasons, it is not surprising that it thunders in winter.