Traditional Culture Encyclopedia - Weather forecast - What does the thunder and lightning in October of the lunar calendar portend?
What does the thunder and lightning in October of the lunar calendar portend?
In fact, 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 in winter, sometimes the temperature is high and the warm and humid air flow is strong. When there is occasional strong cold air going south in the north, the warm and humid air is forced to rise, and the convection intensifies, forming thunderstorm clouds, producing lightning, rain and snow weather, which is particularly strong, and can also form hail, which will produce the weather phenomenon of "thunder in winter".
The ancients said that it thundered in October of the lunar calendar.
The ancients classified thunder in solar terms as spring thunder, so the thunder that appeared in the first month was classified as "winter thunder" The folk proverb "It thunders and snows in winter" means that thunder in winter is a harbinger of snowstorm. And thunder when it snows is "thunder and snow". There are also folk proverbs about thunder and snow in winter, such as "thunder and snow in the first month, rain in February, water shortage in March, and seedling festival in April" and "thunder and drought in the first month, 180 days (that is, 180 days)".
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