There has always been a saying among the people that "seeing the clouds and knowing the sky". Is this method really reliable?

In some cases, it is still reliable. Clouds are like signs of weather. What kind of clouds hang in the sky indicates what kind of weather will appear. Although radar observation and satellite observation have replaced manual observation today, and the significance of observing clouds is no longer as great as before, the methods summarized by the older generation always have some merits.

Don't underestimate a cloud in the sky. In the "families" of clouds, * * * is divided into 3 families, 10 genus and 29 categories. All kinds of clouds represent different weather phenomena, so they are called "weather signs". For thousands of years, according to the changes of cloud shape, direction, moving speed, thickness and color, the ancients summed up the rich experience of "knowing the sky by observing the clouds" and compiled these experiences into proverbs. There are many celestial phenomena hidden in the clouds, among which there are rhythms. We also use these "indigenous methods" to forecast the weather, such as "Fire clouds cover the fog, rain is coming", "Red clouds rise at sunrise, and you are advised not to go out", "There will be heavy rain in Huang Yun in the evening", "Yun Zheyue on August 15th, and it will rain and light the lantern festival next year" and so on.

Is it reliable to know the sky from the clouds? Liu E 'e, secretary general of Wuhan Meteorological Society, said that the generation and evolution of clouds are related to water vapor conditions and atmospheric movement. From the change of clouds, we can infer every move of water vapor and the movement of the atmosphere. Clouds are the cradle of the weather and can be used as a basis for forecasting the weather.

However, with the global warming and frequent extreme weather events, modern weather forecasting is far more than just "looking at the sky from the clouds". Li Ming, deputy director of Wuhan Meteorological Observatory, said that with the help of modern observation methods such as weather radar, satellites and sounding balloons, the movement of the atmosphere can be observed more clearly, so that a more prepared judgment can be made. "The accuracy of judging the weather by looking at the clouds is usually not higher than the conventional weather forecast."