What are the proverbs for judging the weather based on the characteristics of clouds?

“There are clouds in the sky and rain on the ground”: Meteorologically, cirrus clouds are called cirrus clouds. They generally appear in front of warm fronts and low pressures. The appearance of cirrus clouds indicates that fronts or low pressure are coming. , is the harbinger of rain. However, when clouds appear after rain or in winter, there will be continuous sunny days or frosts, so there are also "clouds dissipate, sunny days will be dry" and "clouds in winter will cause dust". Proverb.

“Fort clouds, raindrops”: Fort clouds refer to fort-shaped altocumulus clouds or fort-shaped stratocumulus clouds. They often appear in front of low-pressure troughs, indicating that the air is unstable, usually every 8 to 10 hours. There is a thunderstorm coming.

"Clouds crossing clouds, rain dripping": Clouds crossing clouds means that the upper and lower clouds move in different directions, that is to say, the wind direction at the height of the clouds is inconsistent. It often occurs near fronts or low pressure, so It indicates rain. Sometimes the direction of clouds is opposite to that of the wind on the ground. There is a saying that "when clouds move against the wind, the sky will change".

"Jiangzhu crosses the river and heavy rain pours": Jiangzhu refers to the clouds under the rain layer clouds. Broken nimbus, the appearance of this kind of cloud, indicates that there is enough water vapor in the nimbus clouds and heavy rain is coming. Sometimes broken nimbus is blown by strong winds to a cloudless place, and at night you can see clouds like river pigs floating across the Milky Way. ", is also a precursor to rain.

"Cotton cloud, rain is coming soon": Cotton cloud refers to flocculent altocumulus clouds. The appearance of such clouds indicates that the middle atmosphere is very unstable. If there is sufficient water vapor in the air and rising If it moves, cumulonimbus clouds will form, and thunderstorms will come.

"The gray cloth hangs in the sky, and the rain will continue continuously": Gray cloth clouds refer to nimbus clouds, which are mostly formed by the lowering and thickening of altostratus clouds. , the range is very large and thick, and there is sufficient water vapor in the clouds, often producing continuous precipitation.

“When clouds go east, cars and horses pass; when clouds go south, water swells; when clouds go west, they are covered with raincoats; Clouds moving to the north are good for drying wheat.": Predict cloudiness and sunshine based on the direction of cloud movement. Clouds moving east and north indicate fine weather; clouds moving west and south indicate the coming of rain. Cloud movement Direction, generally indicates the wind direction at its height. This proverb explains the distribution of clouds in different parts of the low pressure. It is suitable for low and fast-moving clouds that are densely distributed throughout the sky.