Meteorological proverbs about clouds

First, get up early and leave, and the dog died at noon.

It means that if there are broken clouds in the morning, they will dissipate and it will be very hot at noon. The principle is that the sun rises in the morning and the ground temperature rises, which leads to the gradual increase of the temperature near the ground, which will evaporate the water, fog and moisture on the ground. These water vapor will rise and then form stratus clouds. Because of its low height, this stratus cloud seems to move quickly, which will form a situation of "floating clouds walking".

The formation of this stratus cloud is related to temperature. With the sun's rays, the temperature rises, and the stratus will disappear continuously. Finally, it will form a blue sky scene. Without the refraction of clouds, the sunlight will be very strong, so it will be very hot at noon, so hot that even dogs will stick out their tongues to dissipate heat.

Second, I am afraid of the south cloud in the early stage and the north cloud in the later stage.

If it is cloudy in the south in the morning and cloudy in the north at night, it will rain in the future. These two phenomena are precursors of rain.

Third, look at the southeast early and the northwest late.

The air in the atmosphere also moves with the earth from west to east. Looking at the northwest at night, if there are dark clouds rolling in the northwest sky, it means that precipitation will move into the local area in the future and the weather will turn bad. If the weather in the northwest is fine, the weather will improve in the future.

Get up in the morning to see the southeast. If the weather in the east is sunny, it means that the bad weather will pass and the weather will get better in the future. If the weather in the east is bad, it is likely to get worse as the weather in the south develops northward.

Fourth, the red clouds are rising. I advise you not to travel far.

In the morning, the sun rises in the east. If there is too much water vapor in the atmosphere, some blue light, blue light and purple light in sunlight are scattered by the atmosphere, only red light, orange light and yellow light penetrate the atmosphere, and the sky is dyed red and orange, turning into red clouds. The appearance of red clouds in the morning indicates that clouds and rain are coming in the west.

5. After midnight rain and sunset, walk in the clouds.

When a warm front cloud system moves down from the western horizon in the evening, it will appear the phenomenon of "walking in the sunset glow". Warm front cloud system may bring nimbostratus and other high-level clouds or rain clouds. So "walking in the sunset glow" indicates that it will rain.

In addition, in the evening, the cumulus near the western horizon will also develop under the action of local heat, which will make the cloud head expand to the horizon and also cause the phenomenon of "walking in the clouds at sunset". When this cloud develops into a cumulonimbus cloud and moves to the local area with the airflow from the west, it can also make the local area rain at night.

National Weather Service-Proverbs of Observing the Sky from Clouds