Meteorological popular science tabloid handwritten newspaper

It refers to the continuous rainy weather from September to165438+10, in which the daily rainfall in five areas is greater than or equal to 0. 1 mm for more than five consecutive days. The western part of Guizhou Province is most affected by autumn rain, and the influence gradually decreases from west to east. Autumn cotton rain is very harmful to agriculture, from prolonging the maturity of rice and corn to lodging of crops and germination of autumn grain. Or it will make it difficult to plow and plant in autumn, which will affect sowing. Autumn cotton rain affects field production activities, leading to poor harvest; Those harvested in time cannot be threshed, aired and put into storage, and mildew will occur.

There are clouds hanging in the sky and it is raining.

A hook in the sky refers to a white cloud with one end hooked in the sky. This kind of cloud is usually generated in front of the front, which indicates that the front is coming and there may be rain in the future.

3, fish scales, no rain and no wind.

Fish-scale sky means that clouds in the sky are arranged in the sky like fish scales. In meteorology, such clouds are called cumulus clouds, and most of them are generated at low-pressure fronts. Generally speaking, if the low pressure moves northward in the next 24 hours, the sky will be unstable and the weather will turn bad, even if it doesn't rain, there will be wind.

4, dark clouds rise at sunset, listening to the rain in the middle of the night.

At sunset, dark clouds meet. This dark cloud is actually a low black cloud, indicating that the rain in the west, southwest and southeast moves quickly.

There are three fogs, but the light rain can't stop.

It has been foggy for several days, indicating that the local area is in the confrontation zone of cold and warm air. Warm air is full of water vapor, and cold air leads to cooling, which is an excellent condition for fog. The confrontation between cold and warm air often brings rainy weather.

6. The sunrise is a little red, and no rain is the wind.

It turns red at sunrise, indicating that there is a lot of water vapor in the air (sunlight scatters when it passes through water vapor, and only red light can reach our eyes). Such rich water vapor is usually caused by rainy weather, so it is a sign of rain.

7. 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 get worse. 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.

8, long sunny west wind and rain, long rain and sunny west wind

In the case of long sunny days, although there is warm and humid air from the ocean, it is not easy to rain if there is no cold air rising; If there is cold air from the northwest at this time and the warm and humid airflow rises, it is easy to form clouds and cause rainfall. If the northwest wind blows in the case of long rain, it will drive out the local warm and humid air, so the weather will clear up soon.

9. The stars blink, and the rain is not far away.

The twinkling stars in the summer night sky indicate that the atmosphere is disturbed violently, which indicates that there will be rain soon. Where do the stars come from? "When it started flashing, where did the wind and rain come from? If the stars are shining all over the sky, wind and rain may come at dawn.

10, aconite wind and white head rain

"Aconitum" and "Whitehead" refer to the cloud top colors of two kinds of clouds. Aconitum is a kind of cumulonimbus, and Whitehead is a kind of cumulonimbus. These two kinds of clouds often appear in summer. "Aconitum" cloud, with flat bottom and convex top, is mainly composed of water droplets. Water droplets in the cloud absorb and scatter some sunlight, making the bottom and top of the cloud look dark. The top of the "Whitehead" cloud rises. Due to the strong air convection, the vertical development is rapid, the clouds are getting higher and higher, and the cloud top diffusion is very vigorous. It soon occupied most of the sky. The cloud top is a structure of ice crystals, so it is white.