Natural handwritten newspaper content

First, look at the wind and measure the sky.

The weather must first have water vapor, which is transported by the wind. "The east wind sends moisture, and the west wind is dry; The south wind is warm and the north wind is cold. " Wind is an obvious omen of weather change.

"The south wind blows to the end, and the north wind returns" is the change of wind direction before and after the cold air passes. Before the cold air went south to reach the local area, it was southerly due to the influence of the warm air mass. As soon as the cold air arrives, it becomes the north wind. Before and after the wind changed, the weather turned cloudy and rainy.

"Northwest wind, the sky is locked, the rain clears up", blowing northwest wind means that the local area has been controlled by dry and cold air mass, indicating that the weather will clear up.

"Clouds pass through clouds, and it's raining" and "the sky will change against the wind", which shows that the wind directions in the upper and lower layers of the atmosphere are inconsistent, which is easy to cause convection in the air and produce convective weather such as thunderstorms.

The weather reflected by the wind direction is different in different seasons. "There is easterly rain all three seasons of the year, only in summer" and "the ancestor of easterly rain" indicate that easterly wind will turn to rain in 1 ~ 2 days, while easterly wind in summer will blow the airflow with low sea temperature to the land, which plays a role in regulating the temperature and is not easy to rain, especially thunderstorms.