How to understand the weather forecast of turning north to south or south to north?

The central and eastern China has a typical marine monsoon climate, because it faces the world's largest ocean with its back to the world's largest continent. In addition, it is also controlled by the humid and warm southeast monsoon from the Pacific Ocean in summer and the dry and cold northwest monsoon from Siberia in winter.

Then:

Two winds from different directions produce a wind surface at the intersection, and the place where the wind surface is located will be controlled by the more "powerful" side. In our country's view, if you are on the windward side, there will be "north to south" and "south to north".

So:

1 When the spring and summer seasons change in China, the wind in X-Berea becomes weaker, and the southeast wind in the Pacific Ocean becomes stronger, usually from north to south, and then the air is humid and the temperature rises, often accompanied by precipitation. Pacific winds send X-Berea winds back to Russia from low latitudes to high latitudes.

When the summer and autumn seasons change in China, the wind in X-Berea becomes stronger and the Pacific monsoon weakens, which usually leads to "south to north". Then the air dries and the temperature drops. The X-Berea wind regained control of our country from high latitude to low latitude and led us into the cold winter.

In addition:

In the middle and lower reaches of the Yangtze River in China, the plum rains in June and July every year are also caused by two airflow PK here to a certain extent, which is difficult to distinguish. The wind surface has been moving back and forth from north to south here, and it is impossible to continue northward. After July, when the Pacific Wind completely won, successfully went north and controlled the whole of China, we ushered in a hot summer day.

Simply put:

North turns south, the temperature rises, and there may be precipitation. Please take an umbrella.

From south to north, the temperature drops, so pay attention to adding clothes.