What does the weather forecast need to mention? ask the way

Weather changes are caused by changes in the weather system. Common weather systems include frontal system, high pressure (anticyclone) and low pressure (cyclone) system. Fronts generally bring precipitation, cooling, strong winds and other weather; And under the control of high pressure, how sunny the weather is; Controlled by low pressure, it rains continuously.

The principle of weather forecast is to predict the movement and change of weather system, and then judge the weather change in the affected area, which generally includes rain or shine, temperature, wind, disaster weather and so on.

In the picture, A is in front of the cold front. In the future, the temperature will drop, the air pressure will rise, and there may be rain and snow. B Behind the cold front, the wind and waves are heavy, but the weather will clear up and the wind will weaken in the future. The weather in c will not change much, and it will still be mainly sunny and dry; The situation in area D is similar to that in area A. Before the cold front, the weather and temperature will drop and the air pressure will rise in the future, and there may be rain and snow.

I hope it helps you.