What is the relationship between high-altitude wind and weather system?

Different temperatures in the air will cause different winds at high altitude. This kind of high altitude wind caused by different temperatures is called thermal wind. People can infer the temperature distribution from the thermal wind. For example, in the northern hemisphere, people will find that the temperature on the left side is lower than that on the right side with their backs to the wind direction. Clockwise thermal wind appears in one area, mostly in high temperature area; Anti-clockwise thermal wind appears, mostly in low temperature area. In this way, we can judge the temperature distribution of the upper and lower air according to the distribution of thermal wind at different heights, so as to judge whether the gas layer is very stable and whether there will be thunderstorms.

In addition, the wind at a certain height can indicate the moving direction and speed of the weather system. This height is called the guiding layer. Finding the guiding layer is very helpful for forecasting weather changes.

In short, high-altitude winds can reflect many weather conditions. Therefore, when forecasting the weather, we should use the data of high-altitude winds. Of course, it is not enough to judge the future weather only by the high-altitude wind. We should also make a comprehensive analysis of the distribution of temperature, pressure, weather phenomena and wind in the upper air in order to make more accurate weather forecast.