165438+1October 1 ~ 3 early warning of heavy snow and rainstorm
Specifically, heavy snow or even blizzard is likely to occur in northern Xinjiang and northeastern Inner Mongolia, and small to medium snow or sleet will also occur in many areas including northern Tibet, southwestern Qinghai, western Gansu and northwestern Heilongjiang. In addition, there will be rainfall in the eastern Sichuan Basin, western Jianghan, Jianghuai, Jiangnan and Hainan Island, and there will even be heavy rain in the southeast of Hainan Island, accompanied by strong convective weather such as local short-term heavy precipitation and thunderstorms.
Rainfall is not the only thing that needs attention. The strong wind cooling is also an important feature brought by this cold wave. The north wind will sweep from north to south, resulting in 4 ~ 6 gale in Inner Mongolia, North China and Northeast China, which will lead to the temperature drop. In most areas, the temperature will drop by 4 ~ 6 degrees Celsius, and in some parts of the north, it may even drop by 8 ~ 10 degrees Celsius, and the temperature drop in Northeast China will be even greater.
Brief introduction of weather forecast
Weather forecast, also known as meteorological forecast (measurement), refers to the use of modern science and technology to predict the state of the earth's atmosphere in a certain place in the future. Since prehistoric times, human beings began to predict the weather to arrange their work and life accordingly (such as agricultural production, military operations, etc.). ).
Today's weather forecast is mainly based on the collection of a large number of data (temperature, humidity, wind direction and speed, air pressure, etc.). ), and then use the understanding of atmospheric processes (meteorology) to determine future air changes. Because of the chaos of the atmospheric process and the fact that science has not fully understood the atmospheric process today, there will always be some errors in the weather forecast.