What do the symbols in the weather forecast mean?

The weather symbol * * * is divided into two forms, namely day and night.

Daytime weather symbol:

Night weather symbol:

Meteorological disaster early warning signal (hereinafter referred to as early warning signal) refers to the early warning information released to the public by the meteorological offices and stations affiliated to the competent meteorological departments at all levels. Early warning signals are composed of names, icons, standards and defense guidelines, which are divided into typhoon, rainstorm, blizzard, cold wave, gale, sandstorm, high temperature, drought, lightning, hail, frost, fog, haze, road icing and so on.

Meteorological disaster warning signals are generally divided into four grades (Ⅳ, Ⅳ, Ⅳ, Ⅳ, Ⅳ, Ⅳ, Ⅳ, Ⅳ, Ⅳ, Ⅳ, Ⅳ, Ⅳ, Ⅳ, Ⅳ, Ⅳ, respectively. At the same time, it is marked in Chinese and English, which is consistent with all national emergency disposal grades and colors.

Weather forecast (measurement) or meteorological forecast (measurement) is to use 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 have begun to predict the weather and arrange their work and life accordingly (such as agricultural production and military operations). Today's weather forecast mainly uses the collection of a large number of data (temperature, humidity, wind direction and speed, air pressure, etc. ), and then use the current 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. [ 1]?

The satellite cloud image of China Central Meteorological Observatory was taken from Fengyun-1 and other meteorological satellites. Using satellite cloud images for analysis can improve the accuracy of weather forecast. Weather forecast is usually divided into three types: short-term weather forecast (2 ~ 3 days), medium-term weather forecast (4 ~ 9 days) and long-term weather forecast (10 ~ 15 days or more). CCTV mainly broadcasts short-term weather forecast every day.

References:

Baidu encyclopedia entry weather forecast