What do yellow warning, blue warning, red warning and orange warning mean?

The yellow, red and blue warning means the possible disaster degree of meteorological disasters.

China's early warning level is divided into four levels, which are red, orange, yellow and blue from high to low. The higher the level, the more serious the possible disasters caused by meteorological disasters. 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.

according to the degree of harm, urgency and development trend that meteorological disasters may cause, the grades are generally divided into four grades, namely, Grade IV (general), Grade III (heavier), Grade II (severe) and Grade I (particularly severe), which are indicated by blue, yellow, orange and red in turn and marked in Chinese and English. Meteorological disaster warning signal and prevention guide.