From blue and yellow to orange and red, what do you think of the colors of these weather warning signals?

Article 3 of China's "Measures for the Issuance and Dissemination of Meteorological Disaster Warning Signals" clearly stipulates that the warning signal levels are generally divided into four levels according to the degree of harm, urgency and development trend that may be caused by meteorological disasters: IV (general), III (heavier), II (serious) and I (particularly serious), which are indicated by blue, yellow, orange and red in turn and marked in Chinese and English. Therefore, different colors represent different meteorological disasters and their degree of harm, urgency and development. We analyze why different colors are used from the following points:

1. blue: blue generally means quiet, meticulous, calm and rational, so the "4-level general" level of the early warning signal is blue, indicating that the meteorological disaster at this time is the lowest and there is not much harm.

Yellow: Yellow is the most sensitive color in people's eyes, so it means warning, oppression and solemnity. Therefore, the "3-level heavier" level of the early warning signal is indicated in yellow, indicating that the meteorological disaster at this time needs to be paid attention to, and when it reaches a more serious level, it is necessary to always be prepared for disaster prevention and relief.

3. Orange: orange is usually called yellow-red, because it is a mixed color of red and yellow, representing vitality, liveliness, surging, excitement and enthusiasm. Therefore, the "level 2 severity" level of the early warning signal is expressed in orange, which means that the current weather state is in a strong convection state, indicating a high degree of disaster.

4. Red: Red is usually used for warning, representing the occurrence of accidents, which means fiery, bold, combative, vigorous and passionate. You must stop at the traffic red light, otherwise it is illegal, which is the most serious degree of expressing the incident. Therefore, the level of the early warning signal "1 particularly serious" is indicated in red, indicating that the meteorological disaster at this time has reached a very serious level and emergency measures need to be taken.

To sum up, each color can compare the severity of meteorological disasters from its own meaning.