Early warning color grading standard

Warning color grading standards include blue warning, yellow warning and red warning.

1, blue warning

The blue alert is the lowest alert level. Refers to the possibility of meteorological disasters or dangerous situations of a general degree, but it will not pose a major threat to people's lives and property. Blue warning is usually used to remind the public to pay attention to weather changes and take appropriate preventive measures, such as paying attention to weather forecast and preparing necessary emergency items.

2. Yellow warning

The yellow alert is the higher alert level. It means that serious meteorological disasters or dangers may occur, posing a certain threat to people's lives and property. Yellow warning is usually used to remind the public to strengthen preventive measures, such as avoiding going out, strengthening buildings and preparing emergency supplies. At the same time, the government and relevant departments will also strengthen emergency response and prepare for disaster response.

3. Red warning

Red alert is the highest alert level. It means that a very serious meteorological disaster or danger may occur, which poses a great threat to people's lives and property. Red warning is usually used in emergencies, requiring the public to take immediate measures to avoid risks, such as evacuating dangerous areas and avoiding going out. At the same time, the government and relevant departments will launch the highest level of emergency response, and fully invest in disaster response to ensure the safety of public life and property.

Source of warning color

At first, the color of the warning signal may be just to facilitate people to distinguish different types of disasters or dangerous situations. With the continuous improvement and development of meteorological early warning system, people begin to realize the importance of color in visual communication. Different colors can cause people's different psychological reactions, thus better conveying early warning information.

Therefore, the meteorological early warning system began to use different colors to represent different levels of disasters or dangerous situations. The blue warning represents the lower level of danger, the yellow warning represents the higher level of danger and the red warning represents the highest level of danger. This color classification method not only helps the public to quickly identify and understand different levels of disasters or dangers, but also provides more intuitive and effective decision support for the government and relevant departments.

In addition, the source of warning color is also related to human visual system. The sensitivity of human visual system to different colors is different. Some colors attract people's attention more easily, while others are relatively easy to be ignored. Therefore, when choosing early warning colors, people usually choose those colors that are easy to attract people's attention to ensure that early warning information can be conveyed to the public in time and accurately.