High temperature warning one two three four colors

The high temperature warning signal is divided into four levels, which are represented by blue, yellow, orange and red respectively from low to high.

High temperature blue warning: 48-hour maximum temperature of 35℃ and above;

The yellow warning signal of high temperature indicates that the weather is sultry, generally indicating that the daily maximum temperature will be above 35℃ for three consecutive days;

The high-temperature orange warning signal indicates that the weather is hot, which generally means that the maximum temperature will rise above 37℃ within 24 hours;

High temperature red warning signal means extremely hot weather, which generally means that the maximum temperature will rise above 40℃ within 24 hours.

Meteorology In China, when the temperature is above 35℃, it can be called "high temperature weather". If the highest temperature exceeds 35℃ for several days, it can be called "high temperature heat wave", which usually refers to the continuous high temperature process. Due to the long duration of high temperature, people, animals and plants can not adapt to it, which has adverse effects.