High temperature warning grade color four-level sequence

The order of the four levels is blue, yellow, orange and red.

Blue indicates low-level high-temperature warning, which is used to warn mild high-temperature weather and has little impact on life and work.

Yellow indicates intermediate high-temperature warning, which is used for early warning of obviously high-temperature weather, which has a certain impact on human health and some work activities.

Orange indicates high-level high-temperature warning, which is used to warn severe high-temperature weather and has great influence on human health and most work activities.

Red indicates the highest level of high-temperature warning, which is used to warn extreme high-temperature weather and has a serious impact on human health, life safety and most work activities.

High temperature warning is divided into four levels, corresponding to different colors, and the standards are as follows:

1. Blue warning: When the temperature reaches 35℃ or the average daily temperature reaches 37℃ for three consecutive days, a blue warning will be issued. At this time, the human body may feel uncomfortable, and attention should be paid to avoiding sunlight.

2. Yellow warning: When the temperature reaches 37℃ or the average daily temperature reaches 39℃ for three consecutive days, a yellow warning will be issued. At this time, the human body is vulnerable to high temperature, so we should wear light clothes, drink water frequently and reduce outdoor activities.

3. Orange warning: When the temperature reaches 40℃ or the average daily temperature reaches 42℃ for three consecutive days, an orange warning will be issued. At this time, the human body is in a dangerous state of high temperature, so outdoor activities should be avoided as far as possible, and travel should avoid peak hours and replenish water regularly.

4. Red warning: When the temperature reaches 4 1℃ or the average daily temperature reaches 43℃ for three consecutive days, a red warning will be issued. At this time, the human body is vulnerable to high temperature, so we should rest in a cool air environment and prohibit outdoor work and sports. At the same time, pay attention to hydration and keep indoor ventilation and cooling.

I. Matters needing attention after high temperature warning:

1, indoor summer: try to stay indoors and avoid contact with high temperature. In order to maintain a cool indoor environment, air conditioners, fans or sunshade curtains can be used to reduce the indoor temperature.

2. Replenish water: High temperature weather can easily lead to dehydration, so be sure to fully replenish water. Drink plenty of water and electrolytes, and avoid excessive drinking, coffee or tea drinks.

3. Avoid outdoor activities: Try to avoid outdoor activities at high temperature, especially at noon and afternoon. If you need to go out, you should choose a cool and ventilated place and avoid exposure to the sun for a long time.

4, pay attention to diet: choose light and digestible food, avoid greasy and spicy food. Eat more fruits, vegetables and water-rich foods, such as watermelons, cucumbers and oranges.

To sum up, the order of the four colors of high temperature warning level is blue, yellow, orange and red.

Legal basis:

Measures to issue and disseminate meteorological disaster early warning signals

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The release and dissemination of meteorological disaster warning signals in People's Republic of China (PRC) and other sea areas under the jurisdiction of People's Republic of China (PRC) must abide by these measures.

The term "meteorological disaster early warning signal" as mentioned in these Measures refers to the early warning information released to the public by the meteorological stations subordinate 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.

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The levels of early warning signals are generally divided into four levels according to the degree of harm, urgency and development trend that may be caused by meteorological disasters: level IV (general), level III (heavier), level II (severe) and level I (particularly severe), which are indicated by blue, yellow, orange and red in turn and marked in Chinese and English.

According to the characteristics and early warning ability of different kinds of meteorological disasters, this method determines the early warning signal levels of different kinds of meteorological disasters.