What do the red, yellow and blue warnings in the weather forecast mean respectively? Which color level is the highest?

The so-called orange warning, blue warning and red warning are the pre-signals of weather forecast. Generally, the forecast of severe weather such as typhoon, rainstorm, high temperature, cold wave, low temperature and cold, thunderstorm and gale is divided into four levels (IV, III, II and I). According to the severity and urgency of the disaster, the colors are blue, yellow, orange and red in turn, and they are marked in Chinese and English, representing general and strong wind respectively. This practice began in China in recent two years after Europe and America.

Generally speaking, above the orange signal, people should not go out and be prepared for disaster prevention.

typhoon warning

Color: blue

Meaning: It may be affected by tropical depression within 24 hours, with an average wind force of above 6 or a gust of above 7; Or it has been affected by tropical depression, with an average wind force of 6-7, or a gust of 7-8 and may continue.

Color: yellow

Meaning: It may be affected by tropical storms within 24 hours, with an average wind force of more than 8 or a gust of more than 9; Or it has been affected by tropical storms, with an average wind force of 8 ~ 9, or a gust of 9 ~ 10 and may continue.

Color: orange

Meaning: It may be affected by a strong tropical storm within 12 hours, and the average wind force may be above 10, or the gust 1 1 above; Or have been affected by a strong tropical storm, the average wind force 10 ~ 1 1, or the gust112 may continue.

Color: red

Meaning: It may be or has been affected by the typhoon within 6 hours, and the average wind power can reach more than 12, or it has reached more than 12 and may continue.

Rainstorm warning

Color: yellow

Meaning: within 6 hours, the rainfall will reach more than 50 mm, or it has reached more than 50 mm and the rainfall may continue.

Color: orange

Meaning: within 3 hours, the rainfall will reach more than 50 mm, or it has reached more than 50 mm and the rainfall may continue.

Color: red

Meaning: The rainfall in 3 hours will reach 100 mm or above, or it has already reached 100 mm and the rainfall may continue.