How many colors are there in the weather warning? What do they all represent?

According to the different approaching time and intensity, the typhoon warning signal is divided into four levels, which are represented by blue, yellow, orange and red respectively.

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.

Guide to defense: 1. Prepare for the wind and pay attention to relevant reports and notices; 2, doors and windows, coaming and other structures that are easily blown by the wind, properly place outdoor items.

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.

Guide to defense: 1. It is recommended that kindergartens and nurseries be closed; 2. Residents and ships in dangerous areas and dangerous houses should take shelter from the wind, and outdoor workers should stop working; 3, cut off neon lights and dangerous outdoor power supply; 4. Stop open-air collective activities; Other typhoon blue warning signals.

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.

Defense guide: 1, emergency windproof state, it is recommended to suspend classes in primary and secondary schools; 2. Don't go out at will, and ensure that the elderly and children stay in the safest place at home; 3. Relevant emergency departments and rescue units should closely monitor the disaster situation and implement countermeasures; 4. Stop large-scale indoor assembly to evacuate people; 5. Strengthen port facilities; Other same as above.

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.

Defense Guide: 1, especially in case of emergency windproof, it is recommended to suspend business and classes (except for special industries); 2. Personnel should stay in a windproof and safe place as far as possible, and relevant emergency departments and emergency rescue units should be ready to start emergency rescue plans at any time; 3. When the typhoon center passes by, the wind will decrease or stay still for a period of time, so you should continue to stay in a safe place to avoid the wind; Other same as above.

Rainstorm warning

Rainstorm warning

There are three kinds of signals: yellow, orange and red.

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.

Guide to defense: 1. Parents, students and schools should pay special attention to weather changes and take preventive measures; 2. Cover the articles that are aired in the open air, and the relevant units should do a good job in drainage and flood control in low-lying and waterlogged areas; 3. Drivers should pay attention to road water and traffic jams to ensure safety; 4. Check the drainage system of farmland and fish ponds to reduce the water level of easily flooded fish ponds.

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.

Defense Guide: 1, suspend outdoor work in open air, and stay indoors or in a safe place to avoid rain as much as possible; 2. Relevant emergency departments and rescue units closely monitor the disaster situation and cut off dangerous outdoor power supply in low-lying areas; 3. Traffic management departments should implement traffic guidance or control in areas with accumulated water; 4. Move dangerous areas and dangerous residents to safe places for shelter from the rain; Other same as above.

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.

Guide to defense: 1. Outdoor personnel should immediately go to a safe place for temporary refuge; 2. Relevant emergency departments and emergency rescue units are ready to start emergency rescue plans at any time; 3. Schools, kindergartens and other relevant units with students and employees should take special protective measures, and units in dangerous areas should suspend classes or suspend business and immediately move to safe places for temporary refuge; Other same as above.

High temperature warning

High temperature warning

The signals are represented by orange and red respectively.

Color: orange

Meaning: The maximum temperature will rise above 37℃ within 24 hours.

Guide to defense: 1. Try to avoid outdoor activities at high temperature in the afternoon, give guidance to the old, weak, sick and young people for heatstroke prevention and take necessary protective measures; 2. Pay attention to prevent power equipment such as wires and transformers from using too much electricity and causing fires due to excessive load; 3. Operators working outdoors or under high temperature conditions should take necessary protective measures; 4. Pay attention to work and rest time, ensure sleep, and prepare some commonly used heatstroke prevention and cooling drugs when necessary; 5, the media should strengthen the propaganda of heatstroke prevention and cooling health care knowledge, and all relevant departments and units should implement heatstroke prevention and cooling safeguard measures.

Color: red

Meaning: The maximum temperature will rise above 40℃ within 24 hours.

Guide to defense: 1. Pay attention to heatstroke prevention and cooling, and minimize outdoor activities during the day; 2, the relevant departments should pay special attention to fire prevention; 3. It is suggested to stop outdoor open-air operation; Other same as above.

Fog warning

Fog warning

The signal is divided into three levels, which are represented by yellow, orange and red respectively.

Color: yellow

Meaning: Fog with visibility less than 500 meters may appear within 12 hours, or fog with visibility less than 500 meters and greater than or equal to 200 meters has appeared and may continue.

Guide to defense: 1. Pay attention to the change of dense fog and drive carefully; 2. Pay attention to the traffic safety of airports, highways and ferry terminals.

Color: orange

Meaning: Dense fog with visibility less than 200 meters may appear within 6 hours, or dense fog with visibility less than 200 meters and greater than or equal to 50 meters has appeared and may continue.

Defense guide: 1, the air quality has obviously decreased, and residents need proper protection; 2. The driver should control the speed; 3. Airports, expressways and ferry terminals take measures to ensure traffic safety.

Color: red

Meaning: Strong fog with visibility less than 50 meters may appear within 2 hours, or strong fog with visibility less than 50 meters has appeared and may continue.

Guide to defense: 1. Airports in areas affected by strong fog are suspended from taking off and landing, and highways and ferries are temporarily closed or suspended; 2, all kinds of motor vehicles should take effective measures to ensure safety.

Thunderstorm and gale warning

Thunderstorm and gale warning

The signal is divided into four levels, which are represented by blue, yellow, orange and red respectively.

Color: blue

Meaning: It may be affected by thunderstorms and strong winds within 6 hours, with an average wind force of more than 6, or a gust of more than 7 accompanied by lightning; Or have been affected by thunderstorms and strong winds, with an average wind force of 6-7, or gusts of 7-8 accompanied by lightning, and may continue.

Guide to defense: 1. Prepare for wind and lightning protection, and pay attention to relevant reports and notices. Students should stay in a safe place; 3, doors and windows and other structures that are easy to be blown by the wind are fastened. Personnel should leave the temporary structures as soon as possible and properly arrange outdoor items that are easily affected by thunderstorms and strong winds.

Color: yellow

Meaning: It may be affected by thunderstorms and strong winds within 6 hours, with an average wind force of 8 or above, or a gust of 9 or above accompanied by strong lightning; Or have been affected by thunderstorms and strong winds, with an average wind force of 8-9, or a gust of 9- 10 accompanied by strong lightning, and may continue.

Guide to defense: 1. Take good care of valuable electrical equipment vulnerable to lightning, and put it in a safe place after power failure; 2. Residents in dangerous areas and dangerous houses, as well as ships, should take shelter from the wind. Never shelter from the rain under trees, telephone poles or tower cranes. You should turn off your cell phone when there is lightning. 3, cut off neon lights and dangerous outdoor power supply; 4. Stop open-air collective activities and evacuate people immediately; 5, high altitude, water and other outdoor workers to stop work, the danger zone personnel evacuation; Other same as above.

Color: orange

Meaning: It may be affected by thunderstorms and strong winds within 2 hours, and the average wind power may be above 10, or the gust 1 1 above, accompanied by strong lightning; Or have been affected by thunderstorms and strong winds, the average wind force 10- 1 1, or gust112 accompanied by strong lightning, and may continue.

Guide to defense: 1. Don't go out and make sure to stay in the safest place; 2. Relevant emergency departments and emergency rescue units are ready to start emergency rescue plans at any time; 3. Strengthen port facilities to prevent ships from anchoring and collision; Other same as above.

Color: red

Meaning: It may be affected by thunderstorms and strong winds within 2 hours, and the average wind power can reach more than 12 with strong lightning; Or it has been affected by thunderstorms and strong winds, and the average wind force is above 12 with strong lightning, and it may continue.

Defense Guide: 1, enter a special emergency windproof state; 2. Relevant emergency departments and emergency rescue units are ready to start emergency rescue plans at any time; Other same as above.

gale warning

The warning signal of gale (except typhoon, thunderstorm and gale) is divided into four levels, which are represented by blue, yellow, orange and red respectively.

Color: blue

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

Defense Guide: 1, prepare for wind protection; 2. Pay attention to the latest news about strong winds and notices about wind prevention reported by the media; 3, easy to be blown by the wind doors and windows, coaming, scaffolding, temporary structures, etc., properly placed outdoor items susceptible to strong winds.

Color: yellow

Meaning:/kloc-It may be affected by strong winds within 0/2 hours, with an average wind force of 8 or above or a gust of 9 or above; Or it has been affected by strong winds, with an average wind force of 8-9, or a gust of 9- 10 and may continue.

Defense Guide: 1, enter the windproof state, and suggest that kindergartens and nurseries be closed; 2, close the doors and windows, dangerous areas and dangerous residents and ships should take shelter from the wind, and notify outdoor workers such as high altitude and water to stop working; 3, cut off neon lights and dangerous outdoor power supply; 4. Stop open-air collective activities and evacuate people immediately; Other same as above.

Color: orange

Meaning: It may be affected by strong winds within 6 hours, and the average wind force can reach 10 or above, or the gust 1 1 above; Or have been affected by strong winds, with average wind force 10- 1 1, or gust112, and may continue.

Defense Guide: 1, enter an emergency windproof state, and suggest that primary and secondary schools be closed; 2. Residents should not go out at will to ensure that the elderly and children stay in the safest place at home; 3. Relevant emergency departments and emergency rescue units should be on duty, closely monitor the disaster situation and implement countermeasures; 4. Strengthen port facilities to prevent ships from anchoring and collision; Other same as above.

Color: red

Meaning: There may be gale with average wind power 12 or above within 6 hours, or gale with average wind power 12 has already appeared and may continue.

Guide to defense: 1. It is recommended to stop business and classes (except for special industries) when entering the special emergency windproof state; 2. Personnel should stay in a windproof and safe place as far as possible, and relevant emergency departments and emergency rescue units should be ready to start emergency rescue plans at any time; Other same as above.

Hail warning

Hail warning

The signal is divided into two levels, which are represented by orange and red respectively.

Color: orange

Meaning: There may be hail with lightning weather within 6 hours, and it may cause hail disaster.

Guide to defense: 1. Pay attention to weather changes and prepare for hail suppression and lightning protection; 2, proper placement of outdoor items, cars, etc. , vulnerable to hail; 3. Old people and children should not go out and stay at home; 4. Drive poultry and livestock to a safe place with a canopy; 5. Don't enter isolated shacks, sentry boxes and other buildings or under big trees, and turn off your mobile phone when there is lightning; 6. Prepare for artificial hail suppression and wait for the opportunity to implement artificial hail suppression.

Color: red

Meaning: There is a great possibility of hail with lightning weather within 2 hours, which may cause a great hail disaster.

Guide to defense: 1. Outdoor pedestrians should immediately take refuge in a safe place; 2. Relevant emergency departments and emergency rescue units are ready to start emergency rescue plans at any time; Other same as above.