Trial Provisions of Shanghai Municipality on Issuing Warning Signals of Severe Weather

Typhoon warning signals are divided into three levels, which are represented by yellow, red and black respectively.

(1) Typhoon yellow warning signal

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Meaning: tropical cyclone 12 hours may or has affected this city, and the maximum wind force can reach or has reached 8 or above.

Defense guide:

1, the public should pay attention to the relevant media reports, understand the typhoon dynamics, and properly arrange outdoor items that are easily affected by typhoons;

2. All departments and units should pay attention to the typhoon dynamics and prepare for defense;

3, the relevant units to strengthen outdoor equipment, notify the high altitude, water and other outdoor workers to take effective defensive measures.

(2) Typhoon red warning signal

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Meaning: Tropical cyclone may or has affected this city within 6 hours, and the maximum wind force can reach or has reached 10.

Defense guide:

1. Citizens should try to stay indoors or in a safe place to avoid the wind;

2, the relevant emergency departments and rescue units to strengthen the duty, closely monitor the disaster situation, the implementation of countermeasures;

3. Relevant units shall notify outdoor operators such as those working at high altitude and on water to stop their operations and evacuate personnel in dangerous areas.

(3) Typhoon black warning signal

Icon: (omitted)

Meaning: Tropical cyclone may or has affected this city within 6 hours, and the maximum wind force can reach or has reached 12 or more.

Defense guide:

1, outdoor operators such as high altitude and water stop working, and personnel in dangerous areas are evacuated;

2. Relevant emergency departments and emergency rescue units are ready to start emergency rescue plans at any time;

3, schools, kindergartens and other related units to take special protective measures, if necessary, in dangerous areas can be closed, closed. Second, the rainstorm warning signal

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

(1) Yellow rainstorm warning signal

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Meaning: The rainfall in some areas of this city 1 hour will reach or has reached more than 30mm.

Defense guide:

1, the public should pay attention to listen to and watch relevant media reports to get the latest information about the rainstorm;

2. Relevant units shall notify outdoor workers to take effective protective measures;

3, low-lying, flood prone areas to do a good job of drainage and flood control.

(2) Rainstorm red warning signal

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Meaning: The rainfall in some areas of this city 1 hour will reach or exceed 60mm.

Defense guide:

1. Citizens should try to stay indoors or in a safe place to avoid the rain;

2, the relevant emergency departments and rescue units to strengthen the duty, closely monitor the disaster situation, the implementation of countermeasures;

3. Outdoor operations vulnerable to heavy rain need to take special protective measures, and operations can be suspended when necessary.

(c) Black rainstorm warning signal

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Meaning: In some areas of this city, 12 hour rainfall will reach or has reached 150 mm or more, and the rainfall may continue.

Defense guide:

1, outdoor workers suspend their operations;

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 need to take special protective measures, and can suspend classes or suspend business in dangerous areas when necessary. Third, the high temperature warning signal

The high temperature warning signal is divided into two levels, which are represented by red and black respectively.

(1) high temperature red warning signal

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Meaning: within 24 hours, the highest temperature in this city will or has risen above 35℃.

Defense guide:

1, all departments and units should pay attention to high temperature information and do a good job in heatstroke prevention and cooling;

2, the relevant units to provide guidance for the old, weak, sick and young people, and take necessary protective measures;

3. The relevant units shall notify the operators outdoors or under high temperature conditions to take necessary protective measures.

(2) High temperature black warning signal

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Meaning: within 24 hours, the highest temperature in this city will or has risen above 38℃.

Defense guide:

1, the public should try to avoid outdoor activities in the afternoon high temperature period;

2, the relevant departments and units to implement the safeguard measures for heatstroke prevention and cooling. Four, low temperature warning signal

The low temperature warning signal is divided into two levels, which are represented by red and black respectively.

(1) low temperature red warning signal

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Meaning: Affected by the invasion of cold air, the temperature drop in this city exceeds 6℃ within 24 hours, and the minimum temperature will or has dropped below 0℃.

Defense guide:

1, the public should pay attention to adding clothes to keep warm in time;

2, the relevant departments and units to do a good job of frost and freezing defense.

(2) Low temperature black warning signal

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Meaning: Affected by the invasion of cold air, the temperature in this city has dropped sharply, the minimum temperature will or has dropped below minus 5℃, and the daily average temperature will drop below 0℃.

Defense guide:

1. All relevant departments and units start the emergency anti-freezing plan and implement the cold and anti-freezing measures;

2, the relevant units to inform outdoor workers to take cold measures. Five, fog warning signal

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

(1) foggy red warning signal

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Meaning: Fog with visibility less than 200 meters may appear or have appeared in some areas of this city in the next 3 hours, and the visibility may be further reduced.

Defense guide:

1, the heavy fog has obviously reduced the air quality, and the public needs proper protection;

2. Airports, expressways and ferry terminals shall take measures to ensure traffic safety.

(2) Fog black warning signal

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Meaning: In the next 3 hours, fog with visibility less than 50 meters may appear or have appeared in some areas of this city, and it may last for some time.

Defense guide:

1. Airports in areas affected by heavy 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.