What warning signal should be issued when the temperature is above 40 degrees?

When the temperature is higher than 40 degrees, red warning signal should be released.

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

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.

Extended data

Guide to high temperature red warning signal defense

① Pay attention to heatstroke prevention and cooling, and minimize outdoor activities during the day;

② Relevant departments should pay special attention to fire prevention;

③ It is suggested to stop outdoor open-air operation.

It's very hot and it's easy to get heatstroke. Take protective measures against other diseases caused by heatstroke, especially the elderly, infirm patients and children. The education department should arrange for schools without heatstroke prevention and cooling equipment to suspend classes; Suspend or cancel students' outdoor activities in strong sunlight; During the high temperature period, the competent labor department may issue a notice of suspension of business according to the situation; Others are the same as red high temperature signals.

High temperature orange warning signal defense guide

① Try to avoid outdoor activities at high temperature in the afternoon, provide guidance for the elderly, the weak, the sick and the disabled, and take necessary protective measures to open summer resorts in conditional areas;

(2) The relevant departments should pay attention to prevent electric power equipment such as wires and transformers from using too much electricity and overloading to cause fires;

③ Personnel engaged in outdoor activities or high-temperature operations 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 health care knowledge, and all relevant departments and units should implement safeguard measures for heatstroke prevention and cooling.

The relevant departments should strengthen the supervision and inspection of food hygiene and safety.

Guide to defense of high temperature yellow warning signal

① The weather is sultry, so we should pay attention to heatstroke prevention and cooling;

② Avoid long-term outdoor or high-temperature operation;

(3) The relevant departments and units should prepare for electricity and water use;

④ The media should strengthen the propaganda of heatstroke prevention and cooling health care knowledge.

Baidu encyclopedia-high temperature warning signal.