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The weather | Passage of Ille-et-Vilaine department in heat wave orange alert: protect yourself

Updated on 19/07/2022

Météo-France has put the department of Ille-et-Vilaine on heat wave orange alert for a phenomenon of high heat starting tomorrow noon. State services and all stakeholders in Ille-et-Vilaine are fully mobilized to ensure the safety of the population during this remarkable event.

The heat wave will intensify over the next few days and many records should be broken. Tomorrow, temperatures can thus reach 35°C in the department and exceed 39°C on Monday with nights between 19 and 21°C.

The high heat can have a very rapid impact on everyone’s state of health, especially fragile people. Government services are fully mobilized to monitor the development of the situation, raise public awareness and ensure the protection of the most vulnerable people, namely people over 65, children under 4, people with disabilities, sick people at home, isolated people, people in precarious situations and homeless workers workers outside…

The transition of Ille-et-Vilaine to heat wave orange vigilance involves additional measures to the actions already carried out within the framework of the health management of the heat wave.

In accordance with the departmental heat wave management plan, the prefect of Ille-et-Vilaine informed all the mayors of the department and requested the activation of municipal protection plans, in particular to offer cooled rooms to their inhabitants.

The municipalities make contact with the vulnerable (elderly, isolated or disabled) in their area, to ensure that they are well and not missing anything, or if not, to remedy them as soon as possible. They invite vulnerable people to declare themselves.

The prefect put the emergency and rescue services on alert.

ARS is in permanent direct contact with medical-social health institutions, especially nursing homes.
Monitoring of hospital data is reinforced and continuous.

Prevention messages are sent to all relays. The recommendations to protect oneself from the heat and the measures to be taken according to premises, activities and public have been reminded to schools, educational institutions, early childhood structures, emergency accommodation structures, employers, etc.

The integrated reception and orientation services (emergency number 115) are on alert.

The operation of emergency accommodation structures is adapted to the extraordinary situation:

  • extension of night reception and day reception opening hours
  • suspension of the “rotational” operation of emergency accommodation systems (structures such as hotels) so as not to leave people outside
  • increase in hotel accommodation in relation to the condition of the most vulnerable households

The patrols carried out by the civil protection associations in the big cities are reinforced. They become daily, with extended hours, to meet the needs of the homeless, especially by providing them with bottles of water.

The organizers of sporting events are strongly encouraged to postpone or cancel the planned events for the next few days.

Reminder of useful advice and good actions to protect yourself in case of high heat

  • Keep your home cool (close windows and shutters during the day, open them in the evening and at night if it’s cooler)
  • Promote permanent ventilation of the premises
  • Drink water regularly, without waiting to get thirsty, and make your children drink often
  • Do not drink alcohol
  • Eat enough light, watery food (fruits and vegetables)
  • Cool down and wet your body (at least your face and underarms) several times a day
  • Avoid going out during the hottest hours
  • Prefers effortless activities in the hottest hours
  • Wear light, loose, light-colored clothing and a hat outdoors
  • If you have elderly, isolated or chronically ill people around you, check in with them or visit them
  • Choose to work remotely or adjust your schedules
  • Avoid non-essential travel during the hottest hours of the day
  • Do not engage in sports activities outdoors and avoid physical exertion.
  • Extinguish your cigarette butts and throw them in the bin
  • Do not use fireworks near vegetation

An information number is also available to the public: 0800 06 66 66 (free from landlines, Monday to Saturday 9am to 7pm).

In an emergency, call for help immediately

EMS: 15 | Emergency police: 17 | Firefighters: 18 | European number: 112 | Emergency call for the deaf and hard of hearing: 114


To know more

► The press release

> CP Vigilance orange heat wave in Ille-et-Vilaine_220716 – format: PDF
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► Useful links

Find all the recommendations to protect yourself from high heat on the websites:

Follow the development of the weather situation at:

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