Thunderstorm

The emergency response plan (PIU) in the event of extreme weather conditions defines the actions the government should take in the event of six weather conditions.

The population should adopt the following conduct in the event of a storm.

Orange vigilance - thunderstorm

hail between 1 and 3 cm, gusts of wind between 90 and 110 km/h or rain between 25 and 35 l/h

• when a storm is on its way, you should place objects likely to be blown around by the wind (garden furniture, parasols, etc.) under shelter;
• do not take shelter under trees, especially one that is isolated;
• if you are in an exposed place, squat down as low as possible with your feet together, your head between your folded arms and pressed against your knees;
• do not walk in the forest;
• avoid using a landline phone or electronic devices;
• inform the authorities if you witness any fires starting.

Red vigilance - thunderstorm

hail above 3 cm, gusts of wind exceeding 110 km/h or rain over 35 l/h

• avoid unnecessary travel;
• if you need to travel, make your way to a safe place quickly and stay there;
• avoid using a landline phone or electronic devices;
• tidy away or fix down objects likely to be affected by the wind, without placing yourself in danger;
• avoid outside activities (in particular on flat ground or near  trees, masts, antennae, electricity pylons and metallic objects);
• take refuge, until the all-clear announcement is made, in a more sheltered place or, if that is not possible, in your car ;
• safeguard your possessions from the rising water if in a zone liable to be affected by rising water levels;
• inform the authorities if you witness any fires starting.