Thunderstorm — Ardennes

A severe thunderstorm is currently active across the Ardennes, Aisne, and Marne regions, affecting an area of approximately 100 km. The storm began at 20:02 on 27 August and is expected to continue until 22:00. Conditions include heavy rainfall, lightning, and strong winds.

If you are on site, seek shelter immediately in a solid building and remain indoors until the storm passes. Avoid being outside, particularly near trees and rivers where risks are elevated. Do not travel unless absolutely necessary, and stay alert to changing conditions in your immediate surroundings.

Follow the official guidance from local authorities: keep away from trees and rivers, take shelter in a sturdy building, stay informed through local media, and avoid using telephones and electrical appliances during the storm. Protect any property that could be exposed to wind or flooding. This alert is confirmed by Météo-France.