The warnings are issued by state forecaster Météo France as part of its forest fire risk map.
The map is colour-coded with four tiers of warning (green, yellow, orange, red) similar to the forecaster’s weather maps.
It bases its report on several factors including weather conditions (the current heatwave having a major effect on fire risk), plant conditions, humidity, etc.
It does not provide an overview of where fires are currently located, but rather the likelihood of a fire starting.
It is updated daily and provides information for the current and following day. You can find more information about the map in our article here.
The arrival of storms in western France this evening will bring cooler air and dampness to much of France, reducing the likelihood of fires across much of the north tomorrow (June 26).
Those in at-risk areas should modify their actions to reduce the risk of starting a wildfire. The majority of wildfires in France start due to human activity, mainly carelessness.
You can check prefecture websites to see if certain areas are off-limits or certain works are banned, to reduce the risk of accidental blazes.