France's wildfires have generated powerful fire clouds, creating new threats. These pyrocumulonimbus clouds produce their own winds and lightning, complicating firefighting efforts. Hundreds of thousands have been evacuated from their homes during this severe wildfire season. The unpredictable nature of these fire clouds makes evacuation planning more difficult for authorities. This extreme fire-generated weather presents a significant new challenge for France's emergency services.

L'incendie massif en Gironde a généré un "pyrocumulonimbus", ou "orage de feu".

France fought an "unpredictable" wildfire close to Bordeaux on Sunday while Spain warned of "difficult hours" in its own fiery battle, with evacuations from danger zones in both…