France has documented its first-ever fire cloud, or pyrocumulonimbus, as record-breaking wildfires continue to burn across the country.
Key facts
- •France has recorded its first-ever pyrocumulonimbus cloud, a weather phenomenon created by intense wildfire heat.
- •Fire clouds can produce lightning and downdrafts that exacerbate existing fires or start new ones.
- •Over 220,000 acres have burned in France this year, six times the annual average.
- •A 2024 study found that the global incidence of extreme fires more than doubled between 2003 and 2023.
- •Temperatures in France are expected to climb back above 104 degrees Fahrenheit later this week.
Firefighters in France are battling extreme wildfires that have generated a pyrocumulonimbus cloud, a phenomenon never before documented in the region. These fire-generated clouds, which form when superheated smoke rises into the atmosphere, can trigger lightning strikes and powerful downdrafts that further intensify blazes. The event highlights the unprecedented scale of this summer's fire season, which has already surpassed previous records for destruction in France.
By the numbers
The Mechanics of Fire Clouds
Pyrocumulonimbus clouds, also known as cumulonimbus flammagenitus, form when intense heat from fires combines with dry ground conditions and moist air aloft. As smoke rises, water vapor condenses around ash particles to form droplets, which eventually turn into ice crystals. These clouds rarely produce rain; instead, they can create lightning that ignites new fires and generate downdrafts that spread existing flames.
Record-Breaking Fire Season
Data from the European Forest Fire Information System indicates that the past week was the most destructive for wildfires in France over the last 20 years, doubling the previous record. More than 220,000 acres have burned in the country so far this year, which is six times the annual average and 61,000 acres higher than the previous yearly record. Temperatures are expected to rise again, with forecasts exceeding 104 degrees Fahrenheit in France and 108 degrees Fahrenheit in Spain.
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This article was independently rewritten by ManyPress editorial AI from reporting originally published by Wired.
