As the UK experiences a third heatwave, numerous wildfires have been raging across the country. This has led to the emergence of a concerning phenomenon known as a “firewave,” according to experts. The risk of wildfires is currently at an all-time high, with soaring temperatures expected to persist, prompting the declaration of an “exceptional” wildfire threat in various UK regions, including southern England, the Midlands, and parts of the north.

A red alert remains in effect for these areas, where firefighters are facing immense pressure to combat the flames. In response to the escalating situation, a warning for a ‘firewave’—which occurs when multiple wildfires erupt in urban settings—has been issued. London Mayor Sadiq Khan has urged residents to create firebreaks to safeguard their homes, following a recent blaze that caused significant damage in Walthamstow. Major incidents have also been reported in Conwy, north Wales, and Glossop, Derbyshire.

Firefighters have been battling blazes in various locations, including Hampshire, Durham, West Sussex, East Sussex, Devon, and Somerset. Data from the National Fire Chiefs Council revealed that between July 6 and Monday, fire and rescue services in England and Wales responded to 342 wildfires.

Commenting on the heightened risk of a firewave, Joe McNorton, a scientist at the European Centre for Medium-Range Weather Forecasts, highlighted the combination of hot, dry weather and highly flammable vegetation due to prolonged drought conditions. He emphasized that these conditions, though uncommon for large wildfires in the UK, can facilitate rapid fire spread through grasslands, heaths, and moorlands.

Garth Smith, head of resilience at the British Red Cross, emphasized the devastating speed at which wildfires can spread, endangering homes, ecosystems, and lives. He encouraged people to stay informed about risks in their area, prepare escape routes, heed local alerts, and remove flammable materials from their properties to mitigate the threat.

The warning coincides with a tragic event in Spain, where 13 individuals lost their lives in one of the country’s deadliest wildfires. The incident serves as a stark reminder of the potential dangers posed by wildfires, urging people to stay vigilant and take necessary precautions to prevent further tragedies.