An unprecedented early-season heatwave, driven by a stationary high-pressure heat dome, has engulfed Western Europe, forcing governments across the continent to activate emergency heat protocols and leaving millions of residents and visitors grappling with sweltering conditions. Italy became the latest nation to roll out urgent safety measures Thursday, when civil protection authorities issued the country’s first red heat alert of 2024 for five major urban centers, including the capital Rome, as well as Florence, Bologna, Brescia and Turin.
The alert, the highest level of heat warning in Italy’s national system, cautions that even otherwise healthy people engaging in outdoor activity face significant risks of adverse health impacts. For tourists flocking to Rome’s iconic landmarks, the 32-degree Celsius temperatures recorded Thursday have forced drastic adjustments to sightseeing plans. Spanish visitor Nana Martinez Garcia told reporters she and her travel companion have prioritized staying hydrated and sticking to shaded routes whenever possible. “We’re sweating a lot,” Garcia explained outside the Colosseum. “We’re drinking a lot of water so we can cool down.” Her friend Maria Angeles Mellinas Tello added that the pair seek out shade at every opportunity to avoid heat exhaustion. American tourist Josh Ren shared that he restructured his entire itinerary to beat the heat, waking before dawn to explore outdoor sites, then retreating to air-conditioned museums or restaurants during the midday peak when temperatures climb highest.
Italy had avoided the most extreme temperatures earlier in the week, but the heat dome has shifted south, bringing soaring conditions to the Italian peninsula. The heatwave first shattered long-standing temperature records across Britain and France earlier this week, with both countries logging their hottest May temperatures in recorded history. Tragically, the extreme heat has already claimed lives: authorities have linked multiple fatalities in both Britain and France to the heatwave, most occurring in drowning incidents as people sought relief from sweltering conditions in open water.
While the most intense heat has begun to ebb in Britain, France remained in the grip of extreme temperatures Thursday. In the southwestern Landes region, extreme heat forced a local school to close early for the week, after corridor temperatures spiked to 53 degrees Celsius on Tuesday, leaving multiple students ill. Landes official Florian Deygas confirmed that several pupils experienced severe heat-related illness, including one case of fainting and vomiting. National meteorological service Meteo France maintained an orange heat alert for Paris, where forecasters predicted temperatures would hit 34 degrees Celsius following the record-breaking heat that baked the country earlier that week.
The ongoing heat has also disrupted major sporting events underway in the French capital. At the Roland Garros French Open tennis tournament, located on the outskirts of Paris, competing players have struggled to cope with oppressive court conditions, with one athlete collapsing mid-venue after finishing a grueling, multi-hour match. Tournament maintenance staff have adopted extraordinary measures to keep the clay courts manageable, spraying water between every set and fully flooding the surface after daily play concludes to rehydrate the layered clay. “We flood the courts, we soak them, so as to replenish with water the different layers that make up the clay,” explained head maintenance worker Philippe Vaillant.
Further south, Spain has also rolled out heat alerts for regions in the country’s northeast and north, forecasting temperatures could climb as high as 37 degrees Celsius on Friday. National weather agency Aemet noted in a social media statement that current temperatures are “extraordinarily high” for the month of May, matching the extreme heat levels normally not seen until the height of summer. The agency forecasts a noticeable drop in temperatures across the country next week as the heat dome begins to break down.
Climate scientists have repeatedly emphasized that human-caused climate change is amplifying the frequency and intensity of extreme weather events globally, including early-season heatwaves, droughts, and catastrophic flooding, a trend that is expected to continue without dramatic reductions in greenhouse gas emissions.