Europe is bracing for an intense heatwave as a persistent heat dome builds across the continent this August. Meteorologists at Severe Weather Europe report that a powerful ridge of high pressure is strengthening over southern and central Europe, pushing temperatures into the low 40s Celsius in France, Italy and the Balkans by mid-August. This high-pressure system acts like a lid, trapping warm air underneath and preventing cooler air from moving in. The result is a “heat dome,” a phenomenon that forces temperatures to climb and stay elevated for days or weeks. After a brief break earlier this month, the dome is reasserting itself and expanding northward. Forecasts warn that scorching heat will reach the United Kingdom, Benelux, Slovakia, Ukraine and Poland in the coming days.
The ongoing heat is expected to intensify drought conditions and may worsen wildfires, particularly in southern France and the Iberian Peninsula where fires have already burned thousands of hectares. Over the next ten days, temperatures are forecast to return to 40 °C or higher across Spain, Portugal and France. Saturday could bring highs of 42 °C in Spain, with France, Italy and Greece not far behind. Such extreme heat increases the risk of dehydration and heat stroke, especially for the elderly, children and outdoor workers. Authorities across Europe are urging people to stay hydrated, reduce outdoor activities during peak heat and check on vulnerable neighbours. Emergency services and hospitals are preparing for a potential surge in heat-related incidents.
Heat domes are becoming more common as climate change warms the planet and alters atmospheric circulation. When a broad area of high pressure parks over a region for an extended period, it suppresses convection and traps heat. This event highlights the need for adaptation strategies, such as developing heat action plans, improving urban infrastructure to cope with extreme temperatures, and increasing public awareness. As Europe enters mid-August under the shadow of this heat dome, residents and travellers are advised to monitor local forecasts and heed safety guidance. The coming weeks will test the resilience of communities and serve as a reminder of the growing impacts of climate change.
Source: https://www.severe-weather.eu/global-weather/european-heat-dome-extreme-heatwave-europe-august-2025-mk/
