Fifth Heat Dome Expands Across Europe: 40°C+ Highs Target Western and Central Europe

A high-amplitude upper-level ridge is locking the fifth major Heat Dome of the season over continental Europe, pushing widespread afternoon temperatures past 40 °C as mid-August begins. Driven by a powerful northward warm surge, upper-air thermal anomalies will once again climb into the 99th percentile, bringing severe excessive heat across France, the UK, Italy, Central Europe, and the Balkan Peninsula. The primary atmospheric engine behind this 5th thermal wave is a stubborn high-pressure ridge parked over the heart of the continent. As sinking air adiabatically compresses and warms the lower troposphere, peak surface temperatures across low-lying basins and plains are forecast to reach 40 °C to 43 °C, with dry continental winds keeping humidity low and rapidly depleting soil moisture. This renewed thermal surge offers minimal nocturnal relief, as overnight low temperatures refuse to drop below 22 °C to 26 °C across major urban corridors. The lack of nighttime cooling compounds severe physiological stress for millions of residents, skyrockets energy grid demand, and maintains extreme wildfire conditions across southwestern and central Europe.