Latest News About Heat Dome Locks In Heat Across Europe, Prompting Alerts

A heat dome traps heat when a intense high-pressure system lingers overhead, acting like a rigid lid that holds hot air near the ground. That effect stops cooler air from moving in while pushing daytime highs even higher, locking in severe temperatures for days. Europe is preparing for its second run of this in two months, with the U.K. expected to climb past 38°C as further east edges toward 113°F. France just logged its hottest night to date and now has emergency red alerts in place as the heat dries grasslands and keeps concrete cities from losing warmth even after sunset.

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