An extreme heatwave peaked in the western United States on Sunday, with temperatures reaching 128 Fahrenheit (53 Celsius) in the California desert, while flash flooding continued to menace the Northeast, killing at least five people.
Nearly a quarter of the U.S. population fell under extreme heat advisories, partly due to a stubborn heat dome that has been parked over western states. While baking parts of the country, the heat dome has also helped generate heavy rains in the Northeast, a pattern expected to continue for days if not weeks, according to the National Weather Service.