Records tumbled across the U.S. Southwest on Thursday as temperatures soared past 110 degrees Fahrenheit (43 degrees Celsius) in some areas, and the region’s first heat wave of the year was expected to maintain its grip for at least another day.
Although the official start of summer was still two weeks away, roughly half of Arizona, California and Nevada were under an excessive heat alert, which the National Weather Service said it was extending until Friday evening.
