Swaths of the United States home to more than 80 million people were under heat warnings or advisories Sunday, as relentless, record-breaking temperatures continued to bake western and southern states.
In Arizona, the state capital Phoenix recorded its 17th straight day above 109 degrees Fahrenheit (43 degrees Celsius), as temperatures hit 113˚F (45˚C) on Sunday afternoon.
The sprawling city, home to over 1.6 million people, is under an Excessive Heat Warning until Wednesday evening, according to the NWS, which said Sunday morning’s low of 94˚F (34˚C) equalled its warmest low temperature on record.