An unusually strong area of high pressure — or heat dome — is leading to historic extremes of heat in the Southwest.
Dozens of cities and towns in the Southwest United States set record highs on Sunday — some nearing their hottest days ever recorded.
Locations that established daily record highs Sunday included: Yuma (120), Phoenix (118), Tucson (115), Burbank, Calif. (109), Albuquerque (103, tie), and Santa Fe (102).|
Several of these temperatures ranked among the hottest ever recorded in their respective locations. Excessive heat warnings blanket much of Southern California, southern Nevada, and southern Arizona.