US Southwest swelters under dangerous heat wave, with new records on track

A dangerous heat wave threatened a wide swath of the Southwest with potentially deadly temperatures in the triple digits on Saturday as some cooling centers extended their hours and emergency rooms prepared to treat more people with heat-related illnesses.
“Near record temperatures are expected this weekend!” the National Weather Service in Phoenix warned in a tweet, advising people to follow its safety tips such as drinking plenty of water and checking on relatives and neighbors.
About 110,000 people, or about a third of Americans, were under extreme heat advisories, watches and warnings Saturday as the blistering heat wave was forecast to get worse this weekend for Nevada, Arizona and California. Temperatures in some desert areas were predicted to soar past 120 degrees Fahrenheit (48.8 degrees Celsius) during the day, and remain in the 90s F (above 32.2 C) overnight.