LAS VEGAS -- High temperatures again brought discomfort to much of the Southwest on Sunday as many parts of the region were coming off record-breaking days of heat and bracing for more sizzling temperatures.
Triple digits were on tap for the valleys and desert regions of Southern California, while metropolitan Phoenix was expected to see a slight drop in temperatures after experiencing record-breaking highs Saturday.
Six half-marathon runners in Southern California were hospitalized Sunday for heat-related illnesses. They were extremely dehydrated, and some experienced cramps, said Pasadena Fire Department spokeswoman Lisa Derderian.
In Utah, the heat wave caused an interstate on-ramp to buckle in Salt Lake City, authorities said Sunday. The I-215 on-ramp had to be closed for four hours Saturday night after a short section expanded and buckled in record 105-degree heat, Utah Department of Transportation spokesman John Gleason said.
"You could see more of this if the temperatures are this hot for an extended time," Gleason said Sunday.
In Phoenix, the 119-degree high on Saturday marked the fourth-hottest day in the city since authorities started keeping temperature records more than 110 years ago. The high temperature forecast for the metro area for Sunday was 116. Temperatures could drop slightly in Phoenix within the coming days as monsoon storms are expected to make their way through the state.
Several Southern California communities set same-day record highs Saturday including Palm Springs, where the mercury peaked at 122 degrees. Death Valley, the hottest place on the planet, reached 127 degrees Saturday. It was forecast to be 1 degree hotter Sunday. As sweltering as it will be, it's still shy of the record high of 134 degrees, set nearly a century ago on July 10, 1913.
In Las Vegas, temperatures were on the rise again after the city reported a record overnight low of 89 degrees Sunday.
With the temperature at 111 degrees early Sunday afternoon, National Weather Service forecaster Dan Berc said Las Vegas could also break its record high of 117 degrees set in 2005 and 1942. Forecasters are calling for the high to reach 116 degrees.