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‘Dangerous,’ record-breaking heat scorches southern US

Extreme, record-breaking heat will continue to bake a large portion of the southern tier of the U.S. early this week.

After a sweltering weekend, heat advisories and excessive heat warnings remained in place Monday across the southern U.S. all the way from southern California to the Florida Panhandle, and there was the potential for more record high temperatures and very dangerous heat indices, the National Weather Service said.

Temperatures could even come to within a few degrees of all-time record highs set as far back as the Dust Bowl era of the 1930s, AccuWeather said. “Excessively hot temperatures and high humidity may cause heat illnesses to occur,” the weather service in New Orleans warned. Dozens of record highs were set across the Southwest on Sunday.

Sunday, Phoenix had its hottest day since July 25, 2018, soaring to a record 116 degrees, weather.com said. The city is also threatening its record-long streak in which its daily low temperature did not drop out of the 90s. Palm Springs, California, hit a record high of 121, the weather service said. California’s notorious hot spot, Death Valley, soared to 128 degrees on Sunday, and its overnight low was a searing 100 degrees, according to the weather service.

In the South, temperatures near 100 degrees and high humidity will make it feel like it is 105 to 115 in some areas this week, ABC News reported. “When combined with higher humidity levels, it could feel worse to some people when compared to that of the Southwest, especially in heavily urbanized areas where there is little breeze during the afternoon and early evening hours,” AccuWeather meteorologist Alex Sosnowski said.

This dangerous heat is the result of a large ridge of high pressure that stretches from the Desert Southwest to the Deep South; the center is anchored over the southern Rockies, according to WeatherBug.