A historic “dangerous” heat wave is expected to blanket millions of people through the Great Basin region to the northern Plains beginning on July 12.
The National Weather Service (NWS) predicted the heatwave could set all-time high records on Sunday afternoon and peak by Tuesday with triple-digit highs.
The forecast proved correct on Sunday afternoon when Salt Lake City set an all-time record of 109 degrees Fahrenheit as of 4:58 p.m. ET.
The heat set a new all-time temperature since records began at the site in 1874.
Multiple parts of central and northern Utah will remain under an extreme heat warning until Tuesday morning….