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March 25, 2026

Record-smashing heat spreads: ‘Basically the entire US is going to be hot’

  • The gigantic heat dome baking the Southwest will likely dwarf historic heatwaves in the Pacific Northwest in 2021 and the Upper Midwest in 2012, and it’s still expanding.
    • By SETH BORENSTEIN
    AP Science Writer

    Brian Hermosillo wipes sweat from his brow while installing a new air conditioning unit during record-breaking heat on Thursday in Tempe, Arizona. AP Photo/Caitlin O’Hara [enlarge]


    After smashing March heat records in 14 states and the U.S. as a whole, the gigantic heat dome that’s baked the Southwest is creeping eastward and may end up being one of the most expansive heat waves in American history, meteorologists and weather historians said.


     
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