00:00Nineteen states are under extreme heat warnings right now.
00:03And forecasters are warning millions of Americans to stay indoors during the hottest hours of the day.
00:09The dome of high pressure sitting over the southwest is pushing afternoon temperatures in Las Vegas, Phoenix, and Death Valley
00:16up to 110, even 120 degrees Fahrenheit.
00:21And here's the part that makes this dangerous.
00:24Overnight lows in the hottest desert basins are barely dropping below 90 degrees, which means bodies never get a real
00:30chance to cool down and recover.
00:32This isn't just a southwest problem.
00:35The warnings stretch all the way into the Midwest and south, covering major cities like St. Louis, Memphis, and Little
00:42Rock, where triple-digit heat is combining with humidity to push heat index values even higher.
00:48The same dry, windy conditions fueling this heat are also driving extreme fire danger across the northwest.
00:55With red flag warnings posted from Montana to Utah, emergency officials are urging people to avoid outdoor activity during peak
01:03afternoon hours.
01:04Drink water constantly, even if you don't feel thirsty.
01:07And check on elderly neighbors and anyone without air conditioning.
01:11Cooling centers are open in major cities across the affected region.
01:15And forecasters say this dangerous heat is not letting up anytime soon.
01:20Disclosure.
01:21This video contains stock footage and content created or enhanced using AI-assisted tools.
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