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A Sweltering Heat Dome Is Pummeling the Middle of the US. Here's What That Means
UNITED STATES, JUL 23 – The heat dome centered in the Mississippi Valley is expected to impact over 100 million people with temperatures reaching up to 115 degrees, expanding northeast and possibly westward.
- On July 25, 2025, Meteorologists from the National Weather Service warned that a slow-moving pattern starting July 23, 2025, would peak at nearly 90 million at-risk by July 25.
- William Gallus explained that a persistent high-pressure system traps heat over the Mississippi Valley, which is expected to expand northeastward.
- Over 35 million people face major or extreme heat risks, shows the risk scope, with 130 million Americans under heat alerts across 20 states on Thursday.
- Before a cold front arrives, the heat dome will peak Friday afternoon, followed by showers and thunderstorms.
- Forecasts predict the heat dome will persist through next week and could spread to the western US in early August, AccuWeather reports.
15 Articles
15 Articles
By Mary Gilbert, CNN Extreme heat will peak Thursday for millions of people across the central United States, a heat dome in the hottest month of summer that lives up to its reputation. But the sweltering conditions are just beginning farther east. Wind chill values—which reflect what the temperature actually feels like, taking into account humidity—will exceed 100 degrees Fahrenheit from the Gulf Coast to the Midwest Thursday afternoon, and cou…
Extreme heat is heading for the Northeast. Here’s when it will end
Dangerous heat peaked today for millions in the central United States as a heat dome in summer’s hottest month lives up to its reputation — but sauna-like conditions are only just beginning for areas farther east.
Significant ‘Heat Dome’ Builds Across Much of US, NWS Says
A massive “heat dome” will bring long-lasting high temperatures across swaths of the United States starting this week, according to federal weather forecasters, who say that more than 80 million people are currently under some form of heat-related advisory as of Wednesday. “Dangerous heat is expected” across portions of the southern and central United States through the end of this month, the National Weather Service (NWS) said on Wednesday in a…
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