Life-threatening heat dome intensifies as ring of fire storms rumble across central US

These systems trap heat beneath them and lead to stretches of very hot, dry weather. While this particular heat dome won’t likely break any records, it will push temperatures into the upper 90s for a huge portion of the country.

KANSAS CITY, Mo. – The big weather story this week is a large area of high pressure building over the central U.S., often called a "heat dome," the FOX Forecast Center warns.

These systems trap heat beneath them and lead to stretches of very hot, dry weather. While this particular heat dome won’t likely break any records, it will push temperatures into the upper 90s for a huge portion of the country. 

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A look at the heat alerts issued for the central and eastern U.S. through Thursday, July 24, 2025.
(FOX Weather)


 

What will make it feel even worse is the humidity. With dew points running high, the heat index, or "feels-like" temperature, will soar above 100 degrees in many major cities, like St. Louis, Kansas City and Oklahoma City. Some areas could even feel closer to 110-115 degrees.

The high humidity makes it harder for your body to cool off through sweating, which is why it feels so much hotter than the thermometer shows, the FOX Forecast Center added.

A building heat dome is expanding out of the southern states and into the heart of the country this week.
(FOX Weather)


 

Underneath the heat dome, the weather will stay mostly dry. Texas, for example, will continue drying out this week, which is a welcome break after recent flooding in places like Kerrville.

However, not every part of the country will be dry. The moisture being blocked from rising straight up into the heat dome is instead getting pushed around it. 

This creates a setup where storms fire up along the northern and eastern edges of the dome. These "ring of fire" storms are powered by daytime heat and plenty of unstable air. They can bring damaging winds, large hail and heavy rain. If storms stall over the same area, flash flooding can happen, especially in places that have recently flooded.

A look at the severe storm threat in the northern Plains on Tuesday, July 22, 2025.
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To start the week, the areas most at risk for storms and flash flooding include the Midwest, the Tennessee River Valley and parts of the Southeast

A familiar summertime pattern will take shape around the edges of the heat dome, often referred to as the "ring of fire."
(FOX Weather)


 

The heat dome will slowly shift eastward during the week, which may briefly reduce the storm chances in some places, but the heat isn’t going anywhere.

By Thursday, portions of the Great Lakes will see feels-like temperatures climb into the mid- to upper 90s, as dew points rise into the 70s. Come Friday, the worst of the heat will target the Interstate 95 corridor. From Washington to New York City and Boston, high temperatures will reach into the 90s. 

As a massive heat dome settles across central and eastern portions of the U.S., heat will begin to expand into the Northeast as the pattern slowly shifts eastward later in the week.
(FOX Weather)


 

With the tropical air mass factored in, it will feel more like 100-plus degrees during the afternoon. A few record highs will be possible Friday, with areas like Newark, New Jersey, potentially reaching into the upper 90s.

Into the weekend, the heat will wane slightly for areas such as New York City and Boston (with highs returning to the 80s), but it will remain brutally warm across the mid-Atlantic

Long-range forecasts keep the East and Northeast above average through the rest of the summer.

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