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Graphic concept of a heat dome phenomenon trapping extreme high temperatures

Weather NewsWhat Is a Heat Dome? The Science Behind Summer's Deadliest Weather PatternYesterday

GOES-18 infrared satellite loop from July 23, 2026, showing clear skies expanding under the building heat dome across the Southwest and Plains as Tropical Storm Bertha's cloud mass moves through the western Gulf Coast.

Weather NewsDangerous Heat Dome Stretches from Texas to Dakotas with Triple-Digit Highs2 weeks ago

Climate Central forecast map showing average high temperatures across the U.S. on July 14, 2026, with widespread triple-digit heat across the Plains, Midwest, and Great Lakes.

Weather News'Steam Cooker' Heat Dome Sends RealFeel Temps to 115 in the Plains3 weeks ago

Smoke from the Aspen Acres Fire billows up toward a home near Colorado City, Colo., on Thursday, July 2, 2026. (Michael Seamans/The Gazette via AP)

Weather NewsNew Heat Dome Turns Up the Heat on Western Wildfires4 weeks ago

GOES-18 Band 16 infrared satellite image showing the warm heat dome (orange/red) over the central and southern U.S. as cooler air pushes in from the north

Weather NewsCollapse of Heat Dome Will Result in Rain and Storms for Central and Eastern U.S.Last month

Man with heat stroke sitting on bench, tired of hot temperature, summer weather in city.

Weather NewsWhat Happens to Your Body After Hours in a Heat DomeLast month

The Weather Prediction Center's Day 2 national forecast map showing the transition of the heat and storm pattern, with Critical Fire Weather conditions over Colorado and the central Rockies while severe thunderstorm threats continue across the northern Plains — the weather pattern preceding the western heat dome expansion forecast for next week.

StormsFrom One Extreme to Another: A New Heat Dome Is Targeting the Western U.S.Last month

The Storm Prediction Center's Day 1 categorical outlook issued June 30, 2026, showing a Level 3 Enhanced risk of severe thunderstorms over the central Plains and Nebraska, a Level 2 Slight risk spanning the Great Lakes into New England, and a broad Marginal risk across much of the central and eastern U.S. through Wednesday morning.

Weather NewsLevel 3 of 5 Storm Threat in Place as Severe Weather Circles the Heat DomeLast month

Weather NewsNo Storm Sirens, No Warnings You Can See — Why Heat Domes Are America's Most Underestimated KillerLast month

4th of July BBQ, grilling hamburgers for a holiday

Weather NewsHeat Dome Will Deliver Sizzling Temperatures Ahead of Independence Day for MillionsLast month