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NOAA satellites have been watching the effects of a heat dome

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that settled over Texas and parts of Mexico since early June 2023.

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The heat dome is expected to spread northward and 
persist through July 4 with no relief in sight.

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A heat dome is a ridge of high pressure that traps hot air.

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While the heat dome is causing record-breaking temperatures in the

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south, it has also led to severe weather.

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The edge of the heat dome meeting with cooler air can trigger severe

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thunderstorms, tornadoes, and high winds.

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The NOAA/NASA Suomi NPP and NOAA-20 satellites measured land

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surface temperature, revealing the extent of the heat dome.

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Data collected by the satellites is used within models such as the

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Global Forecast System to accurately predict conditions.

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Meanwhile, GOES East watched the heat dome interact with cooler air

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in near real-time as is seen with water vapor imagery.

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As these explosive storms developed along the edge of the dome

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and traveled eastward, GOES tracked their movement.

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GOES East also measured lightning within the storms.

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Infrared imagery from GOES East also 
revealed the intensity of the storms.

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The red areas represent the coldest cloud tops and indicate the areas of

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of greatest storm intensity.

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NOAA satellites will continue to monitor the areas affected by extreme

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temperatures and associated severe weather.

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Earth From Orbit: Extreme Heat and Severe Weather Plague Parts of North America

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NOAA Logo

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NASA Meatball

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