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A heat dome acts like a lid in the atmosphere. High pressure traps hot air near the ground, blocks clouds from forming, and allows the sun to beat down without relief—intensifying every hour people spend outside.
Even regions like the Midwest and Great Plains will feel it. Areas that usually see 40–60°F in March could surge into the 80s, creating a sudden and unnatural jump that many aren’t prepared for.
The National Weather Service has issued hazardous weather warnings, not just for the heat—but for what comes with it. Dry air and extreme temperatures are creating perfect conditions for wildfires to ignite and spread rapidly.