Climate Change

What is a heat dome? An atmospheric scientist explains the weather phenomenon baking California and the West

Heat domes trap stagnant, hot air over areas, often for days or weeks. Image: Unsplash/USGS

William Gallus
Professor of Atmospheric Science, Iowa State University
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Climate Change

A diagram of a heat dome above the USA.
Heat domes involve high-pressure areas that trap and heat up the air below. Image: NOAA
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