US Central Heatwave Expected to Exceed 37 Degrees Celsius, 70 Million Under Heat Alert

Much of the central United States is bracing for a dangerous heatwave, with temperatures predicted to soar above 100 degrees Fahrenheit (37.8 Celsius) from Dallas to North Dakota. Approximately 70 million people are under high-temperature advisories as a "heat dome" phenomenon traps hot air, leading to prolonged and oppressive conditions.

Nighttime temperatures are not expected to offer much relief, intensifying the strain on residents. The extreme heat, combined with high humidity, will make the heat index feel even more unbearable. This intense heatwave is forecast to span the entire week, affecting vast areas from the Southwest deserts to the Gulf Coast and extending north into the Midwest and Plains.

Some regions, like Denver, Colorado, could see record-breaking temperatures, potentially 10 to 15 degrees Fahrenheit above normal. Western Nebraska is expected to reach 108 degrees Fahrenheit (42 Celsius) on July 25-26. Even areas known for milder climates, such as parts of Montana and Wyoming, are predicted to exceed 100 degrees Fahrenheit.

While directly linking specific extreme weather events to climate change remains complex, experts note that rising carbon dioxide levels from fossil fuel burning are making heatwaves more frequent and intense. This aligns with climate models predicting more severe heat events, with greater temperature anomalies and increased humidity and nighttime warmth, highlighting climate change as a central contemporary issue.

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We are now experiencing what climate models predicted in the 1990s: heatwaves that are more frequent, more intense, with larger temperature anomalies, and with humidity and nighttime temperatures rising together. These are becoming the core issues of contemporary climate.