A severe heat wave is affecting the Midwest and Great Lakes states. The National Weather Service has described conditions as "dangerous" due to intense heat and humidity. Millions of people are being impacted by the high temperatures.

The heat wave is expected to move to the eastern United States, bringing the extreme conditions to that region. The heat index, which combines heat and humidity, is a major factor in the dangerous conditions.

Further information on the heat wave and its impact can be found through the National Weather Service and other sources, including Yourbasin and Big 2 KMID + Fox 24 KPEJ.