Heat dome builds in central US, forcing some schools to close

The video discusses the movement of warm air from the Gulf of Mexico into the plains and Great Lakes, leading to high temperatures and humidity, especially in Chicago. It highlights temperature variations across regions, with New England experiencing milder weather compared to the South. The monsoon season brings moisture to the Southwest, causing severe storms in the plains. Weather alerts and warnings are issued for millions, particularly in Chicago, due to extreme heat conditions.

Which regions are expected to experience severe storms later today?

How many people are under heat alerts and advisories today?