Why & how does it work? High pressure & extreme heat

No matter your location, heat is a feature you can experience several times a year. If you are in the South, it's the main character! But there are prolonged hot stretches which are courtesy of a specific weather pattern.

Prolonged extreme temperatures are often due to the infamous dome of high pressure, which could stay sitting in the same place for several days to a couple of weeks. But do you know how these domes work? Why is it that these pesky high pressures bring so much heat often for such an extensive time? We got the answer for you!