What causes extreme heat domes and how do they impact weather?

Extreme heat domes are like big bubbles of hot air that trap heat close to the ground, making it feel even hotter than it is.

Imagine you're playing outside on a really sunny day. The sun warms up the ground, and then the hot ground warms up the air just above it. Now imagine a blanket suddenly comes down over your head, that's like what happens in a heat dome! The warm air gets stuck under this blanket, so it can't go anywhere. It stays really hot near you, making everything feel even more sweltering.

Think of the atmosphere as a big layer cake. When a heat dome forms, it’s like a thick, heavy layer of warm air on top, it acts like a lid that keeps the heat from escaping. This makes the temperature below go up, just like how you feel hotter in a closed car on a sunny day.

When a heat dome stays for a long time, it can cause really hot days, sometimes even breaking records! It also affects other weather, like making rain weaker or causing droughts. It's like having a big, warm hug that doesn’t let go, you just stay hot and uncomfortable!