Because of the bad weather, we can't see anything below. Why use below instead of under here?

Because of the bad weather, we can't see anything below.

key word

Because? Because? ; ? because

Bad weather? Vicious climate

Below? Down there? ; ? The following ...; ? Less than? ; ? Below? ; ? Below zero? ; ? Secondary

Why use the bottom? It means that the following is specially made.

And under is a word, usually followed by a noun. Like down there? This .. .