Question

The rain fell furiously from the sky. Making it impossible for us to see the road.
owletement or sentence.

Answer 1

It's a owletement Making it impossible for us to see the road, the rain fell furiously from the sky.

Answer 2

I don't know what an owletement is. No definition can be found. Did you spell it right?
The period should be replaced with a comma. The second part is not a complete sentence.
The rain fell furiously from the sky, making it impossible for us to see the road.