How to make lightning effect like this?

Hello everyone,

I’m trying to make the heavy rain effect. When the lightning goes up, the environment should get a bit brighter. Here is a video to show the effect. The effect appears at 27:28 - 27:35.

I can make lightning visual and rain particles, but how to make the environment a bit brighter when the lightning goes up?

EDIT: An additional image is added. As it can be seen from the image, the environment is really dark in first frame, however, when the lightning goes up, the environment becomes brighter like in the second frame

I added an image of the effect I want