Which meaning does the idiom in the following sentence convey?

The weather report called for a light drizzle, but its raining cats and dogs out there.

Animals are falling from the sky.
The weatherperson was correct.
The storm is severe and strong.
Pets are enjoying the weather

1 answer

The idiom "raining cats and dogs" conveys the meaning that the storm is severe and strong. It is an exaggerated way to describe heavy rainfall.