"strong rain" is correct and usable in written English. It can be used to describe the intensity of a rainstorm, either metaphorically or literally. For example, "The sky was dark and filled with clouds, and soon the strong rain began.".
So make sure to pack an umbrella that can withstand strong rain and wind.
"In the next five hours we were in the sea buffeted by wind and strong rain.
The two main types of rain tires have smaller treads for lighter rain or thick, heavy treads for strong rain.
Hilkey has said the slide was most likely triggered by runoff from Grand Mesa following two days of strong rain.
Strong rains knocked down the power lines.
They are often but not always associated with thunderstorms or strong rains.
Strong rains occasionally blew through, turning stretches of riverbank to mud.
Thanks to Ludwig my first paper got accepted! The editor wrote me that my manuscript was well-written
Listya Utami K.
PhD Student in Biology, Bandung Institute of Technology, Indonesia