YOU SAID:

When it rains in pours

INTO JAPANESE

土砂降りの雨が降ったとき

BACK INTO ENGLISH

When it rained heavily

INTO JAPANESE

激しい雨が降ったとき

BACK INTO ENGLISH

when it rains heavily

INTO JAPANESE

激しい雨が降ったとき

BACK INTO ENGLISH

when it rains heavily