YOU SAID:

The rain came down and the floods came up.

INTO JAPANESE

雨が降り、洪水が起こった。

BACK INTO ENGLISH

It began to rain and a flood took place.

INTO JAPANESE

雨が降り出し、洪水が発生した。

BACK INTO ENGLISH

It began to rain and a flood occurred.

INTO JAPANESE

雨が降り出し、洪水が発生した。

BACK INTO ENGLISH

It began to rain and a flood occurred.