YOU SAID:

Looking up you see a siren, it's making a whining noise.

INTO JAPANESE

見上げるとサイレンが鳴り響いています。

BACK INTO ENGLISH

When I look up, sirens are blaring.

INTO JAPANESE

見上げるとサイレンが鳴り響いている。

BACK INTO ENGLISH

When I looked up, a siren was blaring.

INTO JAPANESE

見上げるとサイレンが鳴り響いていた。

BACK INTO ENGLISH

When I looked up, sirens were blaring.

INTO JAPANESE

見上げるとサイレンが鳴り響いていた。

BACK INTO ENGLISH

When I looked up, sirens were blaring.