kiak-hǒ͘激雨

to have rain brewing

to have rain brewing; to have rain building up (such as during sultry and muggy weather and/or dark skies)

impersonal

English Wiktionary, “激雨” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E6%BF%80%E9%9B%A8 · confidence: Medium (Wiktionary PH)