ゲリラ豪ごう雨う

expression, noun

guerrilla rainstorm; sudden torrential downpour

Refers to a localized, intense rainstorm that occurs suddenly, often in summer, and can cause flash flooding. The term likens the unpredictable, hit-and-run nature of the rain to guerrilla warfare.

See also: ゲリラ

• 昨日きのうのゲリラ豪ごう雨うで駅えき前まえが水みず浸びたしになった。

  The area in front of the station was flooded by yesterday's guerrilla rainstorm.

• 夏なつはゲリラ豪ごう雨うに注ちゅう意いが必ひつ要ようだ。

  In summer, you need to watch out for sudden torrential downpours.