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    ゲリラ豪雨が発生する (gerira gouu ga hassei suru - guerrilla heavy rain occurs)

    Grammar & Usage

    verb phrase
    neutral

    How it works

    Formed by the compound noun 『ゲリラ豪雨』 (sudden localized torrential rain), the subject-marking particle 『が』, and the irregular verb 『発生する』 (to occur/arise). It functions as an intransitive clause commonly used in weather reports, warnings, and hazard discussions. The verb 『発生する』 can be inflected into polite form (発生します), continuous/progressive state (発生している), or past tense (発生した).

    Sample sentences

    午後から大気の状態が不安定になり、都内各地でゲリラ豪雨が発生する恐れがあります。

    Atmospheric conditions will become unstable in the afternoon, and there is a risk that sudden guerrilla downpours will occur across various parts of Tokyo.

    近年、地球温暖化の影響でゲリラ豪雨が発生する頻度が高くなっています。

    In recent years, the frequency of sudden torrential rainstorms occurring has increased due to the impact of global warming.

    ゲリラ豪雨が発生した場合は、地下街から離れて頑丈な建物に避難してください。

    If a guerrilla downpour occurs, please move away from underground areas and evacuate into a sturdy building.

    Quick facts

    etymology:『ゲリラ豪雨』 is a modern meteorological buzzword coined in Japan in the late 2000s combining the Spanish loanword 'guerrilla' with 豪雨 (torrential rain) to describe unpredictable, localized cloudbursts.
    usageContext:Predominantly used in news broadcasting, weather forecasts, and disaster prevention literature.
    verbConjugation:Suru-verb (サ変動詞): negative 発生しない, polite 発生します, conditional 発生すれば / 発生したら

    Mnemonic

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    Example

    午後から大気の状態が不安定になり、都内各地でゲリラ豪雨が発生する恐れがあります。

    Atmospheric conditions will become unstable in the afternoon, and there is a risk that sudden guerrilla downpours will occur across various parts of Tokyo.

    近年、地球温暖化の影響でゲリラ豪雨が発生する頻度が高くなっています。

    In recent years, the frequency of sudden torrential rainstorms occurring has increased due to the impact of global warming.

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