津つ波なみ警けい報ほう

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Meanings

tsunami warning

Official alert issued by meteorological agencies when a tsunami is expected or detected.

〈場ば所しょ〉に津つ波なみ警けい報ほうが出でるa tsunami warning is issued for 〈place〉
沿えん岸がん部ぶに津つ波なみ警けい報ほうが出でた。
A tsunami warning was issued for the coastal areas.
津つ波なみ警けい報ほうが発はっ表ぴょうされるa tsunami warning is announced/released
地じ震しんの直ちょく後ごに津つ波なみ警けい報ほうが発はっ表ぴょうされた。
A tsunami warning was announced right after the earthquake.
津つ波なみ警けい報ほうを解かい除じょするto lift/cancel a tsunami warning
数すう時じ間かん後ご、気き象しょう庁ちょうは津つ波なみ警けい報ほうを解かい除じょした。
Several hours later, the Meteorological Agency lifted the tsunami warning.

警けい報ほうN2
警報 is the general word for any official warning (storm, flood, etc.), while 津波警報 specifically refers to the tsunami warning issued by the meteorological agency.

津つ波なみ注ちゅう意い報ほう
津波警報 is the urgent 'tsunami warning' level, while 津波注意報 is the milder 'tsunami advisory' issued for smaller expected waves.
大おお津つ波なみ警けい報ほう
津波警報 warns of a tsunami of moderate height, whereas 大津波警報 is the highest-level alert issued when an extremely large, life-threatening tsunami is expected.

Compound of 津波 (tsunami) and 警報 (warning, alarm).