急きゅう潮ちょう

noun

rapid tide; fast tidal current

Refers to a swift tidal flow, often used in nautical or oceanographic contexts. It is formal or literary.

• この海かい域いきでは急きゅう潮ちょうに注ちゅう意いが必ひつ要ようだ。

  In this sea area, one must be careful of rapid tides.

noun

storm surges on the Pacific coast

Specifically refers to storm surges affecting the Pacific coast of Japan. This is a specialized meteorological/oceanographic term.

• 台たい風ふうの接せっ近きんに伴ともない、太たい平へい洋よう岸がんでは急きゅう潮ちょうが発はっ生せいする恐おそれがあります。

  With the approach of the typhoon, there is a risk of storm surges occurring on the Pacific coast.