気き圧あつの谷たに

expression, noun

low pressure trough

A meteorological term for an elongated area of low atmospheric pressure, often associated with cloudy or rainy weather. Used in weather forecasts and scientific contexts.

• 明日あしたは気き圧あつの谷たにの影えい響きょうで天てん気きが崩くずれるでしょう。

  Tomorrow the weather will likely worsen due to a low pressure trough.