温暖前線(おんだんぜんせん)

おんだんぜんせん
noun
warm front
1. warm front
A boundary at which a mass of warm air moves in and rises over a mass of cooler air. A standard term in weather forecasts and meteorology.
温暖前線(おんだんぜんせん)が近(ちか)づいている。
A warm front is approaching.
温暖前線(おんだんぜんせん)の通過(つうか)に伴(ともな)い気温(きおん)が上(あ)がる。
The temperature rises as the warm front passes through.
明日(あした)は温暖前線(おんだんぜんせん)の影響(えいきょう)で、広(ひろ)い範囲(はんい)で雨(あめ)が降(ふ)るでしょう。
Tomorrow, due to the influence of a warm front, rain is expected over a wide area.

Composed of 温暖(おんだん) (warm, mild) and 前線(ぜんせん) (front line; in meteorology, the boundary between two air masses). A technical term used primarily in weather forecasts. In Japanese TV weather reports, 温暖前線(おんだんぜんせん) is shown on weather maps as a red line with semicircles pointing in the direction of movement. Warm fronts typically bring gentle, extended rainfall, in contrast to the heavier, shorter downpours associated with cold fronts.

COMMON COLLOCATIONS:

  • 温暖前線(おんだんぜんせん)が通過(つうか)する: a warm front passes through
  • 温暖前線(おんだんぜんせん)が近(ちか)づく: a warm front approaches
  • 温暖前線(おんだんぜんせん)の影響(えいきょう): the influence of a warm front
  • 温暖前線(おんだんぜんせん)に伴(ともな)う雨(あめ): rain accompanying a warm front

RELATED TERMS:

  • 寒冷前線(かんれいぜんせん): cold front
  • 停滞前線(ていたいぜんせん): stationary front (often associated with the rainy season)
  • 閉塞前線(へいそくぜんせん): occluded front
  • 前線(ぜんせん): front (meteorological)
  • 気圧(きあつ): atmospheric pressure
  • 低気圧(ていきあつ): low pressure system
general
Added 2026.4.11 21:54
23000/23240_ondanzensen