noun
first spring storm; strong spring winds
Refers to the first strong southerly winds of the year, typically occurring between February and March, signaling the arrival of spring. Often used in weather forecasts.
今日は春一番が吹いて、急に暖かくなった。
The first spring storm blew today, and it suddenly became warm.
気象庁は明日、春
The Meteorological Agency announced that there is a possibility of the first spring storm blowing tomorrow.