noun
abnormally warm winter
Refers to a winter season with unusually high temperatures, often discussed in the context of climate anomalies or weather reports.
今年は暖冬異変で、雪がほとんど降らなかった。
This year, due to an abnormally warm winter, there was almost no snow.
暖冬異変の影響で、冬
Sales of winter goods are declining because of the abnormally warm winter.