冬型 ふゆがた気圧 きあつ配置 はいちだったら
fuyugatakiatsuhaichidattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of 冬型気圧配置

1. If/when the winter-type pressure pattern…; If it were a winter-type pressure pattern…

Tara Conditional