noun
high pressure to the west, low pressure to the east
A meteorological pattern describing a winter pressure configuration over Japan, often associated with cold, clear weather on the Pacific side and snow on the Sea of Japan side.
冬型の気圧配置は西高東低です。
The winter pressure pattern is high to the west and low to the east.
西高東低の気圧
When the west-high, east-low pressure pattern intensifies, heavy snow falls on the Sea of Japan side.