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A stationary front line across the archipelago.
Also known as: Rainy season front Japan, Meiyu front
The near-stationary rain front that crosses Japan each early summer, drawn on the chart in the stationary-front notation.
Marks the near-stationary front that brings the Japanese rainy season.
Contexts: Public information, Maps
Uses the international stationary-front notation, with the triangles and half-discs on opposite sides to say that neither air mass is displacing the other; on the Japanese chart it is the single most consequential feature of early summer and its position is reported as news.
Contexts: Public information, Maps
A long line across the chart carrying triangles on one side and half-discs on the other, the two alternating along its length.