A stalled frontal boundary from southeastern China through Taiwan and Japan will be the focal point for rounds of heavy rainfall through the first half of this week.
While the entire region will not receive heavy rainfall each day, on any given day, rainfall of 25-50 mm (1-2 inches) will be possible with total rainfall through early next week averaging 75-150 mm (3-6 inches).
The hardest-hit areas will receive more than 300 mm (12 inches) of rain. This amount of rainfall is most likely in western Taiwan and Kyushu, Japan.