The rain was quite heavy this morning in parts of Kumamoto.

The following NHK article says that Yamato-machi got about 20 centimeters of rain in just three hours:

https://www3.nhk.or.jp/nhkworld/en/news/20210517_15/

The following link has an English-language video that reports that a woman in her 70s has gone missing in Yamato-machi. She went to check on her fields and has not been seen since.

– Kirk

https://www.nippon.com/en/news/ntv20210517003/woman-missing-after-torrential-rain-in-kumamoto-prefecture.html