Just in time for today’s heavy rain, Japan has a new warning scale:
https://www3.nhk.or.jp/nhkworld/en/news/20210520_11/
The best place I know of to find information about such warnings that have been issued for Kumamoto is on the following Yahoo page:
https://crisis.yahoo.co.jp/evacuation/43/
The information in Japanese so, if you don’t read Japanese, you’ll probably want to run it thought some sort of translation too. On a computer, I find that the Google translated extension works well on the Chrome browser. On an iPhone, I just learned how to install and use Microsoft Translator in Safari:
https://www.businessinsider.com/how-to-translate-a-page-on-iphone
I think it works quite well. I haven’t tried it yet but as Android is Google OS, it seems that they have good options for translating web pages on the fly there too.
I just expect to be able to warn people about the need to evacuate in advance. If you are in a vulnerable area, you’ll need to develop your how method of monitoring things. I’ll post again with another tool from Kumamoto Prefecture in a few minutes. – Kirk