This website is basically USGS meets the National Weather Service in Japan. That's right. It's the official website of the Japanese Meteorological Agency(Kishōchō). Aside from weather, it is also responsible for observation and warning of earthquakes, tsunamis, and volcanic eruptions. Anyway, I love the website. It's not as advanced as the NHC or USGS or NWS, but it's a good site none the less.