Nice. Japan needs better weather data; too many hurricanes and too much coastal development. From geostationary orbit, the resolution has to be low, but it's always on.

The US has two geostationary weather satellites, which are usually parked roughly over Panama and Hawaii. Neither has good coverage of Japan. Korea's COMS satellite does, though. China has several, including one that's usually pointed roughly at Taiwan.[1] Right now, you can see the hurricane that's due east of Shanghai.

[1] http://www.hko.gov.hk/wxinfo/intersat/fy2e/satpic_s_vis.shtm...