It's currently typhoon season in Japan (and the rest of the southwest Pacific) and typhoon 1014 "Chaba" is currently in it's way past Tokyo and back out to sea, where it'll lose it's ferocity and die at sea.
Below is a couple of screengrabs from the Japanese Meteorological Agency (www.jma.go.jp) which does a fine 'n' dandy job of charting typhoons, earthquakes and similiar forecasts.
Today it hasn't stopped raining in my part of southern Nagano and judging by the noise of the overflow river next to my house, it rained a lot last night too. Chaba is (was) rated a 4 (5 being the most violent), and managed to kill a few people down in Okinawa on it's way up the south coast of Japan. For me the good news is that the typhoon clears the skies of clouds, so tomorrow will be a lovely day!
The red X is where I live, roughly.