Visualized on Google Maps is rainfall data from the numerical weather prediction model GPV (meso scale model) by Japan Meteorological Agency at the surface level (10 meter height). You can see the amount of rainfall all over eastern Japan centered on Fukushima Daiichi nuclear power plant by Tokyo Electric Power Company (TEPCO). Moving the slider shows you the past and the future of rainfall.
The graph shows the time series of hourly rainfall and accumulated rainfall, where blue lines represent rainfall at AMeDAS Namie (approximately 10 kilometers from Fukushima Daiichi), purple lines, radar rainfall at AMeDAS Namie, and red lines, radar rainfall at Fukushima Daiichi Nuclear Power Plant. Because the radar rainfall does not represent the observed value, it may contain errors due to many factors. Please use it as a rough reference.
This graph illustrate hourly and accumulated rainfall around Fukushima Daiichi Nulcear Powre Plant from Meso Model GPV. This forecast is updated every three hours, and forecast rainfall will change frequently. Please check the latest information, and use it as a rough reference.