http://www.jma.go.jp/jp/radnowc/imgs/radar/211/201808232140-00.png
http://www.jma.go.jp/jp/gms150jp/imgs/0/colorenhanced/1/20180823213000-00.png
http://www.ssd.noaa.gov/PS/TROP/floaters/23W/imagery/rbtop0-lalo.gif