A large and very strong typhoon is moving in a northwesterly direction off Japan's southern islands, the weather agency said Friday, warning of possible torrential rainfall in the region.Typhoon Champi, the year's 30th, is forecast to pass near a group of islets southwest of Okinawa Island through Saturday, according to the Japan Meteorological Agency.The agency urged caution against gusts of wind, rising tides and natural disasters. It also warned that the remote islands could see linear rainbands form between Friday and Saturday, with the phenomenon potentially bringing localized downpour…READ FULL ARTICLE