What to know

• Typhoon Saudel was about 180 kilometres northwest of Okinoerabu island, packing winds of up to 144 kph as of late morning Wednesday as it headed toward China's eastern coast, the Japan Meteorological Agency saidS1
• A powerful typhoon is heading west over the East China Sea after slamming Okinawa and other remote southwestern Japanese islands, causing blackouts, flight cancellations and threatening landslidesS2